Pressure Sensing

Description

Force, pressure, and stress are generally all grouped into the same measurement category. There are subtle differences: force is a push or pull upon an object from another object, stress is a result of force applied to an object per unit area that causes a deformation, and pressure is a type of stress normally associated with a force applied by a gas or liquid. We won't get into deep physics here; the design considerations, circuits, and block diagram pages focus on how to process a signal from a transducer that responds to different types of forces applied to solids, liquids, or gasses and how to select a signal chain for the application.

Please click the "design considerations", "circuits", and "block diagrams" tabs above for information that will help you build your design.

 

The need to measure force generally arises in order to keep a system either under control or alternatively, in one piece. For example, a steam boiler made with a certain thickness of steel plate can resist a certain amount of pressure. If the pressure exceeds the material's threshold the boiler will rupture or explode. By measuring and monitoring the pressure within the boiler, certain controls can be added to the boiler, like a relief valve or signal that reduces the heat applied to the boiler in order to avoid a catastrophic event. Pressure transducers are used to measure this type of force. Another example: a bridge doesn't move, usually, but it is subject to forces due to weather (wind and temperature differentials) and load (weight of the structure and vehicles traversing the bridge). These conditions cause stress within the materials, and if the materials receive stress beyond what they are capable of handling the material can tear apart. Strain gauges are used to measure these forces and can determine if a structure is abnormally deforming so action can be taken before a failure occurs.

Signal Chain Functions and Operation


The accurate measurement of force, pressure, and stress requires a transducer or sensor capable of providing a signal that reflects the force, pressure, or stress that a measured object is experiencing. The ideal transducer provides a linear output – an output that increases linearly with increasing pressure or stress, and subsequently decreases linearly as the pressure or stress decreases. Most transducers however operate with some degree of non-linearity. For accurate measurements the signal usually must be linearized within the input circuitry.

Most force sensing transducers provide an output signal level that is very low, in the sub millivolt to tens of millivolts range. This range is similar in magnitude to the electrical noise within an environment. So circuitry must be designed to amplify the signal while filtering or rejecting noise. Fortunately the measurement of force does not require exceptionally high sampling rates, making filtering easier. Most signal chains are designed to meet an accuracy objective which includes low drift in time and with temperature changes. The circuitry must provide exceptional reliability.

Most pressure or force transducers take the electrical form of a Wheatstone bridge:

Figure 1. Wheatstone bridge diagram
Figure 1. Wheatstone bridge diagram

A Wheatstone bridge circuit, once balanced, outputs a voltage proportional to the change in resistance of one or more of the resistors within the bridge. A strain gauge or MEMS transducer is essentially a variable resistor and when used for measuring force is placed into a Wheatstone bridge circuit either with other strain gauges or other precision resistors so that the bridge is nulled. When one or more of the strain gauges experiences stress or deformation, a voltage appears on the bridge output.

The purpose of the signal chain is to accurately bring a very small analog signal to digital. To do this, the sensor signal chain performs the following functions:

1. Transducer excitation

Accurate and stable voltage or current sources with low-temperature drift are required for sensor excitation. To easily eliminate effects of reference voltage tolerance, it is common practice to use the same reference for both the sensor excitation and the analog-to-digital converter (ADC). This makes the signals ratiometric, eliminating first-order tolerances allowing the use of less accurate references, or alternately providing higher performance from a given reference.

2. Signal amplification

In many designs the transducer's output full scale range will be very low (e.g., 20mV), while the input full scale range of ADC is much wider (e.g., 2V). In such cases, the transducer's output signal must be amplified to match the input range of the ADC before it is converted by the ADC to digital.

3. Filtering

The bandwidth of the sensor transducer signal is generally narrow and the sensitivity to noise is high. It is, therefore, useful to limit the signal bandwidth by filtering to reduce the total noise. Filtering is usually accomplished using a passive filter.

4. Analog to digital conversion

This process involves accurately converting the analog signal into digital without introducing any artifacts or abnormalities during the conversion. Two primary converter architectures that are used in sensor signal chains are: SAR and Delta Sigma. Delta Sigma converters provide a good combination of low power, high resolution (up to 24-bit) and digital signal processing at low sampling rate. This meets the requirement for many sensors with low bandwidth signal. A fast SAR ADC provides a good combination of low power, medium/high resolution (up to 20-bit), fast settling time and no latency. This might be more appropriate when fast acquisition or many channels are being multiplexed into one ADC.

5. Linearization

Some sensors have a non-linear output. If the sensor output characteristic is well known and repeatable, the output can be linearized thereby increasing the accuracy of the design. These days generally digital linearization is more cost effective and more flexible. Digital linearization uses a lookup table after the signal is digitized to provide a correct linearized value for each output code from the ADC. Some more complex solutions may also require the use of digital signal processing (DSP) techniques for signal manipulation, error compensation, gain, and filtering depending on the transducer and the degree of accuracy required.

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Physical Elements of the Signal Chain


The design engineer who needs to measure a force usually starts with a signal chain that encompasses:

  1. Input multiplexor to handle multiple signals in one chain.
  2. One or more op amps for amplification and filtering.
  3. An analog-to-digital converter.
  4. One or more voltage references
  5. A microcontroller for digital signal processing and communications.

While custom signal chains can be designed to meet exact performance and cost needs, it is also possible that a modern, highly integrated single chip AFE product might fit the design parameters, especially if the design is for a mainstream application. At a minimum, AFE ICs integrate an ADC and a programmable-gain amplifier. See the section below "Highly integrated Signal Chains" for more information

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Specifying a Custom Signal Chain


The engineer's main task is to specify a signal chain that will reliably provide the signal measurements within the specified uncertainty range while also meeting cost constraints. There are many available performance tradeoffs especially when cost is a factor.

For the sensor signal chain, the quality of measurement is taken in account by:

  • Accuracy or systematic error
  • Precision or random error

Systematic error sources can be classified into three main categories:

  • Gain error
  • Offset error
  • Linearity error

Precision or random error sources include:

  • Quantization Noise
  • Thermal noise
  • Shot Noise
  • Flicker noise

The total error in the system is the combination of both error types.  Generally speaking each error type contributes about half of the total error, so to improve the quality of the measurements provided by the signal chain; the individual components should be chosen and configured to minimize both error types.

Let's review primary selection criteria for each element in a custom signal chain.

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Selecting an ADC


The most basic parameters involved in selecting an ADC are:

  1. Channels required
  2. Sampling rate
  3. Nominal resolution

Channels Required

Most ADCs provide one input channel but some products also integrate a multiplexor function to provide multi-input functionality.

Sampling rate:

Sampling rate for sensor applications is generally considered to be fairly low from a technology standpoint. Usually 50 samples a second will work, so multiply this by the number of channels being serviced by the same ADC to get your required sampling rate. Today's ADC technology provides much greater sampling rates in most cases, even when cost is a primary factor.

Resolution:

The resolution of an ADC is the number of steps, or divisions, that the ADC can divide the maximum input voltage into. For example a 12-bit ADC can provide 212 or 4096 divisions and a 16-bit ADC can provide 216 or 65536 divisions.

The resolution provided by the 2n formula is the ideal resolution and most ADCs usually don't meet this ideal resolution due to physical factors, most importantly thermal noise generated by the device and the signal chain. Some ADCs will provide a "noise-free resolution" spec. Use this specification as the converter's resolution to remove effects of noise.

As an example, if building a postage weigh scale, and the spec is to accurately measure to the nearest tenth of an ounce over a 10 pound range, you'll need an ADC capable of providing a minimum of 1,600 divisions, but to get repeatable accuracy to take into account thermal noise, other converter noise, and other signal chain errors, you'll usually multiply this value by 10, so for this application, 16,000 divisions. In this application a 16-bit ADC could most likely provide the needed resolution, if the input provided by the transducer is close to the converter's input range.

A typical 16-bit ADC that has an input (full scale) range of 3 Volts can resolve input divisions of 3/216 or 46 µVolts. If the maximum input signal can only reach 1V, due to an amplification limitation, the maximum number of divisions that the ADC will be able to detect is 1/3 of the max, or about 22,000 divisions. This would still be good enough to meet the postage scale example specs.

Thermal Noise effect on Resolution

Because of the noise errors accumulated within an ADC actual output codes generated by an ADC are never a single value. They are a range of values represented by histogram having an approximate Gaussian distribution. To ensure that the ADC will provide the needed resolution for the input voltage range it is a good idea to calculate the number noise free input divisions that the converter can provide (if it hasn't been provided in the product specification).

