Pulse Oximeters


Pulse oximetry detects oxygen saturation in the bloodstream. The reading is useful as a general health monitor because the degree of oxygen saturation can be an early detector of medical problems involving the heart and lungs.

Operation is based on the light-absorption characteristics of hemoglobin in the blood. Oxygenated hemoglobin absorbs more infrared light than red light, and deoxygenated hemoglobin absorbs more red light than infrared light. Thus, red and infrared LEDs in the oximeter alternately transmit light, and a photodiode receives the light that is not absorbed. The ratio of the red and infrared light received by the photodiode is used to calculate the percentage of oxygen in the blood. Based on the pulsatile nature of arterial blood flow, the pulse rate and strength are also determined and displayed during the measurement cycle.

The reflected light signal is algorithmically processed to determine the degree of oxygen saturation. Most pulse oximeters display the oxygen level and pulse as they are sensed. Some products provide logging, and some provide wireless communication to and from a host device for a larger display.

Older products used a sensor cable that attached to a base pulse oximeter. Modern designs digitize the signals within a single enclosure, negating the need for a base unit in many cases. A modern design will also optionally feature a standardized wireless interface like low-power Bluetooth to send data to a capture or display device like a tablet or smartphone.

Today, accurate consumer-grade pulse oximeters are moderately priced and come with a variety of features such as data logging. Logging allows monitoring of oxygen levels, for example, to detect sleep apnea, and allows tracking of heart rate over time, which can help determining the existence of some heart conditions.

Please click on the "design consideration," "circuits," and "block diagram" tabs for more information on how to design a modern pulse-oximetry monitor.

From an analog design perspective, the most challenging part of the design is building the light transmitter and detection circuit. Usually two wavelengths of light are used—ultraviolet and red—so two transmitters and two detector circuits are needed. In addition, usually only one of the two LEDs is illuminated at one time; this functionality is built into the control circuit. Once the microcontroller accurately receives the signal, the internal algorithm processes the signals to determine the oxygenation factor and the heart rate.

LED Transmit and Receive Path

As can be imagined, the received signal levels are very small, so the design requires very accurate and precise detection circuitry. Today, most high-volume pulse ox sensors utilize highly integrated circuitry that contains both transmitting LEDs and photodetectors for both wavelengths. Sensors are available from multiple sources that provide complete detection and conversion to digital within a single IC. Unless a design has requirements beyond those of the standard pulse ox application, it is best to select an integrated light sensor with a digital output.

For those who need to design their own sensor signal chain, the following diagrams can provide some guidance.

Figure 1. Simplified red and infrared LED bias and control circuit.

This driver design allows easy setting of the drive currents by setting a DAC. The two phase signals are digital on and off to control turn the LEDs on and off. For more information, refer to Application Note 4671: Improve Sensor Performance and SNR in Pulse Oximeter Designs.

Figure 2. Simplified photodiode receive path circuit.

In Figure 2, the key specifications for the TIA amplifier are extremely low input current, input current noise, and input voltage noise, as well as high-voltage operation. These characteristics are necessary to maximize the SNR so that the small currents of interest can be measured amid the large ambient currents. High-voltage operation means that a larger feedback resistor can be used to easily amplify the ambient and received LED current before removing the ambient portion with a highpass filter. The remaining small signal of interest is then amplified to maximize the ADC's dynamic range. This gain stage should be programmable to compensate for changing environmental factors and the aging of optical components.

The key specifications for the ADC are high SNR and sample rate. The sample rate should be fast enough to capture the modulated signal and perform the required digital processing, which is different for each manufacturer.

Because the optical properties of an LED can drift over time, it is important that a pulse oximeter have a built-in method of calibration.

Product Selection

The MAX30100 is an integrated pulse oximetry and heart-rate monitor sensor solution. It combines two LEDs, a photodetector, optimized optics, and low-noise analog signal processing to detect pulse oximetry and heart-rate signals.

View the block diagram for product recommendations.

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The microcontroller selection will depend on the degree of analog functionality and precision needed, which will depend on the sensor signal-chain construction—whether it is a single-chip sensor with a digital output, or a proprietary sensor with a custom analog signal chain. If the input from the sensor is serial digital, then a lower cost processor similar to a low–power, 32-bit ARM controller would suffice. Other functions to consider include display driving capability if a display is included in the device.

