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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Counterfeit after-market automotive parts can ruin the ADAS driving experience. Our DeepCover® secure authenticators, such as the DS28C40, make it impossible for third-party manufacturers to clone critical components for after-market auto repairs.

Learn more: DS28C40 ›

Infrared-Based Gesture Sensor

MAX25205

Data-acquisition system detects hand swipe and finger rotation gestures.

Learn more ›

Blood Pressure Monitoring from Wearable Device

Wearable medical devices can be used by patients at home to monitor blood pressure.

Xilinx Artix-7 FPGA Power Solution

 

Cost- and Efficiency-Optimized Power Solutions for Artix-7 Reference Designs

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Xilinx Spartan-7 FPGA Power Solution

 

Cost- and Efficiency-Optimized Power Solutions for Spartan-7 Reference Designs

Learn more ›

Introduction to the MAX15162 8V to 60V Smart Dual 1.5A Circuit Breaker with Accurate Current Monitoring  

This video provides an introduction to Maxim's 8V to 60V Smart Dual 1.5A Circuit Breaker with Accurate Current Monitoring - the MAX15162.

Introduction to the MAX18066 MAX18166 High-Efficiency, 4A, Step-Down DC-DC Regulators with Internal Power Switches

This video provides an introduction to Maxim's High-Efficiency, 4A, Step-Down DC-DC Regulators with Internal Power Switches - the MAX18066 MAX18166.

Maxim’s Automotive ICs Get You There First

With Maxim’s extensive automotive portfolio, you can build cars that deliver what today’s consumer demands: safety, security, power, and performance. See how our advanced automotive ICs, designed from the ground up, meet tough design challenges for ADAS, infotainment, power management, lighting, EV powertrain, and more.

Learn more › Automotive Solutions

Ultra-Low-Power Optical Data Acquisition System for Pulse Oximetry and HR Detection

MAX86170B

Features best-in-class SNR for measuring hydration, muscle, and tissue oxygen saturation at multiple body locations.

Learn more ›

Introduction to the MAX77511 MAX77711 10V Input Quad-Phase Configurable 3A/Phase High-Efficiency Buck Converter

This video provides an introduction to Maxim's 10V Input Quad-Phase Configurable 3A/Phase High-Efficiency Buck Converter - the MAX77511 MAX77711.

Evaluation Kit for MAX32665/MAX32666/ MAX32667/MAX32668

MAX32666EVKIT

Platforms to evaluate the MAX32665/MAX32666 high-efficiency Arm® microcontroller and audio DSP for wearable and hearable device applications.

Learn More ›

Evaluation Kit for MAX32650/MAX32651/MAX32652

MAX32650-EVKIT

Platform to evaluate the MAX32650 ultra-low-power memory-scalable microcontroller designed specifically for high-performance, battery-powered applications.

Learn More ›

Evaluation System for the MAX32660

MAX32660-EVSYS

Compact development platform that provides access to all the features of the MAX32660 in a tiny, easy-to-use board.

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Compact Development Board to Build Small, Power-Optimized IoT Applications

MAX32630-EVKIT

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

Learn more ›

Chapter 1: Cryptography: Why Do We Need It?

Gain a basic understanding of how cryptography works and how cryptography can help you protect your designs from security threats.

See more ›

Chapter 2: Cryptographic Fundamentals

Learn about the fundamental concepts behind modern cryptography, including how symmetric and asymmetric keys work to achieve confidentiality, identification and authentication, integrity, and non-repudiation.

See more ›

DeepCover® Automotive I2C Authenticator

DS28C40

Provides a core set of cryptographic tools derived from symmetric and asymmetric security functions.

Learn more ›

Ultra Compact Development Board Fits in the Tightest Spaces, Reduces Power

MAX32625PICO

Power-optimized Arm® Cortex®-M4F. On-board PMIC provides all necessary voltages. Ultra-compact 0.6in x 1.0in dual-row header footprint.

Learn more ›

Unveiling the Smallest LoRaWAN Module for IoT

 

"Maxim offers a portfolio of chipsets and solutions that have the potential to disrupt current IoT solutions.”
  -Dr. Schekeb Fateh, Business Development, Miromico


Featured products: MAX32625, MAX32626

Read Their Story ›

ChipDNA Secure Microcontroller

MAX32520

Arm Cortex M4 Micro provides FIPS/NIST compliant TRNG with environmental and tamper detection circuitry.

Learn more ›

Chapter 3: Cryptographic Algorithms

Smile, You’re on My Security Camera!

 

Smile, You’re on My Security Camera!
Advances in wireless and IoT technologies are fueling the market growth of security camera systems. Outdoor security cameras must operate for a long time on small disposable batteries. This design solution shows how a high-performance power management system can power an outdoor security camera several months longer than an ordinary solution.

Featured parts: MAX38640, MAX38641, MAX38642, MAX38643>
Read more ›

Introduction to the MAX17673 MAX17673A Integrated 4.5V to 60V Synchronous 1.5A High Voltage Buck and Dual 2.7V to 5.5V, 1A Buck Regulators

This video provides an introduction to the MAX17673, an integrated 4.5V to 60V Synchronous 1.5A High Voltage Buck and Dual 2.7V to 5.5V, 1A Buck Regulators.