Statistics tells us that with Gaussian curves, 99% of the values output will fall within 6.6 sigma of the mean value, with the mean value centered on the most probable or expected division.

Figure 2. Noise free range illustrated
Figure 2. Noise free range illustrated

To help calculate this value most ADCs contain a parameter called VRMS Noise. Find this value on the datasheet. Multiply it by 6.6 to get the minimum noise free step in terms of Voltage that the converter can provide. Then take the input range and divide it by the minimum noise free step to get the noise free resolution. If this number is more than the number of divisions required in the application then the selected ADC should fit. If not, and it is not possible to further amplify the input from the sensor element, look for an ADC with a lower VRMS Noise specification. Here's an example:

The MAX11205 16-bit ADC provides a thermal noise specification of: 720nVRMS Noise

With an amplified sensor voltage input of 1 Volt, the number of noise free input divisions that the ADC can provide is:

            1 / (.00000720 x 6.6) = 213,000

The MAX11205 has an exceptionally low VRMS Noise specification, and so it can easily provide the noise free resolution that the above application requires.

Alternate phrasing for specifications involving the calculation of noise free resolution include: noise-free counts or codes inside the range.

Most high-precision ADC data sheets specify thermal noise as input referred noise and provide the specification in RMS noise or peak-to-peak noise. Sigma Delta converter data sheets typically report input referred noise or peak-to-peak noise vs. data rate output. The input referred noise is typically measured with input shorted and the noise is calculated from noise histogram plots.

Single or double ended inputs

ADC ICs are available with single-ended or differential inputs. For designs that require high precision and sensing of very low input voltage changes, an ADC with differential inputs is recommended. The differential input provides the best noise rejection, and wider dynamic range compared to a single-ended input. See application note 1108, "Understanding Single-Ended, Pseudo-Differential and Fully-Differential ADC Inputs", to obtain a more in-depth understanding.

INL – Integral Non-Linearity

In designs that require lower resolution ADCs, such as 10-bit through 16-bit converters, the INL parameter is a key parameter in determining the accuracy of the device. INL error is described as the deviation, in LSB or percent of full-scale range (FSR), of an actual transfer function from a straight line. All else being equal choose the ADC with a lower INL parameter in order to select the ADC that will provide the best accuracy. See application note 283, "INL/DNL Measurements for High-Speed Analog-to-Digital Converters (ADCs)", for a more in-depth understanding.

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Selecting an Op Amp


The function of the op amp in a signal chain is to amplify the output of the transducer in a linear fashion so that the maximum transducer output approximately matches the input range of the ADC. This acts to maximize the resolution of the signal chain.

Most load cells will provide a "span" or "sensitivity" specification that provides the maximum change of the cell's output for every Volt of excitation. Common ranges for load cells are 2mV/V to 20mV/V. Typically excitation voltages range from 3V to 5V. With this, the maximum output provided by transducers of this type can range from 10mV to 100mV, a fairly wide range but very dependent on the selected transducer.

The amplifier should convert this range to the maximum input range that the ADC can accommodate. Typically the ADC has a useable input range of from 2.5V to 3.3V. So the input amplifier might have to provide gains of 50 to 200 depending on the application.

The input op amp needs to amplify signals that are in the microvolt and millivolt range, the same range as naturally occurring noise. It is important that this circuit is selected properly and also laid out properly to prevent the amplification step from introducing errors. Look for low-noise amplifiers (LNAs) with extremely low offset voltage (VOS), low temperature, and offset drifts for this application.

In most small signal designs a low noise "auto-zero" op amp is the preferred op amp type. This will minimize the offset error potential in your signal chain. The MAX44246 is an example of this type of op amp. The diagram below shows a typical op amp deployment. Note the use of dual single ended op amps in lieu of an instrumentation amplifier. This approach provides better results when used with differential input ADCs.

Figure 3. Typical Op Amp deployment within a pressure sensing signal chain
Figure 3. Typical Op Amp deployment within a pressure sensing signal chain

Tip: Most pressure transducers take the form of a Wheatstone bridge. Please see application note 3426, "Resistive Bridge Basics: Part One", for in-depth information about working with Wheatstone bridge circuits.

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Selecting a Multiplexor


When selecting a multiplexor the design engineer primarily needs to know the basics: the number of input channels. In addition, the multiplexor must be able to accommodate the full input voltage range. In addition make sure the switching speed is fast enough for the application. Generally the product with the lowest "on" resistance that meets your cost goals is the best.

Tip: Learn about "Beyond-the-Rails" multiplexors and ADCs

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Selecting a Reference


The voltage reference provides a known voltage level at a high precision. Any deviation of the stated reference level can induce error into the system. For the sensor measurement application, the output of the reference is used as an input to the ADC or AFE and also as excitation to the transducer. This way if the reference voltage varies due to noise or other anomaly, both the sensor input and ADC experiences the same variance, reducing the total error.

The voltage reference contributes to systematic and random error. The reference noise source degrades the noise performance of the ADC. So a reference with better performance than the ADC should be chosen. The reference's initial error and drift over temperature and time for a high precision system is one of the most important contributors of gain error. For systems that are calibrated, the drift over temperature and time is the most critical parameter.

Key parameters in selecting a reference include: load drive, initial accuracy, noise, temperature drift, and stability. The load drive in a pressure sensor application can be higher than in many other applications due to the need to drive the transducer. Transducer load can be in the range of 10 to 20 milliamps for a typical pressure transducer in addition to that required by the ADC.

The MAX6325/MAX6341/MAX6350 are low-noise, precision voltage references with extremely low, 0.5ppm/°C, typical temperature coefficients and excellent, ±0.02% initial accuracy. These references are recommended for signal chains with ADCs of 16-bit resolution and up.

For more in-depth information on selecting voltage references, please see this application note:

Application Note 2879: "Selecting the Optimum Voltage Reference"

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Correcting Errors


Achieving accuracy in an application means having to be able to correct for linearization errors, component offset errors, and system noise.

As you work through the math required to calculate the operating voltages of the circuit, rounding, and measuring tolerances can quickly cause errors to build up.

For example, linearity of the devices from the load cell through the op amp and ADC will add error into the design. Fortunately today it is very easy to correct errors through digital linearization. Essentially this process uses a lookup table that provides the ideally expected digital output for every actual digital output received. The key to digital linearization is that it can remove errors that are repeatable.

Errors due to minor differences between component values used on individual circuits have to be calibrated out; usually this is a one-time adjustment. Errors due to noise have to be averaged out by taking multiple readings and presenting an average reading as the final output – ADCs that employ the delta-sigma algorithm have this type of averaging built-in.

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Highly integrated Signal Chains


Many signal chain applications can be implemented with a highly integrated AFE chip. The benefit of using a single chip or integrated signal chain IC is that it makes the design much easier, reducing component selection time, layout, and troubleshooting, while also generally providing improved specifications for an application. The integration of the input op amp with the ADC on a single chip can provide much better total system performance. The tradeoff in using this approach might be less optimization from a cost standpoint.

At a minimum, an integrated signal chain IC will include a programmable gain op amp and an ADC. Some AFE ICs also provide an input multiplexor for implementing 1 to 4 channels. The output of an AFE is traditionally serial digital with I2C and SPI being favored interface standards.

Selecting an integrated AFE is much the same as selecting a discrete signal chain, though fewer design options will be available. For example amplifier gain may be limited, and you'll most likely have to over-specify some parameters to get the overall desired performance.

Just like selecting a discrete signal chain, when choosing an AFE (for example PGA + ADC), after selecting the number of channels required, sampling rate and the nominal resolution, it is again important to carefully evaluate the specifications that have the most impact on systematic and random error (those that have the most effect on accuracy and precision). For the most part, this is thermal noise and noise free resolution.

Noise performance specifications and terms like noise-free range or effective resolution that indicate how well an AFE can distinguish a fixed input level are reported typically in the datasheets. Alternate phrasing for these applications might be noise-free counts or codes inside the range.

For thermal noise, most high-precision AFE data sheets specify input referred noise, in terms of RMS noise or peak-to-peak noise. The input referred noise is typically measured with input shorted and the noise is calculated from noise histogram plots. AFE data sheets that use Sigma Delta converters with a PGA typically report input referred noise or peak-to-peak noise in a table vs. data rate output and PGA gain.

Examples of integrated signal chain products from Maxim that are optimal for use in pressure sensor applications include: the MAX1415, a two channel 16 bit ADC with integrated PGA; and the MAX11270, a high end 24-bit ADC with PGA.