Product Selection

The MAX32600 microcontroller is based on the industry-standard ARM® Cortex®-M3 32-bit RISC CPU operating at up to 24MHz. It includes 256KB of flash memory, 32KB of SRAM, a 2KB instruction cache, and integrated high-performance analog peripherals. This product is a good fit if very precise analog processing needs to be integrated onto a single microcontroller to meet product size requirements.

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Depending on the design, the power will be supplied by a single-cell Li+ battery for mobile or wearable devices, or a more traditional power from line via a "wall wart" type transformer.

For a mobile or wearable device, the power supply will consist of either battery only (replaceable ) or rechargeable batteries combined with a Micro-USB port for recharge power and for data.

In both cases the power rails are supplied through either individual step-down, step-up, or LDO voltage converters.

Product Selection

The MAX14676/MAX14676A ICs are battery-charge-management solutions ideal for low-power wearable applications. These devices include a linear battery charger with a Smart Power Selector™, ModelGauge™ fuel gauge, and several power-optimized peripherals. They feature an ultra-low-power buck regulator with a quiescent current of 900nA (typical) and 74% efficiency with 10μA output.

For more design information, please review the application notes specified to the right, view the circuits listed under the "circuits" tab, and view the block diagrams listed under the "block diagrams" tab.

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Serializer Enables Use of Coax Cables, Reducing Weight and Cost of Cabling in Automotive Infotainment

MAX9291 Functional Diagram

3.12Gbps GMSL Serializer for Coax or STP Output and HDMI Input. The MAX9291 converts an HDMI input to a Gigabit multimedia serial link (GMSL) output for transmission of video, audio, and control signals over 15m or more of 50Ω coax or 100Ω shielded twisted-pair (STP) cable. The serializer pairs with any GMSL deserializer capable of coax input. When programmed for STP output the serializer is backward compatible with any GMSL deserializer. The output amplitude is programmable 100mV to 500mV single-ended (coax) or 100mV to 400mV differential (STP).

MAX14913 1x1 Homepage Tile

MAX14913 2x1 Homepage Tile

16-Bit Four-Channel Analog Input Micro PLC Card


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

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Stand-Alone ModelGauge m5 Fuel Gauge with SHA-256 Authentication


Ultra-low-power stand-alone fuel gauge IC that prevents battery pack cloning and does not require host interaction for configuration.

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Ultra-Low Power PMIC with 3-Output SIMO and Charger Optimized for Small Li+ Batteries


Highly integrated battery charging and power supply solution increases battery life and efficiency at less than half the size.

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2A 1-Cell Li+ DC-DC Charger for USB and Adapter Power


Integrated single-cell Li+ charger and Smart Power Selector™ with dual (AC adapter and USB) power inputs.

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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

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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

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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

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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

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Cost-Effective, Efficient Solar 


“The JinkoMX modules (with Maxim cell-string optimizers) provide technology that helps mitigate shading issues at a price point below other alternatives.”
 -Caleb Arthur, CEO, Missouri Sun Solar

Featured products: Cell-string optimizers

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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

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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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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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Displaying Heart Waveforms Visually


“The name of the game is miniaturization and low power, and Maxim has the best solution for both.”
 -Arvind Thiagarajan, CEO, HD Medical

Featured products: MAX32620, MAX14690, MAX1703, and Maxim battery monitors

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Solar Power in Shady Places


“Maxim’s junction box integrated cell-string optimizer has given us maximum design and layout flexibility to put panels on multiple roof planes without compromising performance.”
 -Anand Janaswamy, SVP, Product Development and Utilization at OneRoof Energy

Featured products: Cell-string optimizers

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Safeguarding Desktop PCs


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

Featured products: Maxim MAX32550

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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

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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

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Building an Energy-Efficient, Maintenance-Free House


"3.2W of clean I2S audio from a MAX98357A Class D amplifier means the best sound in the least space for a Raspberry Pi or other I2S sources”
 -Martin Winston, Editor, Newstips Bulletin

Featured products: MAX98357A, MAX44009

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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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Helping Listeners Feel Music 


“We wanted a high-quality, reliable, and highly efficient (audio amplifier) solution, and Maxim’s MAX98357A had all of the features we needed.”
 -Jukka Linjama, CTO and Partner, Flexound Systems

Featured product: MAX98357A

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Portable Ultrasound for Remote Care


“The MAX2082 transceiver is optimized for high-channel count, high-performance portable and cart-based ultrasound systems.”
 -Anakin Choung, COO, Healcerion Co.