Getting Started Estimating the State-of-Charge for Li-Ion Batteries

Samantha explores some of the complex characteristics of Li-ion batteries that make it difficult to accurately determine battery state-of-charge (SoC). She examines how load, temperature, and age can affect a battery’s capacity and voltage, both of which are used to estimate battery SoC.

Learn more › Battery Fuel Gauges

How to Locate the Outline Drawings, Land Patterns, and CAD Symbols and Footprints on Maxim’s Website

Samantha shows how to locate outline drawings, land pattern drawings, and CAD symbols and footprints for all Maxim parts. She also demonstrates how to use Maxim’s CAD tools with Ultra Librarian®.

Learn more › CAD Tools

Himalaya uSLIC Modules: High-Efficiency Power in Tiny Packages

Learn how uSLIC DC- DC step-down power modules enable power supplies to be designed into very tight, space-constrained areas for reliable, robust power conversion.

Learn more › uSLIC Power Modules

Diagram of IoT System Architecture

An IoT system typically consists of devices, gateways, and the data system.

Introduction to the DS28E16 DeepCover® 1-Wire SHA-3 Secure Authenticator

This video provides an introduction to the DS28E16 DeepCover® 1-Wire SHA-3 Secure Authenticator

Shrink Your Power Supply with Efficient uSLIC Step-Down Power Module

Explore the many high-performance features of this 4.5V to 36V, 2A Himalaya uSLIC step-down power module including its wide input voltage, high efficiency, wide temp range, and ultra-small size.

Learn more: MAXM17635 ›

Providing Small, Efficient Industrial Automation Products

 

"Our purpose is to make our customers’ products more integrated. Maxim’s digital input, for example, is more integrated, which can make our customers’ products smaller and more efficient.”
  -Mr. Xia Xianqiu, R&D Manager, HollySys


Featured products: MAX14912, MAX22190, MAX14931, MAX17503, MAX3042, MAX3094E, MAX6071, MAX14783E, MAX14945

Read Their Story ›

Producing World-Class Portable Sound Systems

 

"As we experiment with speaker sound using the MAX98390, we can quickly know the possible sound effects of the final product.”
  -Henry, Acoustic Engineer, Soundmatters


Featured product: MAX98390

Read Their Story ›

Simplified Modern Cryptographic System

Get a high level of security from a symmetric key cryptographic system

Diagram of How Encryption Ensures Confidentiality

Diagram of how encryption ensures information is kept confidential.

Diagram of How Identification and Authentication Work

Example of how identification and authentication work in a cryptographic system

Diagram of Message Integrity Example

Diagram of how a message digest helps preserve message integrity

Introduction to the MAX22700E/D, MAX22701E/D and MAX22702E/D Ultra-High CMTI Isolated Gate Drivers

This video provides an introduction to Maxim's Ultra-High CMTI Isolated Gate Drivers - the MAX22700E/D, MAX22701E/D and MAX22702E/D.

Keeping Race Car Batteries Safe

 

"We chose the iButton because it is easily implemented, as it does not need any connector or external power supply. It is also very robust.”
  -Sarah Battige, Formula Student Germany Operative Team


Featured product: DS1922T

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 ›

Introduction to the MAX17823B MAX17841B Automotive 12-Channel High-Voltage Data Acquisition System with SPI Communication Interface

This video provides an introduction to Maxim's Automotive 12-Channel High-Voltage Data Acquisition System with SPI Communication Interface - the MAX17823B and MAX17841B.

Introduction to the MAX40027 Dual 280ps High-Speed Comparator, Ultra-Low Dispersion with LVDS Outputs

This video provides an introduction to Maxim's Dual 280ps High-Speed Comparator, Ultra-Low Dispersion with LVDS Outputs - the MAX40027.

American Electric Vehicle Co.’s Road Buggy

American Electric Vehicle Co.’s Road Buggy could travel at speeds up to 17mph.

Physicist Raymond Gaston Planté, inventor of the rechargeable storage battery

Physicist Raymond Gaston Planté invented the rechargeable storage battery in 1859.

Siemens Self-Excited Dynamo

The self-excited generator is a dynamo that was set in motion by the residual magnetism of its powerful electromagnet.

William Morrison’s First Electric Vehicle

Chemist William Morrison built an electric carriage in 1887 and also developed a rechargeable battery for the vehicle.

Garage Electric Vehicle Charging Station

After 1905, a mercury arc rectifier system could be installed in a garage to provide electric vehicle charging.

Introduction to the MAX15093 MAX15093A 2.7V to 18V, 15A, Hot-Swap Solution with Current Report Output

This video provides an introduction to Maxim’s protection solution for 2.7V to 18V power, up to 15A amps: the MAX15093 and MAX15093A.

Introduction to the MAX32592 DeepCover Secure Microcontroller with ARM926EJ-S Processor Core

This video provides an introduction to Maxim’s DeepCover Secure Microcontroller with ARM926EJ-S Processor Core – the MAX32592 is the natural evolution of the popular MAX32590. It addresses applications where space is a real constraint while bringing a significant price cut.