For further information:

Click on the Circuits tab to view IC circuit examples.

Click on the block diagram tab to view selected sensor related end products to view available and recommended Maxim products for by function.

Additional design information is available in the application notes referenced within this page and also listed under "Tech Docs."

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Scalable, Virtual Medical Care 

 

“We were looking to disrupt one of the biggest industries of the world—healthcare—and we’re doing it with Maxim sensors and processors.”
 -Dr. Samir Qamar, Founder and CEO, MedWand Solutions


Featured products: Maxim sensors, processors, and power management, and audio ICs

Read Their Story ›

Safeguarding Desktop PCs

 

"Security is a lot easier with Maxim."
 -Olivier Boireau, CEO, Design SHIFT


Featured products: Maxim MAX32550

Read Their Story ›
Watch testimonial ›

Enabling Independence with Dignity

 

“The key decision point on these [Maxim] ICs was the ability to get the best possible fuel gauge and battery state information.”
 -Jon Guy, VP of Engineering, UnaliWear


Featured products: MAX77818, MAX17201, MAX44009, MAX2693, MAX8969, MAX16125 dual pushbutton controllers, MAX8841 LDO voltage regulators, MAX14634 bidirectional battery switches

Read Their Story ›

Protecting PIN Pad Transactions

 

“My relationship with Maxim started many years ago. It’s a very successful one because Maxim offers a complete system, deep expertise in PCI-PTS requirements, and good local support.”
 -Jorge Ribeiro, CEO, Gertec


Featured products: MAX32550

Read Their Story ›

Fast, Modular Design System

 

“Using our revolutionary rhomb.io system, designers can meet their needs in the shortest time.”
 -Pedro Pelaez, Technical Director, TNFG


Featured products: MAX30101, MAX44005, MAX8814, voltage regulators, and optical bio analog front-end

Read Their Story ›

Making Clothes Smarter

 

“Maxim support enabled us to use these parts effectively, and we created a design that is more or less without compromise.”
 -Dylan Jackson, Lead Embedded Engineer, Spire


Featured products: MAX30110 and MAX17223

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Meeting Food Quality Criteria

 

"For our purpose, the iButton is the perfect choice because it’s so small, robust, and can be reused many times.”
 -Dr. Thijs Defraeye, Laboratory for Biomimetic Membranes and Textiles, Empa


Featured product: DS1922L

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Remote Health Monitoring

 

"Maxim believes in the wearable world and is working to bring out more technology that minimizes the real estate required.”
 -Dan Atlas, Co-founder and CTO, ATLASense Biomed


Featured products: Various Maxim ICs

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Delivering Tiny PoE Devices

 

“The Maxim peak-current-mode controller is only 3mm x 3mm. Because of its size and its high level of integration, we were able to reduce our whole module size by about half.”
 -Devesh Agarwal, CEO, Infomart


Featured products: Maxim peak-current-mode controller

Read Their Story ›

Boosting Sight for the Visually Impaired

 

“It’s all the little things that Maxim helped us with which add up to make a significant difference.”
 -Patrick Antaki, Co-Founder and President, Evergaze


Featured products: Maxim lens driver, MAX44009, MAX8834, MAX77818, Maxim overvoltage protector ICs

Read Their Story ›

Designing Flexible, Long-Range Wireless IoT Sensors

 

"Working with the Maxim team allowed us to accelerate things and, in aggregate, get ahead of schedule by nearly a month.”
 -Steve Kilts, CEO, Radio Bridge


Featured product: MAX31856

Read Their Story ›

Educating and Empowering Musicians

 

"The Maxim team has saved some mistakes that would have led to extra prototyping cycles. We expect our finished guitar will have long battery life and provide accurate data on remaining charge.”
 -Bobcat Cox, Chief Technology Officer, Zivix


Featured products: MAX14636, MAX14699, MAX8903C, MAX17260, MAX38643, and MAX38902E

Read Their Story ›

Do-It-Yourself IoT Chips

 

"The MAX77734 is a great chip for managing different power rails in wearables and space-constrained designs.”
-Omar Alnaggar, Director of Hardware Engineering, zGlue


Featured product: MAX77734

Read Their Story ›

Automating Patient Glycemic Control

 

"Maxim’s security ICs, including the DS28E83 and DS28E38 secure authenticators, enable us to ensure that the medication cartridges for our artificial pancreas will be used as intended and deliver the right dosages to the right patients.”
 -Jeff Valk, CEO, Admetsys


Featured products: DS28E83, DS28E38

Read Their Story ›

Redefining Motion Capture

 

"Maxim ICs are making our products work in a more stable and reliable manner.”
-Dr. Tristan RuoLi Dai, CTO, Noitom


Featured products: MAX17224, MAX14841E, MAX809S, MAX14527, MAX8887, DS3231M, MAX8881

Read Their Story ›

Creating High-Quality Smart Metering Solution

 

"MAX22445 helped us pass meter type tests with more stringent requirements than IEC.”
 -Joe Leong Kok Keen, Staff Design Engineer, Hardware, EDMI


Featured product: MAX22445

Read Their Story ›

Facilitating Reliable Semiconductor Production

 

"Maxim provides highly integrated functions and performance that our customers require with a reasonable price.”
 -Byoung Gi Kim, CTO, R&D, Digital Frontier


Featured product: MAX9972

Read Their Story ›

Fully Integrated Synchronous Buck Converter

Smart Building System

Building automation technology

Power management ICs help support effective building automation technologies.

36V, 600mA Mini Buck Converter with 3.5µA IQ

MAX20075

Synchronous buck with integrated high-side and low-side switches delivers up to 0.6A from 3.5V to 36V input, while using only 3.5µA quiescent current at no load.

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Peripheral Module for ±5ppm, I2C Real-Time Clock

DS3231MPMB1

Interfaces the DS3231M RTC low-cost and extremely accurate RTC to any system that utilizes Pmod™-compatible expansion ports configurable for I²C.

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Evaluation System for Precision Thermocouple to Digital Converter with Linearization

MAX31856EVSYS

Includes MAX31856PMB1 peripheral module, adaptor board for communication with the software and K-type thermocouple.

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Industry's Only ASIL-Grade Camera Protector with integrated I2C-Based Diagnostics

MAX20087

Dual/quad camera power protector ICs deliver up to 600mA load current to each of their four output channels.

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Evaluation Kit for I2C Temp Sensor with ±2°C Accuracy Low-Power I2C Temperature Sensor in WLP Package

MAX31875EVKIT

Includes GUI that provides communication over I2C with an on-board master IC.

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Serial Communications Module for Evaluation Kits

DS3900P2EVKIT

Provides bidirectional communication with 2-wire and 3-wire devices using a PC's serial port to evaluate a wide variety of ICs.

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Ultra-Small 3.2MHz Dual 500mA Versatile PMIC for Camera Modules

MAX20019

2.2MHz and 3.2MHz dual step-down converters with integrated high-side and low-side MOSFETs.

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2.2MHz Sync and Dual Step-Down Converters

MAX20014

OUT1 boosts the input supply up to 8.5V at up to 750mA, while two synchronous step-down converters operate from a 3.0V to 5.5V input voltage range and provides a 0.8V to 3.8V output voltage range at up to 3A.

Learn more ›

36V, 600mA Mini Buck Converter with 3.5µA IQ

MAX20076

Synchronous buck with integrated high-side and low-side switches delivers up to 0.6A from 3.5V to 36V input, while using only 3.5µA quiescent current at no load.

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Evaluation Kit for WPC/PMA Dual Mode Wireless Power Receiver

MAX77950EVKIT

Wireless power receiver that operates using near-field magnetic induction when coupled with a WPC or PMA transmitter and provides output power up to 12 watts.

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Evaluation Kit for 4.5V to 42V, 300mA uSLIC Power Module for 3.3V Output

MAXM15462EVKIT

Integrated power solution providing 3.3V from a wide input range of 4.5V to 42V with up to 300mA of current.

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4V to 42V, 100mA, Compact Step-Down Power Module

MAXM17532

The MAXM17532 is a step-down DC-DC power module built in a compact uSLICTM package. The MAXM17532 integrates a controller, MOSFETs, an inductor, as well as the compensation components. The device operates from an input voltage of 4.0V to 42V, supports an adjustable output voltage from 0.9V to 5.5V, and supplies up to 100mA of load current. The high level of integration significantly reduces design complexity, manufacturing risks and offers a true “plug and play” power supply solution, hence reducing the time-to-market.