Featured products: MAX2082, MAX4968B

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Safer, Easier Mobile Payments


"Maxim is an outstanding vendor in terms of safety in the industry. Using the MAX32555 provides a strong safety guarantee for us."
 -Marco Ma, Beijing Weipass Panorama Information Technology Co.

Featured product: MAX32555

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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

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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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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

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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

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Power-Line Communications (PLC) Integrated Analog Front-End Transceiver


This is the first AFE specifically designed for OFDM modulated signal transmission over power lines. Operating in the 10kHz to 490kHz band, the programmable filters allow compliance with CENELEC, FCC, and ARIB standards using the same device.

High-Speed, Half-Bridge MOSFET Drivers


125V half-bridge, n-channel MOSFET drivers drive high-and low-side MOSFETs in high-voltage applications.

Secondary-Side Synchronous MOSFET Driver for Flyback Converters


4.5V to 36V input, high-current driver improves efficiency and thermal management.

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High-Efficiency, Step-Up DC-DC Converter


The input voltage of these circuits range from 0.7V to VOUT and they have a preset, pin-selectable output for 5V or 3.3V. The outputs can also be adjusted to other voltages using two external resistors.

250MHz to 12.4GHz, High-Performance, Fractional/Integer-N PLL


Combined with an external reference oscillator, loop filter, and VCO, the device forms an ultra-low noise and low-spur frequency synthesizer capable of accepting RF input frequencies of up to 12.4GHz.

36V, 220kHz to 2.2MHz Buck Controller with 3.5µA IQ


Three frequency modes with fixed 3.3/5V or programmable 1V to 10V output and ±1% accuracy.

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Dual, Quick-PWM, Step-Down Controller with Low-Power LDO, RTC Regulator


Multipurpose controller configurable for system power, graphics, and memory applications in portables.


Ultra-Low Power Biopotential AFE


For wearable applications, provides ECG waveforms and a heart-rate detection algorithm.

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16-Bit, 1.6Msps, Low-Power, Fully Differential SAR ADC


This 16-bit, 1.6Msps, single-channel, fully differential SAR ADC has internal reference buffers, provides excellent static and dynamic performance with best-in-class power consumption while providing an SPI output.

36V, 220kHz to 2.2MHz, 6A Buck Converter with 15µA IQ


Integrated MOSFETs with fixed 3.3/5V or programmable 1V to 10V output in 3.75mm x 3.75mm FC2QFN.

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Ultra-Low Power, High-Performance Arm® Cortex®-M4 with FPU Based Microcontroller for Wearables


Optimal peripheral mix provides platform scalability

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Low-Offset, Low-Power Op Amp


This op amp offers a unique combination of high speed, precision, low noise, and low-voltage operation making it ideally suited for a large number of functions such as filtering and amplification of signals in portable and industrial equipment.

60V In, Low Parts Count Switching Regulator Provides 3.5A


Providing output currents up to 3.5A, this synchronous step-down switching regulator handles input voltages of up to 60V. In addition, this product features very efficient internal synchronous FET switches so you can reduce your power supply board space to a minimum.

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Ultra-Low-Power, Robust Dual IO-Link Master Transceiver


Master transceiver with sensor/actuator power-supply controllers.

4A Sink/Source Current, 12ns, Dual MOSFET Driver


Fast switching time with short propagation delay, ideal for high-frequency circuits.

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Digital Temperature Sensors and Thermal Watchdog


This temperature sensor accurately measures temperature and provides an overtemperature alarm/interrupt/shutdown output. Output is digital through an I²C-compatible 2-wire serial interface.