Introduction to the MAX32561 DeepCover Secure Arm Cortex-M3 Flash Microcontroller

This video provides an introduction to Maxim's MAX32561, a single chip solution to integrate most of the interfaces required to build a modern financial pinpad or MPOS. The product can save many external components, saving on the PCB footprint. The product also comes with security, software stacks and evaluation reports to simplify EMV and PCI-PTS certifications while compressing the time to market when designing new pinpads and MPOS devices.

Introduction to the MAX86916 Integrated Optical Sensor Module for Mobile Health

This video provides an introduction to Maxim's Integrated Optical Sensor Module for Mobile Health - the MAX86916.

Introduction to the MAX25410 Automotive USB Power Delivery Port Protector

This video provides an introduction to Maxim's Automotive USB Power Delivery Port Protector - the MAX25410.

Introduction to the MAX16158 Nanopower, Tiny Supervisor with Manual Reset Input

This video provides an introduction to Maxim's Nanopower, Tiny Supervisor with Manual Reset Input - the MAX16158.

CIOE


Shenzhen, China
09/09/2020 - 09/11/2020

InfoComm 2020 is the largest professional audiovisual trade show in North America, with thousands of products for audio, unified communications and collaboration, display, video, control, digital signage, home automation, security, VR, and live events.

Register

Unlocking Human Performance with MAX32652

 

With 3MB flash, 1MB SRAM, and multiple memory-expansion interfaces, the MAX32652 provides the onboard memory and processing power at low power consumption WHOOP needed.

Featured products: MAX32652, MAX14745, MAX17223

Read Their Story ›

Acceleration Plethysmogram (APG)

An acceleration plethysmogram (APG) waveform is the result of a common way to process PPG data.

Power Spectral Density of PPG Data

Diagram of Power Spectral Density of PPG Data.

Introduction to the MAX20353 Wearable Charge Management Solution

This video provides an introduction to Maxim's Wearable Charge Management Solution - the MAX20353.

Introduction to the MAX25200 MAX25201 MAX25202 36V HV Synchronous Boost Controller for Infotainment Application

This video provides an introduction to Maxim's 36V HV Synchronous Boost Controller for Infotainment Application - the MAX25200 MAX25201 MAX25202.

Introduction to the MAX33012E +5V, 5Mbps CAN Transceiver with ±65V Fault Protection, Fault Detection and Reporting, ±25V CMR, and ±45kV ESD Protection

This video provides an introduction to Maxim's +5V, 5Mbps CAN Transceiver with ±65V Fault Protection, Fault Detection and Reporting, ±25V CMR, and ±45kV ESD Protection - the MAX33012E.

Introduction to the MAX25024 Automotive Low Input Voltage I2C 4-Channel 150mA Backlight Driver Supporting ASIL B

This video provides an introduction to Maxim's Automotive Low Input Voltage I2C 4-Channel 150mA Backlight Driver Supporting ASIL B - the MAX25024

Introduction to the MAXM17630 MAXM17631 MAXM17632 4.5V to 36V, 1A Himalaya uSLIC Step-Down Power Modules

This video provides an introduction to Maxim’s 4.5V to 36V, 1A High Efficiency, Synchronous DC-DC Step-Down uSLIC Power modules – the MAXM17630/1/2.

Introduction to the MAX25205 Gesture Sensor for Automotive Applications

This video provides an introduction to Maxim's Gesture Sensor for Automotive Applications - the MAX25205.

Diagram of MAX40660/MAX40661 transimpedance amplifiers for automotive LiDAR systems

Diagram of MAX40660/MAX40661 transimpedance amplifiers for automotive LiDAR systems

Diagram of MAX40025/MAX40026 transimpedance amplifiers for automotive LiDAR systems

Diagram of MAX40025/MAX40026 transimpedance amplifiers for automotive LiDAR systems

Autonomous Vehicles laser

Autonomous Vehicles laser/receiver system transmits light across the view to find objects with the reflection of the laser light.

MAX77654 block diagram

MAX77654 SIMO PMIC diagram of location-tracking chips IoT devices like e-bikes and e-scooters

Introduction to the MAX20499 Automotive Single 8A/12A Step-Down Converter Family

This video provides an introduction to Maxim's Automotive Single 8A/12A Step-Down Converter Family - the MAX20499.

Introduction to the MAX15095 MAX15095A MAX15095D 2.7V to 18V, 6.6A Integrated Hot-Swap/Electronic Circuit Breaker

This video provides an introduction to Maxim’s protection solution for 2.7V to 18V power, up to 6.6A amps: the MAX15095.

Introduction to the MAX14829 Low-Power IO-Link Device Transceiver with Dual Drivers

This video provides an introduction to Maxim's Low-Power IO-Link Device Transceiver with Dual Drivers - the MAX14829.

Introduction to the MAX20328 MAX20328A MAX20328B MUX Switches for USB Type-C Audio Adapter Accessories

This video provides an introduction to Maxim’s newest USB Type-C audio interface IC with integrated protection – the MAX20328, MAX20328A and MAX20328B.