Evaluation Kit for 4V to 42V, 100mA uSLIC Power Module for 5V Output

MAXM17532EVKIT

Integrated power solution providing 5V from a wide input range of 10V to 42V with up to 100mA of current.

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Arm Cortex-M4F Development Platform with Expansion Connectors for Battery-Powered Devices

MAX32620FTHR

Mbed-enabled development platform for the MAX32620 ultra-low-power microcontroller. On-board PMIC, fuel gauge, peripherals, and Pmod™ connectors enable rapid development with a small 0.9in x 2.0in board.

Evaluation Kit for the MAXM17575 5V Output Application

MAXM17575EVKIT

Integrated power solution providing 5V from a wide input range of 7.5V to 60V with up to 1.5A of current.

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Evaluation Kit for the MAXM17761 5V Output-Voltage Application

MAXM17761EVKIT

Integrated power solution providing 5V from a wide input range of 4.5V to 76V with up to 1A of current.

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Evaluation Kit for the MAXM17574 5V Output Application

MAXM17574EVKIT

Integrated power solution providing 5V from a wide input range of 10V to 60V with up to 3.0A of current.

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3µA 1-Cell/2-Cell Fuel Gauge with ModelGauge

MAX17048EVKIT

Smallest, lowest power fuel gauge with proven, voltage-only ModelGauge algorithm.

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DeepCover Secure Authenticator Demonstration Kit

MAXAUTHDEMO

Hardware/software platform that demonstrates the functional capabilities of Maxim's Secure Authenticators in genuine use-case scenarios.

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Stand-Alone ModelGauge m5 Fuel Gauges with SHA-256 Authentication EZ

MAX17201GEVKIT

Offers nonvolatile memory (NVM) for pack-side, single-cell or multi-cell applications.

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7µA 1-Cell Fuel Gauge with ModelGauge m5 EZ

MAX17055XEVKIT

Combines coulomb counting and voltage fuel gauging for highest SOC accuracy.

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18-Bit Precision Data Acquisition System

MAXREFDES74

Performs High-Speed, Precision Data Acquisition with High-Accuracy, Low-Power Data Converters.

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Evaluation Kit for the MAXM17503 in a 5V/2.5A Output Application

MAXM17503EVKIT

Integrated power solution providing 5V from a wide input range of 11V to 60V with up to 2.5A of current.

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Evaluation Kit for the MAXM17502 in a 5V/1A Output Application

MAXM17502EVKIT

Provides 5V from a 12V to 60V input and delivers up to 1A at over 84% efficiency.

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Evaluation Kit for the MAX1510

MAX1510EVKIT

Evaluates the Low-Voltage DDR Linear Regulator

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Evaluation Kit for the MAX17651

MAX17651EVKIT

Demonstrates the 60V, 100mA, Ultra-Low Quiescent Current, Linear Regulator

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16-Bit Four-Channel Analog Input Micro PLC Card

MAXREFDES61

Complete Analog Front-End for Next-Gen Ultra-Small PLCs with Isolated Power and Data.

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Isolated Power Supply Reference Design

MAXREFDES9

3.3V to 15V Input, ±15V (±12V) Output Isolated Power for Industrial and Medical Applications

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Evaluation Kit for MAXM17515 in a 1.5V/5A Output Application

MAXM17515EVKIT

Provides 1.5V from a 2.4V to 5.5V input and delivers up to 1.5A at over 91% efficiency.

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MAX30205 Evaluation System

MAX30205EVKIT

System to evaluate the MAX30205 human body temperature sensor. Includes a USB-to-I2C controller and GUI.

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Complete Evaluation Board for Ultra-Low Power Cortex-M4F Microcontroller

MAX32620-EVKIT

Power-optimized Arm® Cortex®-M4F. Optimal peripheral mix provides platform scalability. On-board bluetooth® 4.0 BLE transceiver with chip antenna.

Evaluation Board for Defibrillation/Surge/ESD Protector for Medical and Industrial Applications

MAX30034EVKIT

Fully tested board includes MAX30034 to absorb repetitive defibrillation and other high-energy pulses.

Learn more ›

Analog-Rich Arm Cortex-M3 Development Platform

MAX32600MBED

Mbed™-enabled evaluation system for the MAX32600 ultra-low-power micro with advanced analog features and hardware security. Arduino connectors and prototyping space enable rapid development.

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Cryptographic Controller for Embedded Devices Development Platform

MAXQ1061 Evaluation Kit - Evaluates: MAXQ1061

Credit card-sized socketed board allows for communication and power through a 10-pin connector to an optional host adapter.

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Smart Force Sensor

MAXREFDES82

Industrial sensor displays weight and center of mass for objects placed on the platform, up to 780g.

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Wearable, Galvanic Skin Response System

MAXREFDES73

GSR measurement detects human skin impedance under different situations.

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GPS/GNSS Ultra-Low-Noise-Figure LNA

MAX2667EVKIT

Lowest noise figure GPS LNA delivers high gain and high linearity in a tiny package.

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Evaluation Kit for the MAX44298

MAX44298EVKIT

Assesses the MAX44298 precision power monitor with very low offset for low-side monitoring.

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Evaluation Kit for GPS/GNSS Ultra-Low Current LNA

MAX2679/MAX2679B EV Kits - Evaluates: MAX2679/MAX2679B

Enables testing of RF performance with no additional circuitry. Provides 50Ω SMA connectors for inputs and outputs.

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40MHz to 4GHz Linear Broadband Amplifier

MAX2615

High-performance broadband amplifier with exceptional gain flatness in an 8-pin TDFN.

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DeepCover Embedded Security in an IoT: Public-Key Secured Data Paths

MAXREFDES155

Secures IoT systems with a public-key-based authenticated data chain from a protected sensor node to a web server.

24-Bit Weigh Scale

MAXREFDES75

High-accuracy weigh scale reference design performs small-signal 24-bit measurements, and produces a weighted 0 to 10V output proportional to the input signal.

Learn more ›

Evaluation Kit for the MAX44284

MAX44284EVKIT

Demonstrates the high-precision real-time current monitoring of the MAX44284 current-sense amplifier.

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High-Precision, Long-Battery Life Heat/Flow Meter

MAXREFDES70

Low-power, ultrasonic time-of-flight reference design for high-accuracy liquid flow measurement.

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Arm Cortex-M4F Development Platform Optimized for Bluetooth®-Based Battery-Powered Devices

MAX32630FTHR

Mbed-enabled development platform for the MAX32630 ultra-low-power microcontroller. On-board PMIC, Bluetooth, and peripherals enable rapid development with a small 0.9in x 2.0in board.

Learn more ›

Health Sensor Platform

MAXREFDES100

mbed-enabled sensor platform for rapid evaluation of wearable health and fitness solutions. Measures motion, temperature, biopotential, pulse oximetry, and heart rate.

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4–20mA 2-Wire Current-Loop Sensor

MAXREFDES15

Ultra-low power, high-accuracy loop-powered sensor transmitter that connects to any standard PT1000 resistance sensor and converts the linearized temperature to a 4–20mA current signal.

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4–20mA Loop-Powered Temperature Sensor with Hart

MAXREFDES16

2-wire, loop-powered smart temperature transmitter solution for temperature measurement. Works with any type of RTD, from PT100 to PT1000.

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Isolated 24V to 3.3V 33W Power Supply

MAXREFDES121

Isolated, industrial power-supply reference design with an efficient active-clamp topology design with 24V input.

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ECT/EPT Current Fault Sensor

MAXREFDES38

High-accuracy analog front-end for ECT/EPT low-power sensors to increase precision of grid health data and fault location.

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Universal Input Micro PLC

MAXREFDES67

Universal analog input accepts analog voltage and current, all RTD configurations and thermocouples to collect high-accuracy analog data using a single architecture.

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MAXREFDES150: POCKET IO PLC DEVELOPMENT PLATFORM

MAXREFDES150

Industry 4.0, the fourth revolution in manufacturing and process automation, poses a considerable challenge for PLC design engineers who are required to pack more functionality into enclosures that keep getting smaller.

Learn more ›

Isolated, 24V to 12V, 20W Power Supply Reference Design

MAXREFDES113

Compact, 24V input, flyback converter module with 12V at 1.6A output and pre-qualified transformers.

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Non-isolated 24V to 5.1V, 20W Power Supply

MAXREFDES125

High-efficiency, 20W power supply for industrial and broad power-supply applications.