JEITA-Compliant, Li+ Charger with and USB Enumeration


A JEITA-compliant lithium-ion linear battery charger that operates from a USB port, a dedicated charger, or universal adapter. The IC provides automatic adapter-type detection and enumeration with a USB host or hub. Provides the simplest and smallest USB-compliant charging solution

Octal, 12-Bit, 50Msps, ADC with Serial LVDS Outputs


A high-speed, 12-bit analog-to-digital converter (ADC) features fully differential inputs, a pipelined architecture, and digital error correction incorporating a fully differential signal path.

4.5V to 76V, 1A High-Efficiency, Step-Down Power Module


0.8V to 5V output with integrated FETs , inductor and compensation in a 6.5mm x 10mm x 2.92mm SiP package.

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4-Channel, 1kVRMS Digital Isolator


Allows direct interfacing to 1.8V devices in 6mm x 5mm package

1A, 76V, High-Efficiency MAXPower Step-Down DC-DC Converter


This easy-to-use, high-efficiency, high-voltage, step-down DC-DC converter operates from an input voltage up to 76V and consumes only 270µA quiescent current at no load, and can provide up to 1A out.

Ultra-Low Power Arm Cortex M4 with FPU Microcontroller for Wearables and IoT, with up to 512KB Flash and 160KB SRAM


The MAX32625/MAX32626 feature an Arm® Cortex®-M4 with FPU CPU that delivers high-efficiency signal processing, ultra-low power consumption and ease of use.

Industry's Lowest Power Upstream Amplifier for DOCSIS 3.0 Applications


This integrated CATV upstream amplifier IC designed to meet the DOCSIS 3.0 requirements, while dissipating only 1.25W. The amplifier covers a 5MHz to 85MHz input frequency range (275MHz, 3dB bandwidth), and is capable of transmitting four QPSK modulated carriers, each at +58dBmV, simultaneously within this range.

Automotive 3-Axis Digital Output Gyroscope


Automotive digital output gyroscope with high accuracy and sensitivity over temperature and time.

28V Dual, Synchronous Step-Down Controller


The MAX15023 dual, synchronous step-down controller operates from a 5.5V to 28V or 5V ±10% input voltage range and generates two independent output voltages.

Temperature-Compensated MEMS RTC


This real-time clock IC has an integrated MEMs resonator offers extremely high accuracy ±5ppm (±0.432 Second/Day) from -40°C to +85°C, while also providing 236 bytes of battery backed up SRAM and many other features.

Tiny Secure, Accurate Charger for Single Cell Li+ Batteries


This charger delivers a complete fuel-gauging solution in a tiny 15mm2 footprint. It integrates a stand-alone fuel gauge, a single-cell Li+ protector, and a SHA-1-based challenge-response authentication system.

24-Bit, 6-Channel, 64ksps Delta-Sigma ADC


Low power, 1µA Sleep Current and Low Noise, 6.2nV/√Hz PGA

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


Simplest and Smallest Charging Solution for Hand-Held Equipment

Ultra-Low Power Stereo Audio Codec


Small, Ultra-Efficient, High-Performance, Stereo Codec with Integrated Headphone and Speaker Amps

SMBus 4-Channel Wide Dynamic Range Power Accumulator


This device automatically collects current-sense and voltage samples. The samples are then multiplied to obtain a power value and the power values are then accumulated. The device has a wide dynamic range to allow it to accurately measure power in systems that consume small to large amounts of power.

Highly Integrated Low Power Octal Ultrasound Transceiver


This fully-integrated octal ultrasound transceiver is optimized for high channel-count, high-performance portable and cart-based ultrasound systems. This transceiver allows the user to achieve high-end 2D and Doppler imaging capability using substantially less space and power.

RTD-to-Digital Converter with Fault Detection


Easy-to-use converter features integrated fault detection, high accuracy, and system cost-lowering integration.

White LED Step-Up Converter with I²C Interface in 2mm x 2mm WLP


This IC is a 60mA, 28V PWM DC-DC step-up converter with five low-dropout LED current regulators for display and keypad backlighting in cell phones, PDAs, and other portable devices.