Introduction to the MAX25601A MAX25601B MAX25601C MAX25601D Synchronous Boost and Synchronous Buck LED Controllers

This video provides an introduction to Maxim's Synchronous Boost and Synchronous Buck LED Controllers - the MAX25601A MAX25601B MAX25601C MAX25601D

Introduction to the MAX22025, MAX22028 Compact, Isolated, Half-Duplex RS-485/RS-422 Transceivers with Autodirection Control

This video provides an introduction to Maxim's Compact, Isolated, Half-Duplex RS-485/RS-422 Transceivers with Autodirection Control - the MAX22025 and MAX22028.

Secure Authentication in Automotive System

Using a secure authenticator in an automotive system prevents clones and counterfeits from operating within that system.

Improving Patient Outcomes with Remote Monitoring

 

"The DS1340 gave us a shorter design cycle as it has a built-in crystal.""
 -Neil Lundy, Technical Manager of Electronics, Philips RDT


Featured product: DS1340

Read Their Story ›

E Series function Excel options dialog box

Introduction to the MAX20075D MAX20076D MAX20076E MAX25276D 36V, 600mA/1.2A Mini Buck Converter with 3.5µA IQ

This video provides an introduction to Maxim's 36V, 600mA/1.2A Mini Buck Converter with 3.5µA IQ - the MAX20075D MAX25275 MAX20076D MAX25276D

Introduction to the MAX25613 Automotive Infrared LED Controller

This video provides an introduction to Maxim’s Automotive IR-LED Controller for Driver Monitoring Systems - the MAX25613.

Introduction to the DS28C39 DeepCover Secure ECDSA Bidirectional Authenticator with ChipDNA PUF Protection

This presentation provides an introduction to Maxim's DeepCover Secure ECDSA Bidirectional Authenticator with ChipDNA PUF Protection - the DS28C39.

Introduction to the MAX30131 MAX30132 MAX30134 4-Channel Ultra-low Power Electrochemical Sensor AFE

This video provides an introduction to Maxim's 4-Channel Ultra-low Power Electrochemical Sensor AFE - the MAX30131 MAX30132 MAX30134.

Arnold Schwarzenegger Robot at CES 2020

A robotic bust of Arnold Schwarzenegger at CES 2020 moves its face in a life-like manner.

Robot System Block Diagram

A variety of power management ICs, including protectors, LDOs, and buck converters, is needed in robotic systems.

Introduction to the MAXM17633 MAXM17634 MAXM17635 4.5V to 36V, 2A Himalaya uSLIC Step-Down Power Modules

This video provides an introduction to Maxim’s 4.5V to 36V, 1A High Efficiency, Synchronous DC-DC Step-Down uSLIC Power modules – the MAXM17633/4/5.

True-wireless earbud charging diagram

Diagram of MAX20340 DC powerline communication management IC and the MAX20343 buck-boost converter with dynamic voltage scaling enable small, power efficient true-wireless earbuds.

Creating Assistive Devices with Maxim Biosensors

 

"You have a solution (Health Sensor Platform 2.0) that is really quite excellent. I was able to leverage everything. All the sensors are Maxim sensors."
 -Marty Stone, Founder and President, Atec Inc.


Featured products: MAX30001, Health Sensor Platform 2.0, MAX86141, MAX30205, MAX32630, MAX20303, MAX32664

Read Their Story ›

Advancing Digital TV Technologies

 

"Our DVB-C modulators based on the MAX5862 and MAX5868 integrate 32 channels on a single board and up to 96 channels in a single chassis."
 -Mr. Gang Ma, General Manager, R&D, Gospell Digital Technology


Featured products: MAX5862, MAX5868

Read Their Story ›

Mouth-Based Biometrics Monitoring

 

"The Maxim chips performed beautifully when we used them. It really has become a standard with many companies."
 -Mike Saigh, CEO, Equine SmartBits


Featured products: MAX30102, MAX32664, MAX30205, MAX8808X, MAX40200, MAX8902, MAX6775

Read Their Story ›

Simplifying Creation of IoT and Robotic Devices

 

"In the case of the MAX3051, low data error rate and a competitive price were factors in our choice."
 -Hanjun Kim, Hardware Technical Lead, LUXROBO


Featured products: MAX3051, MAX38902C, MAX8969, MAX40200

Read Their Story ›

Creating High-End ATE Products

 

NCATEST was able to reduce its design cycle while creating an ATE solution that is smaller, lower power, and better performing than its predecessor.

Featured products: MAX6350, MAX6325, MAX811, MAX3232, MAX541, MAX4820, MAX11160, MAX14783, MAX6696

Read Their Story ›

Introduction to the DS28C50 DeepCover® Secure SHA-3 Authenticator with ChipDNATM PUF Protection

This video provides an introduction to Maxim's DeepCover® Secure SHA-3 Authenticator with ChipDNA™ PUF Protection - the DS28C50.

Introduction to the MAX17670 MAX17671 MAX17672 Integrated 4V-60V, 150mA, High-Efficiency, Synchronous Step-Down DC-DC Converter with 50mA Linear Regulator

This video provides an introduction to the MAX17670/71/72, a dual-output regulator integrating a 4V to 60V, 150mA high-voltage, high-efficiency synchronous step-down converter with internal MOSFETs and a high-PSRR, low-noise, 2.35V to 5V, 50mA linear regulator.