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Isolated, 24V to 5V, 10W Power Supply Reference Design

MAXREFDES114

Compact, 24V input, forward converter module with 5V at 2A output and pre-qualified transformers.

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Heart-Rate and Pulse-Oximetry Monitor

MAXREFDES117

A low power, optical heart-rate module complete with integrated red and IR LEDs, and a power supply.

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Dual-Channel Current Sense Peripheral Module

MAXREFDES77

Interfaces the MAX44285 dual-channel high-side current-sense amplifier to any system that utilizes Pmod™-compatible expansion ports.

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Non-isolated 5V/2.5A PoE Powered Device Power Supply

MAXREFDES98

This non-isolated PoE powered device design combines a PD controller and buck converter on a 1.2 in2 board. It accepts 36V to 57V input with 5V output up to 2.5A.

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Power Amplifier Biasing through MAX11300 PIXI IC

MAXREFDES39

This design uses a MAX11300 programmable mixed-signal I/O (PIXI™), to bias and monitor a power amplifier for an RF base station.

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IO-Link® 16 Channel Digital Input Hub

MAXREFDES36

This IO-Link® 16-channel digital input reference design includes a 16-bit micro with IO-Link device stack and fits on a small 53.75mm x 72mm PCB.

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Pocket IO™ PLC Development Platform

MAXREFDES150

Integrates 30 industrial IOs for lower heat dissipation and faster throughput in less than ten cubic inches.

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Secure Authentication Design with 1-Wire ECDSA and Xilinx Zynq SoC

MAXREFDES44

Protects IP and authenticates peripherals to Xilinx Zynq™ FPGAs.

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SHA-256 Secure Authentication Design

MAXREFDES34 (Alcatraz)

This design implements SHA-256 authentication function using the 1-Wire protocol.

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Turnkey PCI-PTS Mobile POS (MPOS) Terminal

MPOS-STD2

A complete mPOS solution, pre-evaluated by security labs for compliance with PCI-PTS 4.0 standards.

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Non-isolated 12V/1A PoE Powered Device Power Supply

MAXREFDES108

This non-isolated PoE powered device design combines a PD controller and buck converter on a 1.2 in2 board. It accepts 36V to 57V input with 12V output up to 1A.

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Isolated 24V to 5V, 2W Flyback Power Supply

MAXREFDES111

Industrial power-supply reference design features an efficient flyback topology with 24V input, and a 5V output at 2W of power (0.4A)

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Smart Force Sensor

MAXREFDES82

Operates as Both a Weigh Scale and a Touch Interface with Force Sensing for Industrial Applications.

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3.3V and 5V PoE Powered Device

MAXREFDES31 (Pasadena)

This design is an IEEE 802.3af/at compliant. Powered Device (PD). In addition to regulating power received over Ethernet, device can also be powered from a wall adapter.

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4-Port IO-Link Master

MAXREFDES79

4-Port IO-Link Master Reference Design Description: Four IO-Link ports allow for simultaneous testing of four different sensors or actuators.

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Security Short Subjects: Asymmetric Authentication Details

Review details of asymmetric key cryptography including ECDSA (Elliptic Curve Digital Signature Algorithm) and learn how it is used in asymmetric key-based authentication. See why asymmetric key authentication is vital for applications such as communication, IP protection, and medical device authentication.

Learn more: Secure Authentication ›

Security Short Subjects: Symmetric Authentication Details

Examine more of the details of symmetric key cryptography for authentication applications including the concepts of nonce, random numbers, and secure hash. You’ll learn how to use secure hash for authentication.

Learn more: Secure Authentication ›

Security Short Subjects: Asymmetric Authentication

Learn how asymmetric key cryptography is used for authentication and review the concepts of key generation and encryption. You will learn more about digital signatures and how they are used for secure authentication.

Learn more: Secure Authentication ›

Security Short Subjects: Secure Firmware Download for Embedded Systems

Learn how firmware can be securely downloaded to a remote system and see how ECDSA key pair generation and SHA-256 algorithm are used for this purpose.

Learn more: Secure Authentication ›

Security Short Subjects: Symmetric Cryptography

Learn the basics of symmetric cryptography and how it is used to encrypt and decrypt data. Examine concepts of plaintext and cyphertext and see how a secret key sends and receives encrypted data.

Learn more: Secure Authentication ›

Security Short Subjects: Asymmetric Cryptography

Learn the basics of asymmetric key cryptography and see how it is used to encrypt and decrypt data. Review the concepts of public and private keys and learn how to use a key pair to send and receive encrypted data. The differences between symmetric and asymmetric key are also discussed along with the concept of a cipher suite.

Learn more: Secure Authentication ›

Security Short Subjects: The Basics of Authentication

Examine the basics of secure authentication and discover why one-way authentication is not always ideal. You’ll learn how identification and secure authentication work together to provide better cybersecurity.

Learn more: Secure Authentication ›

Security Short Subjects: Symmetric Key Authentication

We’ll examine the use of symmetric key cryptography for authentication applications and learn more about the concepts of shared keys, Nonce, and secure hash.

Learn more: Secure Authentication ›

Provide a Safe Power Path from the Car Battery to Remote Cameras

 

Provide a Safe Power Path from the Car Battery to Remote Cameras
Transmission of power and data on long coaxial cable bundles requires protection from various short-circuit modes (STG, STB). Remote cameras are small and require space- and power-efficient solutions. The MAX20039 buck-boost converter is an effective supply for power-over-coax. The MAX20087 quad power camera pro­tector is a compact, efficient protection IC. The dual MAX20019 cascade buck converter configuration delivers high efficiency in a small space. This triplet of ADAS ICs effectively provides power and protection to the path from the car battery to the remote cameras.

Featured parts: MAX20039, MAX20040, MAX20087, MAX20019
Read more ›

Monthly Call August 2019 Comm and IO Link

Monthly Call August 2019 Comm and IO Link

Monthly Technical Training August 2019 CPG Update lr 2

Monthly Technical Training August 2019 CPG Update lr 2

How to Efficiently Power Your Smart Gas/Water Meter

 

How to Efficiently Power Your Smart Gas/Water Meter
Smart meters operate for 10 to 20 years of time remotely and untethered, relying on powerful non-rechargeable lithium-thionyl-chloride batteries. They present a complex power-management design problem with energy sources that include batteries and supercapacitors. In this design solution, we discussed the challenges of powering a smart-meter wireless RF power amplifier. The solution is based on the MAX8815A, an efficient, low shutdown current and compact boost converter, which delivers the required peak current with the help of a supercapacitor.

Featured part: MAX8815A
Read more ›

Introduction to the MAX40077 MAX40078 MAX40089 Single/Dual/Quad Ultra-Low Input Bias Current, Low Noise Amplifiers

This video provides an introduction to the MAX40077/MAX40078/MAX40089 are wide band, low-noise, low-input bias current operational amplifiers that offer rail-to-rail outputs and single-supply operation from 2.7V to 5.5V.

Introduction to the MAX40242 20V, Low Input Bias-Current, Low-Noise, Dual Op Amplifier

This video provides an introduction to the MAX40242 which provides a combination of high voltage, low noise, low input bias current in a dual channel and features rail-to-rail at the output.

Ultra-Low-Power, Stereo Audio Codec

MAX9867

Includes stereo differential microphone inputs integrated with an auxiliary battery-measurement ADC and capacitorless headphone amps.

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The Ins and Outs of Voltage Supervisor ICs

Low-Power Supervisory Circuit with Battery Backup.

The Ins and Outs of Voltage Supervisor ICs

The MAX16140 4-bump WLP Package.

[Distributor] Introduction to the MAX17634A, MAX17634B and MAX17634C 4.5V to 36V, 4.25A, High-Efficiency, Synchronous Step-Down DC-DC Converter

This video provides an introduction to Maxim's 4.5V to 36V, 4.25A, High-Efficiency, Synchronous Step-Down DC-DC Converter - the MAX17634A, MAX17634B and MAX17634C.

[Internal] Introduction to the MAX17634A, MAX17634B and MAX17634C 4.5V to 36V, 4.25A, High-Efficiency, Synchronous Step-Down DC-DC Converter

This video provides an introduction to Maxim's 4.5V to 36V, 4.25A, High-Efficiency, Synchronous Step-Down DC-DC Converter - the MAX17634A, MAX17634B and MAX17634C.