Low-Power, Low-Noise Multichannel Sensor Signal Processor


A highly integrated, low-power, low-noise multichannel sensor signal processor optimized for process-control applications such as pressure sensing and compensation, RTD and thermocouple linearization, weight sensing and classification, and remote process monitoring with limit indication.

Human Body Temperature Sensor


Clinical-grade temperature sensor offers ±0.1°C accuracy for thermometer applications

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7A Sink/3A Source Current, 8ns, SOT23, MOSFET Driver


Accepts logic-input signals and drives a large external MOSFET, ideal for high-frequency switchers.

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Low-noise, Precision Voltage Reference


One of a family of precision voltage references with extremely low, 0.5ppm/°C typical temperature coefficients and excellent, ±0.02% initial accuracy. Versions available with preset output of 2.500V, 4.096V, and 5.000V.

Compact, Low-Cost 1S/2S Fuel Gauges


MAX17040/MAX17041 are ultra-compact, low-cost, host-side fuel-gauge systems for lithium-ion (Li+) batteries in handheld and portable equipment. The MAX17040 is configured to operate with a single lithium cell and the MAX17041 is configured for a dual-cell 2S pack.

30V Internal Switch LCD Bias Supply


Boost converter with 0.5A internal switch in a tiny 6-pin SOT23 package, accepts inputs as low as 0.8V.

Ultra-High-Precision, Ultra-Low-Noise, Voltage Reference


This precision voltage reference features curvature-correction circuitry and high-stability, laser-trimmed, thin-film resistors that result in 3ppm/°C (max) temperature coefficients and an excellent ±0.02% (max) initial accuracy.

Security Manager for Tamper-Reactive Cryptographic-Node Control with AES Encryption


A highly integrated device addressing the security requirements of high-end cryptographic systems and data-at-rest storage applications. The device employs a tamper-reactive dual AES cryptographic engine architecture.

IO-Link master transceiver


This IO-Link master transceiver is integrated with an auxiliary digital input and two linear regulators and is scalable to 16 channels.

DAS with SAR ADC, DACs, DPIOs, APIOs, Reference, Voltage Monitors, and Temp Sensor


A smart data acquisition system based on a SAR ADC. This device is highly integrated, offering an ADC, DACs, op amps, voltage reference, temperature sensors, and analog switches in the same device.

Dual Serial UART with 128-Word FIFOs


Data rates up to 24Mbps with high-speed SPI or I²C interface

Current-Limited Switch-Mode Li+ Charger Controller


This charger controller IC provides all functions needed to simply and efficiently charge 2-, 3-, or 4-series lithium-ion cells at up to 4A or more.

60V In, Ultra Small Design Footprint Switching Regulator provides 300mA


300mA, output current and up to 60V input, this ultra-small, high-efficiency, synchronous step-down DC-DC converter. This is the industry’s smallest high-voltage synchronous buck voltage regulator.

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12 Bit & 10 Bit Multichannel Low-Power, High Speed, SAR ADCs


Family of 12-/10-/8-bit 500 ksps SAR ADC's with industry-leading 1.5MHz , full linear bandwidth, low-power, serial output, and SampleSet channel sequencing.

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


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

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PMIC for Wearables and IoT Systems


Includes 7 ultra-low IQ voltage regulators and a linear battery charger for small Li+ systems.

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Tiny 500mA Step-Down DC-DC Switcher


This tiny, high efficiency step-down convert switches at 4MHz and consumes only 24uA of quiescent current. Designed for mobile applications.

36V, Input Common-Mode, High-Precision, Low-Power Current-Sense Amplifier


This current-sense amplifier offers precision accuracy specifications of 2µV VOS and gain error of 0.05%. It operates with a 1.7V to 5.5V single supply and is optimized for very low power operation with only 21µA of quiescent current.

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12V, Ultra-Low-IQ, Low-Dropout Linear Regulator with POK


Delivers Up to 200mA for Battery-Powered Applications

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6A, 2.4V to 5.5V Input, High-Efficiency Power Module


Provides fixed-frequency voltage regulator for space-constrained applications.

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4.5V to 42V, 1.7A High-Efficiency, DC-DC Step-Down Power Module with Integrated Inductor


Integrates components in a low-profile, thermally efficient, system-in-package (SiP).