Power management architecture for car camera system

A car camera power protector IC can be part of a fusion ECU for the camera system.

Introduction to the MAXM17536 MAXM17537 4.5V to 60V, 4A Himalaya Step-Down Power Modules

This video provides an introduction to Maxim’s 4.5V to 60V, 4A High Efficiency, DC-DC Step-Down Power Module with Integrated Inductor – the MAXM17536/7

electronica 2018 – 360 View

See the full view of Maxim solutions at electronica 2018.

Learn more ›

Introduction to the MAX86171 Best-in-Class Optical Pulse Oximeter and Heart-Rate Sensor AFE for Wearable Health

This video provides an introduction to Maxim's Best-in-Class Optical Pulse Oximeter and Heart-Rate Sensor AFE for Wearable Health - the MAX86171

Xilinx VCU108 FPGA Power Solution

 

Complete Power Solution for the Virtex Ultrascale VCU108 Reference Design

Learn more ›

Xilinx KCU105 FPGA Power Solution

 

Complete Power Solution for the Kintex Ultrascale KCU105 Reference Design

Learn more ›

Xilinx VCU110 FPGA Power Solution

 

Complete Power Solution for the Virtex Ultrascale VCU110 Reference Design

Learn more ›

Bluetooth Low Energy: The Physical Layer—Part 1 of 7

In the first video of this series on Bluetooth® Low Energy, we investigate the radio (or physical) layer, including operating frequency, modulation, and channel management techniques. In Part 2, “Bluetooth Low Energy: How to Define a BLE Application,” we’ll explore using a sample BLE application.

Learn more: MAX32666 ›

Bluetooth Low Energy: How to Define a BLE Application—Part 2 of 7

In the second video in this series, we explore a typical Bluetooth® Low Energy application - a heart rate monitor - to examine how BLE devices use profiles to organize and share information. In Part 3, “Bluetooth Low Energy: Understanding GAP Roles,” learn how to use Generic Access Profiles in BLE applications.

Learn more: MAX32666 ›

Bluetooth Low Energy: Understanding GAP Roles—Part 3 of 7

The third video in this series describes how the Generic Access Profile assigns a set of roles used by Bluetooth® Low Energy (BLE) devices to form a Piconet. We define those roles, explain how peripherals and centrals establish a connection, and introduce the concept of the host and controller pieces of the Bluetooth stack. In Part 4, “Bluetooth Low Energy: Unpacking the Physical Layer Packets,” learn how packets are used for data communication.

Learn more: MAX32666 ›

Bluetooth Low Energy: Unpacking the Physical Layer Packets—Part 4 of 7

In Part 4 of this series, we show how Bluetooth® Low Energy (BLE) uses packets for data communication. We describe the BLE packet structure, before examining an advertising packet in more detail. In Part 5, “Bluetooth Low Energy: Dissecting the Controller Layer,” we’ll examine the host and controller layers.

Learn more: MAX32666 ›

Bluetooth Low Energy: Dissecting the Controller Layer—Part 5 of 7

The Bluetooth® Low Energy stack consists of two parts: the host, which is home to the higher layer protocols and profiles, and the controller, where the radio and associated PDU control logic is located. In the fifth part of this series, we dissect the controller into its constituent components and show how the individual blocks work together to ensure a reliable transfer of information. In Part 6, “Bluetooth Low Energy: All About BLE Security,” we’ll learn how BLE keeps information private.

Learn more: MAX32666 ›

Bluetooth Low Energy: All About BLE Security—Part 6 of 7

Bluetooth® Low Energy (BLE) is often used to transport sensitive information, such as health-related data. The sixth video in this series shows how BLE keeps this information private by using security protocols to protect the data transport link. In Part 7, “Bluetooth Low Energy: Developing an Application,” we’ll explain the concept of an API.

Learn more: MAX32666 ›

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.

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.

Introduction to the MAX16141 MAX16141A 3.5V to 36V Ideal Diode Controller with Voltage and Current Circuit Breaker

This video provides an introduction to Maxim's 3.5V to 36V Ideal Diode Controller with Voltage and Current Circuit Breaker - the MAX16141 MAX16141A.

698MHz to 3800MHz RF Power Amplifier Linearizer

SC1905

True RFin/RFout solution supports 100MHz BW for modular power amp designs, including 3G, 4G, and 5G cellular infrastructure.

Learn More ›

300MHz–960MHz (G)FSK Transmitter with I2C Interface

MAX41464

Includes Bits-to-RF single-wire MCU for low-cost implementation, up to +16dBm output power to increase short-range transmissions.

Learn More ›

Low-Power DOCSIS 3.1 Programmable-Gain Amplifier

MAX3523

Passes stringent DOCSIS 3.1 specifications. Low 3.5W power dissipation surpasses cable modem/gateway requirements.

Learn More ›

Frequency Synthesizer Shield

MAXREFDES161

Frequency synthesizer generates 23.5MHz to 6GHz microwave radio signals. Level translators connect to +3.3V and +5V microcontrollers.

Learn more ›

Evaluation Kit for Multiband Universal GNSS Receivers

MAX2771EVKIT

Provides multi-constellation/multi-band support with superior RF performance for the highest position accuracy.