[Internal] Introduction to the MAX17576 4.5V to 60V, 4A, High-Efficiency, Synchronous Step-Down DC-DC Converter with Internal Compensation

This video provides an introduction to Maxim's 4.5V to 60V, 4A, High-Efficiency, Synchronous Step-Down DC-DC Converter with Internal Compensation - the MAX17576.

[Distributor] Introduction to the MAX17576 4.5V to 60V, 4A, High-Efficiency, Synchronous Step-Down DC-DC Converter with Internal Compensation

This video provides an introduction to Maxim's 4.5V to 60V, 4A, High-Efficiency, Synchronous Step-Down DC-DC Converter with Internal Compensation - the MAX17576.

Boosted Class D Amplifier with Automatic Level Control

MAX98502

Operates at 2MHz and delivers constant 2.2W output power without collapsing battery.

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Ultra-Low Power Stereo Audio Codec

MAX98090

High-performance, ultra-low power consumption, and small footprint make it ideal for portable applications.

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Mono 3.2W Smallest Class D Amplifier

MAX98304

0.95mA IQ at 3.7V (1.2mA at 5V), offers five selectable gain settings set by a single gain-select input (GAIN) in 1mm x 1mm package.

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Boosted Class-D Amplifier with Integrated Dynamic Speaker Management

MAX98390

Dynamic Speaker Management (DSM) provides louder and deeper audio while increasing micro speaker sound clarity.

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Tiny, Low-Cost, PCM Class D Amplifiers with Class AB Performance

MAX98357A

Easy-to-use, low-cost, digital PCM input amplifier provides industry-leading Class AB audio performance with Class D efficiency.

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High-Sensitivity Pulse Oximeter and Heart-Rate Sensor

MAX30102

Pulse Oximeter and Heart-Rate Biosensor for Wearable Health

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1A Linear Li+ Battery Charger with Integrated Pass FET and Thermal Regulation in 2mm x 2mm TDFN

MAX8808X/Y/Z

Simplest and Smallest Charging Solution for Hand-Held Equipment

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High-Efficiency Buck-Boost Regulator

MAX77801

The MAX77801 is a high-current, high-efficiency buck-boost targeted to mobile applications that use a Li-ion battery or similar chemistries. The MAX77801 utilizes a four-switch H-bridge configuration to support buck and boost operating modes. Buck-boost provides 2.60V to 4.1875V of output voltage range and up to 2A output current.

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Wearable Charge Management Solution

MAX14676

This battery-charge-management solution includes a linear battery-charger with 28V tolerant input, smart power control, and several power-optimized peripherals. A boost regulator with 5V to 17V output, and 3 programmable current sinks can drive a variety of LED configurations.

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Industry's Smallest 1.55A 1-Cell Li+ DC-DC Charger

MAX8971

This device charges quickly with minimal heat generation. It charges from variety of adapters and maximizes Safety featuring JEITA-compliant temperature monitoring and withstands transient inputs up to 22V.

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ModelGauge m3 Fuel Gauge

MAX17047/MAX17050

These battery fuel gauges provide excellent short-term and long-term accuracy by using both coulomb counting and voltage-based ModelGauge algorithms. ModelGauge m3 cancels offset accumulation error in the coulomb counter while providing better short-term accuracy than any purely voltage-based fuel gauge.

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USB/AC Adapter, Li+ Linear Battery Charger

MAX8606

This complete 1-cell Li+ battery charge-management IC operates from either a USB port or AC adapter. It integrates a battery disconnect switch, current-sense circuit, PMOS pass element, and thermal-regulation circuitry, while eliminating the external reverse-blocking Schottky diode, to create a simple and small charging solution.

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3µA 1-Cell Fuel Gauge with ModelGauge

MAX17048

Maximize Battery Run-Time with Industry's Smallest Size, Lowest Power Fuel Gauge

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7µA 1-Cell Fuel Gauge with ModelGauge m5 EZ

MAX17055

ModelGauge m5 EZ Eliminates Battery Characterization

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7µA 1-Cell Fuel Gauge with ModelGauge m5 EZ

MAX17055

Low IQ fuel gauge for precision measurements of current, voltage, and temperature.

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Wearable Power Management Solution for Primary Cells

MAX20310

Wearable Power Management for Single-Cell Zinc Air, Silver Oxide, and Alkaline Battery Architectures

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Wearable Charge-Management Solution

MAX14690

Extends Battery Life of Wearable Electronics

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WPC/PMA Dual-Mode Wireless Power Receiver

MAX77950

Power receiver IC provides precision output current and voltage-sensing scheme over entire load range.

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Secure Authenticator with SHA-256 Coprocessor

DS2465

Secure authenticator features 1-Wire master with SHA-256 and memory functionality.

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Secure Authenticator with 1-Wire SHA-256 and 512-Bit User EEPROM

DS28E15

Secure authenticator features factory-programmed, unique 64-bit ROM identification number.

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Secure Authenticator with Elliptic-Curve Public-Key Authentication

DS28C36

Secure authenticator features true random number generator, secured EEPROM, and ROM ID

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Ultra-Low-Power PMIC with 3-Output SIMO

MAX77650

PMIC features SIMO buck-boost regulator and a 150mA LDO.

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Secure Coprocessor with Elliptic-Curve Public-Key Authentication

DS2476

Secure ECDSA and HMAC SHA-256 coprocessor companion to the DS28C36.

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Dual Input, Power Path, 3A Switching Mode Charger

MAX77818

High-performance companion PMIC with ModelGaugeTM m5 fuel gauge technology.

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[Internal] Introduction to the MAX17630 and MAX17631 4.5V to 36V, 1A and 1.5A, High-Efficiency, Synchronous Step-Down DC-DC Converters

This video provides an introduction to Maxim's high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated MOSFETs - the MAX17630 and MAX17631.

[Distributor] Introduction to the MAX17630 and MAX17631 4.5V to 36V, 1A and 1.5A, High-Efficiency, Synchronous Step-Down DC-DC Converters

This video provides an introduction to Maxim's high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated MOSFETs - the MAX17630 and MAX17631.

Why Shrinking Sizes of RTCs Is Good News for Your Portable Designs

Layout of crystal with integrated capacitors (left) and two integrated capacitors with crystal equivalent circuit (right).

Smartwatch clock

Small, low-power RTCs are ideal for compact, portable designs.

[Internal] Introduction to the MAX14430-36 Fast Low Power Digital Isolators

This video provides an introduction to the MAX14430-36, four-channel, fast, low-power, 5kV(RMS) digital isolators.

[Distributor] Introduction to the MAX14430-36 Fast Low Power Digital Isolators

This video provides an introduction to the MAX14430-36, four-channel, fast, low-power, 5kV(RMS) digital isolators.

Introduction to the MAX17301 and MAX17311: 1-Cell ModelGauge m5 EZ Fuel Gauge with 2-Level Protector and SHA-256 Authentication

This video provides an introduction to Maxim’s 1-Cell ModelGauge m5 EZ Fuel Gauge with 2-Level Protector and SHA-256 Authentication—the MAX17301 and MAX17311.

How to Extend the Run-Time of Your DSLR/DSLM Camera Design

 

How to Extend the Run-Time of Your DSLR/DSLM Camera Design
A POL system approach to power distribution within a DSLR/DSLM digital camera saves power by minimizing the PCB traces losses. Scalability is another POL advantage, as a number of small buck regulators can be added or subtracted as needed, depending on the compexity of the digital camera. Accordingly, we propose a high-efficiency, compact buck converter as the basic building block for the digital camera POL architecture.

Featured part: MAX77503
Read more ›

Introduction to the DS28C40 Deep Cover Automotive I2C Authenticator

This video provides an introduction to Maxim’s Secure Authenticator for Automotive – the DS28C40.

Introduction to the MAXM15062-63-64-65-66-67-MAXM15462-63-64-65-66-67-MAXM17901-03-04-05-06 4.5V to 24V, 42V, 60V 300mA Himalaya uSLIC™ Step-Down Power Modules

This video provides an introduction to Maxim’s 300mA Himalaya uSLIC step-down power modules.

Introduction to the MAX31341B Low-Current, Real-Time Clock with I2C Interface and Power Management

This video provides an introduction to Maxim’s Low-Current, Real-Time Clock with I2C Interface and Power Management – the MAX31341B.

Introduction to the MAX17302 MAX17312 1-Cell ModelGauge m5 EZ Fuel Gauge with Protector and SHA-256 Authentication

This video provides an introduction to the MAX17302/MAX17312, a 24μA IQ stand-alone pack-side fuel gauge IC with protector and SHA-256 authentication for 1-cell lithium-ion/polymer batteries.