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DeepCover Secure ECDSA Authenticator with ChipDNA PUF Protection


Cost-effective protection with ECDSA authentication, ChipDNA secured data, and 2kB EEPROM

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300mA, Buck Converter with 1.1μA IQ


This small, synchronous buck converter with integrated switches can deliver up to 300mA with input voltages from 3.5V to 24V, while using only 1.1μA quiescent current at no load.

Automotive High-Voltage, High-Brightness LED Controller


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

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Compact 4.5V to 36V Full-Bridge DC Motor Driver


Very low driver on-resistance reduces power dissipation in 3mm x 3mm TDFN-EP

Human Body Temperature Sensor


Sensor accurately measures temperature and provides overtemperature alarm/interrupts/shutdown output.

Octal High-Voltage Transmit/Receive Switches


These T/R switches are based on a diode bridge topology, and the amount of current in the diode bridges can be programmed by three digital inputs (S0, S1, and S2).

Digital Temperature Sensors and Thermal Watchdog


This temperature sensor accurately measures temperature and provides an overtemperature alarm/interrupt/shutdown output. Output is digital through an I²C-compatible 2-wire serial interface.

16-Bit, 500ksps, ±5V SAR ADC with Internal Reference in µMAX


Improves Measurement Quality with True Bipolar Range in a Small Size.

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Low-Voltage, ±0.5°C Accuracy Digital Thermometer and Thermostat


This digital thermometer and thermostat provides low-voltage temperature measurements with ±0.5°C accuracy from 0°C to +70°C and an operating temperature range of -55°C to +125°C.

3.12Gbps GMSL Deserializers


3.12Gbps GMSL Deserializers for Coax or STP Input and MIPI CSI-2 Output

Energy Measurement Processor for Load Monitoring Units


An energy measurement processor (EMP) for load monitoring and control of any 2-wire single-phase or 3-wire split-phase (120/180°) AC circuit.

Capacitor-Adjustable Nanopower Supervisory Circuits


125nA Supervisory Circuit with Capacitor-Adjustable Reset and Watchdog Timeouts

40V Input Step-Down Switching Controller


The MAX15046 synchronous step-down controller operates from a 4.5V to 40V input voltage range.

2-Wire Hall-Effect Sensor Interface IC


Saves space and cost in automotive applications

5-Channel Precision Temperature Monitor


This precision multichannel temperature sensor monitors its own temperature and the temperatures of up to four external diode-connected transistors.

7µA 1-Cell Fuel Gauge with ModelGauge m5 EZ


ModelGauge m5 EZ Eliminates Battery Characterization

Dual-Phase, Quick-PWM Controllers for IMVP-6+/IMVP-6.5 CPU Core Power Supplies


2/1-phase-interleaved Quick-PWM™ step-down VID power-supply controllers for notebook CPUs.

Ultra-Low Power Stereo Audio Codec


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

Octal Industrial Digital Input with Diagnostics and Digital Isolation


Enables Up to 50% smaller footprints, 60% lower power dissipation and 6X faster throughput

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Wearable Charge Management Solution


Includes a linear battery charger with smart power selector and power-optimized peripherals.

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24-Bit, 4-Channel, Simultaneous-Sampling, Sigma-Delta ADC


The device allows simultaneous sampling of as many as 32 channels using a built-in cascade feature to synchronize as many as eight devices. The serial interface of the MAX11040 allows reading data from all the cascaded devices using a single command.

Dual/Quad Camera Power Protector


ASIL-grade protector delivers up to 600mA load current to each of four output channels with high-side current limit and I2C diagnostics.

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1.7V, 0.9µA, Comparators with Built-in Reference

MAX40000, MAX40001

nanoPower Comparators in an Ultra-Tiny 0.76mm x 1.11mm Package

60V, No-Opto Isolated Flyback Controller


Compact, cost-effective, and easy-to-implement isolated DC-DC controller.

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Simplified Multichemistry SMBus Battery Charger


This multichemistry battery charger simplifies construction of smart chargers with a minimum number of external components. It uses the Intel System Management Bus (SMBus™) to control the charge voltage and charge current.