Learn More ›

Evaluation Kit for Universal GNSS Receivers

MAX2769CEVKIT

Fully programmable, supports GPS, GLONASS, and Galileo systems in a single chip.

Learn More ›

Frequency Synthesizer Shield

MAXREFDES161

Frequency synthesizer generates 23.5MHz to 6GHz microwave radio signals. Level translators connect to +3.3V and +5V microcontrollers.

Learn more ›

Evaluation Kit for Multiband Universal GNSS Receivers

MAX2771EVKIT

Provides multi-constellation/multi-band support with superior RF performance for the highest position accuracy.

Learn More ›

Evaluation Kit for Universal GNSS Receivers

MAX2769CEVKIT

Fully programmable, supports GPS, GLONASS, and Galileo systems in a single chip.

Learn More ›

LiDAR system

Diagram of LiDAR system with the TIA and COMP optical receiver system.

MAX40660 and MAX40661 transimpedance amplifiers block diagram

Diagram of MAX40660/MAX40661 transimpedance amplifiers (TIA1 and TIA2) for automotive LiDAR.

MAX40025 and MAX40026 high-speed comparators

MAX40025 and MAX40026 stabilize the TIA optical signal in LiDAR applications.

Ultra-High CMTI Isolated Gate Driver

MAX22701E

Features single-ended input with Miller clamp output.

Learn more ›

How to Design a Negative Voltage Reference Using MAX828

Katie explains the purpose of a stable voltage reference and describes three common methods used to create one. Next, she shows how the MAX828 can be used to quickly and easily create a small, efficient negative voltage reference for applications which use a bipolar supply.

Learn more: MAX828 ›

Bluetooth Low Energy: Developing an Application—Part 7 of 7

Nobody writes programs for Bluetooth® Low Energy (BLE) from scratch. In the final video of this series, a sample fitness tracking application is used to explain the concept of an API (Applications Programming Interface).

Learn more: MAX32666EVKIT ›

Fan motor efficiency and power factor for 38–50W shaded-pole motor and PMSM motors

Fan motor efficiency and power factor for 38–50W shaded-pole motor and PMSM motors. Image courtesy of Oak Ridge National Laboratory.

Fan motor efficiency and power factor for 38–50W ECM and PMSM motors

Fan motor efficiency and power factor for 38–50W ECM and PMSM motors.

11.5A, 900V silicon carbide power MOSFET from Wolfspeed

An 11.5A, 900V silicon carbide power MOSFET from Wolfspeed. Image courtesy of Wolfspeed, a Cree company.

A standard AC induction motor

Compact Development Board for Secure IoT Applications

MAX32520-KIT

Cortex®-M4 secure microcontroller provides secure boot and protection against physical tampering for IoT applications.

Learn more ›

Introduction to the MAXM17712 MAXM17720 and MAXM17724 Integrated 4V-60V, 150mA, Himalaya uSLIC Step-Down Power Module with 50mA Linear Regulator

This video provides an introduction to Maxim's Integrated 4V-60V, 150mA, Himalaya uSLIC Step-Down Power Module with 50mA Linear Regulator - the MAXM17712 MAXM17720 and MAXM17724

EE-Sim DC-DC Tool Overview

See a demonstration of the most commonly used functionality in EE-Sim. Includes opening a new DC-DC design, changing design requirements, creating a schematic, running simulations, comparing designs, and generating a report.

Learn more: EE-Sim Design and Simulation Tool ›

EE-Sim Design Requirements

How to set the Design Requirement specifications and create a schematic.

Learn more: EE-Sim Design and Simulation Tool ›

EE-Sim Working with Components

Review the manufacturer, part number, and key properties for each recommended component in your schematic. Select a different component, or define your own component. How ceramic capacitor performance is derated, and why that is important.

Learn more: EE-Sim Design and Simulation Tool ›

EE-Sim Simulation

Use the Simulation Setup Window to run up to six simulation types. If desired, customize a variety of simulation settings. Places to access the resulting waveforms.

Learn more: EE-Sim Design and Simulation Tool ›

EE-Sim Design Tradeoffs

Prioritize the design size, efficiency, or BOM cost based on your design needs. Learn how this selection is implemented in your schematic.

Learn more: EE-Sim Design and Simulation Tool ›

NFC/RFID Tags and Readers

Fundamentals of NFC/RFID Communications

What’s the difference between NFC and RFID? Learn about the technology behind near field communication (NFC) and radio frequency identification (RFID) and the unique application characteristics of each. See how NFC and RFID ICs use modulation and demodulation processes, and through electromagnetic waves, move from the transmitter or tag to the receiver or reader.

Learn more › NFC/RFID Tags and Readers

Enabling High-Performance Automotive Infotainment

 

"MAX9286 is highly integrated and can support up to four camera links. This compact integration takes up less space on the mainboard and also reduces the bill of materials cost for customers.”
-JC Hsu, Corporate Vice President, MediaTek


Featured products: MAX9286, MAX96705, MAX15007C, MAX8902B

Read Their Story ›

Introduction to the MAX14828 Low-Power, Ultra-Small IO-Link Device Transceiver

This video provides an introduction to the MAX14828, a Single 250mA IO-Link Transceiver + DI.