[Internal] Introduction to the MAX32570 Low Power ARM Cortex-M4 Microcontroller for Secure Applications

This video provides an introduction to Maxim's Low Power ARM Cortex-M4 Microcontroller for Secure Applications - the MAX32570.

[Distributor] Introduction to the MAX32570 Low Power ARM Cortex-M4 Microcontroller for Secure Applications

This video provides an introduction to Maxim's Low Power ARM Cortex-M4 Microcontroller for Secure Applications - the MAX32570.

High-Efficiency Buck-Boost Regulator with 5A Switches

MAX77816

98% efficiency with I2C interface for single-cell Li-ion battery-powered applications.

20A User-Configurable Quad-Phase Buck Converter

MAX77812

91% efficiency with 3.4MHz high-speed I2C and 30MHz SPI interface, optimized for single-cell battery-powered applications.

 

[Distributor] Technical Training Basic 2019 Power Protection

"Technical Basic Training course presenting the basic of what system protection is, why it is needed, and the current challenges for system engineer trying to implement full system protection. This is a newer version of a previous one"

[Sales Rep] Technical Training Basic 2019 Power Protection

"Technical Basic Training course presenting the basic of what system protection is, why it is needed, and the current challenges for system engineer trying to implement full system protection. This is a newer version of a previous one"

[Internal] Technical Training Basic 2019 Power Protection

"Technical Basic Training course presenting the basic of what system protection is, why it is needed, and the current challenges for system engineer trying to implement full system protection. This is a newer version of a previous one"

[Distributor] Technical Training Basic 2019 - Offset and Gain Error

Technical Basic Training course presenting the causes of Offset and Gain Errors in operational amplifiers and other devices in a typical signal chain and how to mitigate these errors through calibration.

[Sales Rep] Technical Training Basic 2019 - Offset and Gain Error

Technical Basic Training course presenting the causes of Offset and Gain Errors in operational amplifiers and other devices in a typical signal chain and how to mitigate these errors through calibration.

[Distributor] Technical Training Basic 2019 ESD Tutorial

Technical Basic Training course presenting an overview of Electrostatic Discharge and how to protect the integrated circuits from that phenomenon.

[Sales Rep] Technical Training Basic 2019 ESD Tutorial

Technical Basic Training course presenting an overview of Electrostatic Discharge and how to protect the integrated circuits from that phenomenon.

[Distributor] Technical Training Basic 2019 - Frequency Synthesizer

Training course presenting an overview of Frequency Synthesizer using Phase Locked Loop method.

[Sales Rep] Technical Training Basic 2019 - Frequency Synthesizer

Training course presenting an overview of Frequency Synthesizer using Phase Locked Loop method.

[Internal] Monthly Call - June 2019 - Audio Solutions

This is a self-paced video course based on the recording of a webinar session arranged by Kate Shamberger and Duc Ngo about Maxim Mobilty BU and focus on Audio Solutions. Audio Class-D speaker amplifiers are depected with MAX98357, MAX98360...

[Internal] Monthly Technical Call July 2019 - HSDC

TTS organized monthly BU technical products and solutions updates. This session is specifically about Maxim high speed data converters. Presentation is made by Seema Venkatesh from the group Timing and Datacom inside the Maxim CPG BU. High speed DAC with speed up to 1.5Gsps and RFDAC up to 4.9Gsps high speed ADC.

[Internal] Cloud and Data Center - PMBus System Overview June2019

"CDC Business unit gives an overview about Maxim approach for intelligent integrated Power supply sequencing for complex PS system for FPGA. Speech is given by Anubhav Sinha. Items covered include : Power Supply Control, Sequencing, Margin, Power Supply Monitoring, Voltage Monitoring, Current Monitoring, Thermal Monitoring with local Temp Sensor and Interface to External Temp Sensors and Fault Detection and Logging with Store system fault history Industry Standard Interface. Focus products are MAX34460, MAX34461, MAX34463, MAX34451"

[Internal] USBC training part 2 - Monday 24 June 2019

"This is the second part of the Maxim USB-C charger solutions introduction with highlights on the current market and technical status on USB charging and what Maxim is doing in this area. Maxim solutions and suitable parts are shown with their key characteristics and features"

[Internal] USBC training part 1 - Monday 3 June 2019

"This is the first part of the Maxim USB-C charger solutions introduction with highlights on the current market and technical sttaus on USB charging and what Maxim is doing in this area. USB terminologies and basic standards about connectors and cables in use are also highlighted"

[Internal] RTM Call 24May2019

Monthly call for Distri and maxim field on latest Release to Market products. Recently or close to be released products are announced and promoted with main features and comparisons versus competition. In this May 2019 session, matters presented by Chrsitian Gruber include keyPAD tool updates,industrial power in SMPS, LDO, cable and RF products in ISM bands, PA linearizer, mobile charger, USB-C charger, OVP protection, fuel gauge, isolator, PMIC, IO-Link, data security and authenticator

[Internal] Maxim Q2 CY19 New Products Updates Call

This is a regular skype presenttaion dedicated for EMEA Distribution field. Information about the latest new released products are promoted with key specifications and advantages versus competition. A short hifgglight on maxim organization is also made. One will find mainly CPG products including Power, RF, signal path, interface circuits with collaterals like evkit, keyPAD active bloc diagram, documentation and useful contacts in Maxim

[Distributor] Technical Training Basic 2019 Understanding DAC Specifications

Technical Basic Training course explaining the key specifications of Digital to Analog converters.

[Sales Rep] Technical Training Basic 2019 Understanding DAC Specifications

Technical Basic Training course explaining the key specifications of Digital to Analog converters.

[Internal] What is ASIL and how Core Automotive can help achieve ASIL - Simplified version

TTS Monthly call recording converted into MaximU with quiz. Content is about achieving functional safety with core automotive products. The presentation is made by Veronique Rozan in June 2018. Content is made in 4 chapters : 1 on ISO26262, 2 on Maxim positioning, 3 on defining ASIL requirements and 4 on achieving ASIL B,C or D

[Internal] USB-C Charger Part 3 - only for Maxim

"This is the third part of a serie of 3 courses dedicated to Maxim USB-C charging solution. The third part is for Maxim people only. The presentation include roadmap and confidential info. The items include :USB-C PD Controller MAX77958: USB-C PD Controller with D+/D- mux, moisture detection, and corrosion prevention (sampling now) 1S Buck Charger MAX77860: 14Vin/3Aout Buck Charger with CC Detection for 1S Batteries (MP) MAX77818: 13.4Vin/3Aout Buck Charger with Fuel Gauge for 1S Batteries (MP) MAX77975_76: 19Vin/3.5/5.5Aout 1S Li+ Buck Charger with PowerPath (samples in Nov 2019) MAX77751: 14Vin/3Aout 1S Li+ Buck Charger with PowerPath (samples in Aug 2019) 2S/3S Buck-Boost Charger and Converter MAX77960/1: 24Vin, 6A/3Aout Buck-Boost Charger for 2S-3S Li+ Batteries (sampling now) MAX77930/1: 24Vin, 6A/3Aout Buck-Boost DC-DC Converter (sampling now) 2S to 1S Converter MAX77932: 8Aout Switched Capacitor Converter (sampling now) Wide Vin, Low Iq Buck Converter MAX77596: 24V, 300mA, Buck Converter with 1.1μA Iq (MP)"

Introduction to the MAX20039-40 2V to 36V, 2.1MHz, 0.6A/1.2A Automotive Buck Boost Converters

This video provides an introduction to Maxim's 2V to 36V, 2.1MHz, 0.6A/1.2A Automotive Buck Boost Converters - the MAX20039-40.

[Internal] Curriculum on AMADIS Agnos

"Set of 3 self-paced training videos generated by AMADIS for Maxim field people (Sales and FAEs) to be informed about AMADIS activities and products overview in the first course, followed by a second part more dedicated on Agnos Sales strategy with promotion, support and arguments information in front of future customers involved in payment systems "

[Internal] AMADIS training part 2 of 2 - Agnos Sales Strategy

This is the second part of the AMADIS - Agnos activity and products overview. The first part was an intro to AMADIS company and Agnos products and its features. This second part of the training is focus on Agnos Sales Strategy and give highlights to Maxim field on arguments to promote and sell the Agnos sofware prodcuts as an extension of Maxim hardware solutions.