Tiny Ultra-Low Noise LDO


This ultra-low-noise, low-dropout (LDO) linear regulator can deliver up to 150mA continuous output current while achieving a low 120mV dropout for 120mA load current.

4V to 42V, 100mA, High-Efficiency, uSLIC Step-Down Power Module


0.9V to 5.5V output with integrated controller, FETs, inductor and compensation in a 2.6mm x 3mm x 1.5mm uSLIC package.

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60V In, Low parts count Switching Regulator provides 500mA


Providing output currents up to 0.5A, this synchronous step-down switching regulator handles input voltages of up to 60V. In addition, this product features very efficient internal synchronous FET switches so you can reduce your power supply board space to a minimum.

Design in EE-Sim

Industry's Most Integrated Metering ICs with Best-in-Class Accuracy Performance


4th-generation single-phase metering system-on-chip (SoC) ICs with MPU core, low-power RTC, and LCD driver. This IC supporst a wide range of metering applications with very few external components.

6-Channel, Low-Power, 3.75kVRMS SPI Digital Isolator


Each channel optimized for SPI, includes 10ns (typ) propagation delay

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


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

Ultra-Low Power PMIC with 3-Output SIMO and Charger Optimized for Small Li+ Batteries


Highly Integrated with Ultra-Low 6.5µA Operating Current

Low-Noise 500mA LDO Regulator in a 2mm x 2mm TDFN Package


Provides High 92dB PSRR at 5kHz for Handheld, Battery-Powered Devices

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Industrial, Octal, Digital Input Translator/Serializer


Robust, low power serialization of 24V digital signals to 5V minimizes optocouplers needed for isolation

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


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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Multichemistry Battery Charger with Automatic System Power Selector


Highly integrated control IC simplifies construction of accurate and efficient multichemistry battery chargers. Can be programmed by a host microcontroller (µC) or hardwired. High efficiency is achieved through use of buck topology with synchronous rectification.

High-Voltage Transmit/Receive Switch


This octal, high-voltage, transmit/receive (T/R) switches is based on a diode bridge topology and features . The amount of current in the diode bridges can be programmed through an SPI™ interface.

Ultra-Low-Power Arm® Cortex®-M3 with Wellness Sensor Analog Front-End, Advanced Hardware Security, 256KB Flash and 32KB SRAM


Very Accurate RTC With Integrated MEMs Resonator


This low-cost, extremely accurate I²C real-time clock (RTC) has an integrated temperature-compensated crystal oscillator (TCXO) and crystal and features ±3.5ppm accuracy from -40°C to +85°C.

SFF/SFP Laser Driver with Extinction Ratio Control


This laser driver is designed for multirate transceiver modules with data rates from 1Gbps to 4.25Gbps. Lasers can be DC-coupled to the MAX3738 for reduced component count and ease of multirate operation.

Micropower, Uni-/Bidirectional, Current-Sense Amplifiers


These low-cost, uni-/bidirectional, high-side, current-sense amplifiers are ideal for monitoring battery charge and discharge currents in portable equipment. These devices feature a wide -0.1V to +28V input common-mode voltage range, low 20µA supply current, and a gain accuracy better than 1.0%.

IO-Link Device Transceiver


This transceiver is suitable for IO-Link® devices and 24V binary sensors/actuators. All specified IO-Link data rates are supported.

225MHz to 3800MHz RF Power Amplifier Linearizer


The SC1894 is a fully adaptive, RFin/RFout predistortion linearization solution optimized for a wide range of amplifiers, power levels, and communication protocols.

Low-Power I2C Temperature Sensor in WLP Package


Local temperature sensor with ±2°C-accuracy and I2C/SMBus interface

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Ultra Small Voltage Doubler


Accepting input voltages from +2.0V to +5.5V, these switched-capacitor voltage doublers are highly efficient and ideal devices.

11.32Gbps Transceiver with Dual CDRs, Digital Monitors, and DC-Coupled Laser Driver


This 11.3Gbps, highly-integrated, low-power transceiver with dual CDRs, and digital diagnostics monitoring (DDM) is designed for next-generation SONET transmission systems.