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

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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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Dual-Channel, Synchronous Buck High-Brightness LED Controller with SPI Interface

MAX20096

Ultra-fast transient response with near-fixed frequency minimizes EMI for matrix lighting, wide dimming ratio allows high contrast.

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2A Synchronous Buck LED Driver with Integrated MOSFETs

MAX20050

High-performance, compact, and efficient buck LED driver simplifies automotive and general lighting designs.

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Automotive High-Voltage, High-Brightness LED Controller

MAX20090

Single-channel HB LED driver for front-light applications such as high-beam, low-beam, and daytime running lights.

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12-Switch Matrix Manager for Automotive Lighting

MAX20092

Single/dual/quad-string configurations, programmable 12-bit PWM dimming, enables matrix/pixel lighting up to 1.5A

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Synchronous Buck, High-Brightness LED Controller

MAX20078

Industry's First Automotive Buck Controller with Ultra-Fast Response and Pseudo Fixed-Frequency Regulation

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60V, 1A, Automotive Synchronous Step-Down DC-DC Converter

MAX20058

60V Synchronous Buck Converter with Internal FETs Enables High Efficiency and Low Temperature Rise

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36V, 2.5MHz Automotive Boost/SEPIC Controllers

MAX16990

2.5MHz Automotive PWM Controller Enables Space-Efficient Preboost Supplies for Cold/Warm Crank Applications

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High-Voltage, 3-Channel Linear High-Brightness LED Driver with Open LED Detection

MAX16823

Highly Integrated, High-Voltage LED Driver Ideal for Automotive Applications

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Introduction to the MAX17662 3.5V to 36V, 2A, High-Efficiency, Synchronous Step-Down DC-DC Converter

This video provides an introduction to Maxim's 3.5V to 36V, 2A, High-Efficiency, Synchronous Step-Down DC-DC Converter - the MAX17662.

Understanding Power Losses in Buck Converters

Anthony examines the large power losses associated with the rectification diode of a traditional buck converter. He then shows how a synchronous buck converter, like the MAX17506 or MAX17503, can significantly improve efficiency, thermal performance, and reliability by replacing the diode with an integrated MOSFET.

Learn More > Himalaya Buck Converters

Transimpedance Amplifier with 100mA Input Current Clamp for Automotive LiDAR

MAX40660

Small 3x3 TDFN with wide 490MHz bandwidth captures road condition detail and low 2.1pA/√Hz noise density reduces signal distortion and misinterpretation.

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How to Use DC-Biasing Configurations to Extend the Operating Voltage Range of a Flyback Converter

Teja considers the advantages and disadvantages of three commonly used DC biasing configurations that allow a flyback converter to operate above its absolute maximum voltage rating. He explains why transformer auxiliary winding is the best option, before using the MAXREFDES1193 to calculate the efficiency of this configuration.

Learn more: MAXREFDES1193 ›

Simplify System Power Designs and Achieve Bigger, Sharper Automotive Displays

Maxim's automotive-grade power ICs enable a wide range of display capabilities, helping you implement solutions to support higher luminance, higher current, and increased channel, making it easier to design bigger, sharper automotive displays. Our automotive display ICs also meet ASIL-B and high power requirements for greater reliability.

Learn more: Automotive Display Power ›

Michael Kratsios, U.S. Chief Technology Officer

U.S. Chief Technology Officer Michael Kratsios discusses AI leadership at CES

Elaine Chao, U.S. Secretary of Transportation

Elaine Chao announced AV 4.0, the U.S. initiative on autonomous vehicles, at CES 2020.

5G Technology

5G technology promises to bring the IoT to more people.

Driverless Taxi

Hyundai and Uber are teaming up to bring a driverless taxi to the market.

How to Fix a Corrupted EEPROM on an SC1905EVKIT or SC1894EVKIT

Samantha shows how to identify if your SC1905EVKIT or SC1894EVKIT has a corrupted EEPROM by measuring the supply current or by running the GUI. She then shows some simple fixes to restore your EV kit if this is the case.

Learn more: SC1905 ›

Beacon Current Profile

Typical Beacon Block Diagram

Bluetooth Beacons in the Smart Factory

Tutorial: All About Frequency Synthesis

Learn how variable frequency synthesis is achieved with the phase-locked loop (PLL). This video covers PLL theory and design including the phase detector, loop filter, voltage-controlled oscillator (VCO), integer dividers/multipliers, and the benefits of fractional division. Resources for finding integrated frequency synthesizer ICs are provided.

Learn More › PLLS and VCOs

USB to 1-Wire adapter

DS9481R-3C7

With the OneWireViewer PC utility, easily exercise and evaluate 1-Wire devices.

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Evaluation kit for the DS9090EVKIT

DS9090EVKIT

With the OneWireViewer PC utility, exercise and evaluate a broad range of 1-Wire devices.

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MAX17301/11 functional diagram

Pack-side fuel-gauge implementation

Host-side fuel-gauge implementation

1-Wire Technology Overview - Part 2

In “1-Wire Technology Overview - Part 1," you learned about the 1-Wire® protocol. In part 2, learn how the 1-Wire communication protocol can be used in authentication, memory, and temperature sensing applications.