[Internal] AMADIS Agnos product Overview May 2019

Short high level overview on Agnos product from Amadis. It is a hardware agnostic software that can be promoted to customers involved in financial transaction applications. Agnos is well suited for modern payment systems involving EMV certification and implementation. This is the first part of the AMADIS overview training

[Internal] CDC Strategic and Roadmap Jan2019

CDC Strategic and Roadmap Jan2019 presented by Achyut. Activities of the BU are highlighted with focus area and expectations

[Internal] Course 2 Star Products and KeyPAD updates June July 2018

Monthly call recording dedicated to Maxim Star products promotion and KeyPAD update on June-July 2018. Content covers multi-sockets design-in with focus aboutr end equipments Home Security sensing, medival Dialysis, data acquisition system and to products Delta-sigma ADC (MAX11261)

[Sales Rep] Technical Training - Basic Curriculum 2019

This curriculum contains six courses: DAC Specifications, Frequency Synthesizers, ESD, Power Protection, NFC/RFID, Signal Chain Offset and Gain Errors

[Distributor] Technical Training - Basic Curriculum 2019

This curriculum contains six courses: DAC Specifications, Frequency Synthesizers, ESD, Power Protection, NFC/RFID, Signal Chain Offset and Gain Errors

[Internal] BU Strategy Roadmap FY19 - IH and CDC

BU strategic overview and roadmap on current solutions and parts and on coming products. As decided in last FAE Council, there are a serie of webinars scheduled quarterly where every BU come to present in the calls. This one of nearly 2 hours is dedicated for the business units Industrial-and-Healthcare and CDC.

Introduction to the MAX20026 MAX20026S Automotive Quad, Low-Voltage Step-Down DC-DC converters with Low-Noise LDO

This video provides an introduction to Maxim's Automotive Quad, Low-Voltage Step-Down DC-DC converters with Low-Noise LDO - the MAX20026 and MAX20026S.

[Internal] Technical Training Basic 2019 - Offset and Gain Error

Technical Basic Training course presenting the causes of Offset and Gain Errors in operational amplifiers and other devices in a typical signal chain and how to mitigate these errors through calibration.

[Internal] Technical Training - Basic Curriculum 2019

This curriculum contains six courses: DAC Specifications, Frequency Synthesizers, ESD, Power Protection, NFC/RFID, Signal Chain Offset and Gain Errors

[Internal] Maxim Experts Program - Basic Curriculum (2016)

Maxim Expert Program - Advanced Curriculum containing six courses: EE-Sim DC-DC Tool Overview, Real Time Clocks, RF & Wireless, Secure Authentication, Temperature Sensors, Thermal Management.

[Distributor] Maxim Experts Program - Advanced Curriculum (2016)

Maxim Expert Program - Advanced Curriculum containing six courses: EE-Sim DC-DC Tool Overview, Real Time Clocks, RF & Wireless, Secure Authentication, Temperature Sensors, Thermal Management.

MAX22500E eye diagram

MAX22500E is the industry’s fastest RS-485 transceiver with pre-emphasis for robust communications over longer cables.

MAX22500E

The MAX22500E RS-485 transceiver IC supports a data rate of 100Mbps over 10m of Cat5e cable.

Industrial Control System

RS-485 is an ideal communications standard for noisy industrial environments.

Introduction to the MAXM86161 Single-Supply Integrated Optical Module for HR and SpO2 Measurement

This video provides an introduction to Maxim’s Single-Supply Integrated Optical Module for heart rate and SpO2 Measurement – the MAXM86161.

Introduction to the MAX38904A/B/C/D 2A Low Noise LDO Linear Regulator in TDFN

This video provides an introduction to Maxim's Low Noise LDO Linear Regulator in TDFN - the MAX38904A MAX38904B MAX38904C MAX38904D.

Introduction to the MAX30208 Low-Power, High-Accuracy Digital Temp Sensor

This video provides an introduction to Maxim’s low-power, high-accuracy digital temp sensor – the MAX30208.

Introduction to the MAX25600 Synchronous High Voltage 4 Switch Buck Boost LED Controller

This video provides an introduction to the MAX25600, a synchronous 4-switch buck-boost LED driver controller.

Enabling a Healthier World with the MAX30101 Biosensor Solution and Raku-Raku Smartphone

Fujitsu Connected Technologies Limited has added a healthcare functionality to its Raku-Raku Smartphone, which is ideal for first-time smartphone users. The company expects smartphones to make seniors more aware of their heath and to provide clues to improve their living habits. With analysis of pulse wave data, which can be obtained from the MAX30101 pulse-oximeter and heart-rate sensor, the company created a feature to diagnose the age of blood vessels and to assess stress levels.

Learn More: MAX30101 ›

ProtoCentral MAX86150 breakout board

Quickly prototype mobile health applications with breakout boards like ProtoCentral’s MAX86150 board.

ProtoCentral MAX30003 breakout board

Breakout boards like ProtoCentral’s MAX30003 product help you quickly evaluate and test-drive the MAX30003 biopotential AFE.

Introduction to the MAX17303 MAX17313 1-Cell ModelGauge m5 EZ Fuel Gauge with Protector

This video provides an introduction to Maxim's 1-Cell ModelGauge m5 EZ Fuel Gauge with Protector - the MAX17303 and MAX17313.

Introduction to the MAX20029 MAX20029B MAX20029C Automotive Quad/Triple Low Voltage Step-Down DC-DC converters

This video provides an introduction to the MAX20029/MAX20029B/MAX20029C power-management ICs (PMICs) which integrate four low-voltage, high-efficiency, step-down DC-DC converters.

[Distributor] Introduction to the MAX22520 One-Time Programmable (OTP) Industrial Sensor Output Driver

This video provides an introduction to Maxim's One-Time Programmable (OTP) Industrial Sensor Output Driver - the MAX22520.

[Internal] Introduction to the MAX22520 One-Time Programmable (OTP) Industrial Sensor Output Driver

This video provides an introduction to Maxim's One-Time Programmable (OTP) Industrial Sensor Output Driver - the MAX22520.

[Distributor] Introduction to the MAX22515 IO-Link Transceiver with Integrated Protection

This video provides an introduction to Maxim's IO-Link Transceiver with Integrated Protection - the MAX22515.

[Internal] Introduction to the MAX22515 IO-Link Transceiver with Integrated Protection

This video provides an introduction to Maxim's IO-Link Transceiver with Integrated Protection - the MAX22515.

MAX17263

How to Select and Configure a Battery Fuel Gauge for Your Portable System

Travis explains how to choose a battery fuel gauge and battery characterization model. He demonstrates the ModelGauge m5’s EZ Configuration GUI which does not require characterization for most battery chemistries, using the MAX17263GEVKIT.

Learn More › MAX17263

[Distributor] Introduction to the MAX38907 MAX38908 MAX38909 2A/4A High Performance LDO Linear Regulator

This video provides an introduction to Maxim's 2A/4A High Performance LDO Linear Regulator - the MAX38908 product family.

[Internal] Introduction to the MAX38907 MAX38908 MAX38909 2A/4A High Performance LDO Linear Regulator

This video provides an introduction to Maxim's 2A/4A High Performance LDO Linear Regulator - the MAX38908 product family.

Suhel Dhanani, business development director, Industrial & Healthcare Business Unit, at Maxim

Small, efficient ICs help drive the industrial IoT.

Industrial IoT application

Small, efficient, and rugged ICs are critical components in an IIoT application.

[Internal] Introduction to the MAX77501 110VPK-PK High Efficiency Piezo Haptic Actuator Boost Driver

This video provides an introduction to Maxim’s first high voltage high efficiency piezo haptic driver – the MAX77501.

[Distributor] Introduction to the MAX77501 110VPK-PK High Efficiency Piezo Haptic Actuator Boost Driver

This video provides an introduction to Maxim’s first high voltage high efficiency piezo haptic driver – the MAX77501.

[Internal] Introduction to the MAX2223 Ultra-Wideband, Direct-Conversion, L-Band Satellite Tuner

This video provides an introduction to Maxim’s Ultra-Wideband, Direct-Conversion, L-Band Satellite Tuner – the MAX2223.

[Distributor] Introduction to the MAX2223 Ultra-Wideband, Direct-Conversion, L-Band Satellite Tuner

This video provides an introduction to Maxim’s Ultra-Wideband, Direct-Conversion, L-Band Satellite Tuner – the MAX2223.

Simon Wu

Maxim Summer Interns Showcase Their Technical Talents

Maxim’s summer 2019 interns showcase their talents in areas including electrical engineering, finance, marketing, and legal.

Naina Murthy