Learn more: 1-Wire ›

1-Wire Technology Overview - Part 1

Learn how the 1-Wire® communication protocol works, its advantages over other types of serial communication, common implementation configurations, and popular 1-Wire applications. In the next video, “1-Wire Technology Overview - Part 2,” you’ll learn how the 1-Wire protocol is used in applications.

Learn more: 1-Wire ›

Introduction to the MAX77504 14Vin 3A High Efficiency Buck Converter

This video provides an introduction to Maxim's 14Vin 3A High-Efficiency Buck Converter - the MAX77504.

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.

Introduction to the MAX20412 Automotive Low-Voltage 2-Channel Step-Down Controller

This video provides an introduction to the MAX20412, a dual-output, high-efficiency synchronous step-down controller IC that operates with a 3.0V to 5.5V input voltage range and provides a 0.25V to 1.275V output voltage range.

Introduction to the MAX14813 Ultra-Compact Octal 3L/Quad 5L Pulser with T/R Switches and Beamforming Capability

This video provides an introduction to Maxim's Ultra-Compact Octal 3L/Quad 5L Pulser with T/R Switches and Beamforming Capability - the MAX14813.

Evaluation Platform for Wrist-Based Heart-Rate and SpO2 Monitoring

MAXREFDES103#: Health Sensor Band

Demonstrates the high sensitivity and algorithm processing functions of health-sensing applications.

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3.5V to 36V Ideal Diode Controllers with Voltage and Current Circuit Breaker

MAX16141/MAX16141A

Mitigates high-voltage transient spikes, fast (0.3µs typ) shutdown response prevents reverse currents, and 5μA (typ) shutdown current reduces battery drain.

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280ps High-Speed Comparator, Ultra-Low Dispersion with LVDS Outputs

MAX40026

10ps overdrive delay at 20mV to 100mV output drive (dispersion) for 0.018cm time-of-flight measurement error in 2mm x 2mm TDFN.

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Introduction to the MAX25249 MAX25249B Quad Output Mini PMIC for Automotive Camera Applications

This video provides an introduction to Maxim’s Flexible Mini Dual 2.2MHz, 500mA Buck Converter with LDOs for Automotive Camera Supplies – the MAX25249 and MAX25249B

Introduction to the MAX98360A MAX98360B MAX98360C MAX98360D Tiny, Cost-Effective, Plug and Play Digital Class-D Amplifier

This video provides an introduction to Maxim's Tiny, Cost-Effective, Plug and Play Digital Class-D Amplifier - the MAX98360A MAX98360B MAX98360C MAX98360D

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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Introduction to the MAX20340 Bidirectional DC Powerline Communication Management IC

This video provides an introduction to Maxim's Bidirectional DC Powerline Communication Management IC - the MAX20340.

How to Measure Current with the MAX4173 Current-Sense Amplifier and a Microcontroller

In this video, Sean uses the MAX4173 Evaluation Kit together with an Arduino® Uno to measure current. He also discusses the principle behind measuring current and why a current-sense amplifier is a very useful addition to this technique.

Learn more › MAX4173

Ultra-Low Power Octal, Digital Input Translator/Serializer

MAX31910

Translates, conditions, and serializes digital output of industrial sensors and switches.

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Octal, High-Speed, Industrial, High-Side Switch

MAX14900E

Fast 24V driver, low propagation delay, and 100kHz load-switching speed for high-speed PLCs.

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Introduction to the MAX20057 MAX20457 MAX20458 36V Boost Controller with Two Synchronous Buck Converters (3.5A/2A) for Automotive Applications

This video provides an introduction to Maxim's Synchronous Buck Converters for Automotive Applications.

Introduction to the MAX40056F/T/U Bidirectional Current Sense Amplifier with PWM-Rejection

This video provides an introduction to the MAX40056, a bi-directional current-sense amplifier with an input common-mode range that extends from -0.1Vto +65V together with protection against negative inductive kickback voltages to -5V.

How to Set Up a SerDes Reverse Control Channel When PCLK is Not Available - Using the MAX96705/MAX96706 GMSL SerDes

Learn how to establish the I2C reverse control channel when PCLK is not available using the MAX96705 Gigabit Multimedia Serial Link (GMSL) serializer and MAX96706 GMSL deserializer.

Also see: How do I program the remote side of a SerDes link when PCLK is not present?

Learn more: MAX96705 16-Bit GMSL Serializer ›

Learn more: MAX96706 14-Bit GMSL Deserializer ›

Automotive displays

Bigger, sharper automotive displays benefit from highly integrated power management ICs.

MAXREFDES103#

The MAXREFDES103# is a full wrist-worn wearable reference design for heart-rate, heart-rate variability, and SpO2 measurements.

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.

Kingston A2000 SSD

The Kingston A2000 SSD delivers fast, reliable performance for laptops.

LynQ people compass

The LynQ device creates a private network to help users find one another.

Sublue WhiteShark Mix underwater scooter

Sublue’s WhiteShark Mix underwater scooter propels users underwater, in pools or in the ocean.