IO-Link Device Transceiver


Integrates high-voltage functions commonly found in industrial sensors, including drivers and regulators

Wearable Power Management Solution for Primary Cells


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

2.75V to 4.8V Input, 10mA Output, 35μVRMS Ultra Low Noise and Ripple Boost Regulator


Compact boost with only 35µVRMS ripple and noise.

LED Backlight Driver with Wide Dimming Range


Meets automotive display brightness requirements

High-Efficiency, 1.5MHz Op Amps with RRIO


These are zero-drift operational amplifiers available in space-saving SC70 packages. They feature rail-to-rail CMOS inputs and outputs and zero-drift input offset voltage over time and temperature.

High Accuracy Voltage Output DAC with SPI Interface


This high-accuracy, 16-bit, serial SPI input, buffered voltage output digital-to-analog converter (DAC) in a 4mm x 5mm, 24-lead TQFN package features ±1 LSB INL (max) accuracy.

60V In, Low parts count Switching Regulator provides 1.7A


Providing output currents up to 1.7A, this synchronous step-down switching regulator handles input voltages of up to 60V. In addition, this product features very efficient internal synchronous FET switches so you can reduce your power supply board space to a minimum.

Design in EE-Sim

18-Bit, Low-Power, Multichannel, Oversampling Delta Sigma ADC


This is a low-power, multichannel, serial-output analog-to-digital converter (ADC) features matched 200µA current sources for sensor excitation. This ADC uses a sigma-delta modulator with a digital decimation filter to achieve 16-bit accuracy and has programmable gain.

Single, Quick-PWM, Step-Down Controller with Dynamic REFIN


High efficiency, excellent transient response, and high DC-output accuracy, accepts inputs as low as 2V.

High-Speed Precision Current-Sense Amplifier


This high-speed 60V precision unidirectional current-sense amplifier is ideal for a wide variety of power-supply control applications. Its high signal bandwidth allows its use within DC-DC switching converter power-supply control loops with minimal phase delay.

Ultrasmall, 60V In, Switching Regulator provides 100mA


This step-down switching regulator has a high input voltage range; internal synchronous switches and delivers up to 100mA out. It is available in two ultra small packages.

Design in EE-Sim

Extremely Accurate RTC With Memory


This real-time clock IC with integrated crystal is extremely accurate, It offers an SPI bus interface and 256 bytes of battery-backed SRAM, and features ±3.5ppm accuracy from -40°C to +85°C.

Ultra-Low Power Arm® Cortex® M4 with FPU Microcontroller for Wearables and IoT, with 2MB Flash and 512KB SRAM, and Advanced Cryptographic Hardware Engines


The MAX32630/MAX32631 feature an Arm® Cortex®-M4 with FPU CPU that delivers ultra-low power, high-efficiency signal processing functionality with significantly reduced power consumption and ease of use.

Development platform for MAX14871


This mbed®-compatible, Arduino® form factor shield allows rapid development of brushed DC motor applications. The shield contains four MAX14871 full-bridge DC motor drivers for driving up to 4 motors while two MAX5387 digital potentiometers provide the ability to set the motor current limit.

Industrial Power Himalaya Switching Regulators

Himalaya step-down regulators

These high-voltage (up to 60V), synchronous step-down DC-DC converters with integrated MOSFETs are accurate to within ±1.75% over the -40°C to +125°C temperature range. This family contains regulator ICs that can deliver output currents in the range of 25mA to 5A.

Industrial Power Step-down Power Modules

High-efficiency, high-voltage DC-DC step-down power modules

These power modules combine an efficient Maxim switching regulator, a fully shielded inductor, and numerous other passive components into one low-profile, thermally-efficient system-in-package (SiP). These modules operate over the industrial temperature range.

2.75kVRMS Isolated RS-485 Transceiver


Full-duplex, 500kbps RS-485 with ±35kV ESD protection and integrated transformer driver

Cold-Junction Compensated Thermocouple-to-Digital Converter


The MAX31855 performs cold-junction compensation and digitizes the signal from popular thermocouples. The data is output in a signed 14-bit, SPI-compatible, read-only format. This converter resolves temperatures to 0.25°C, allows readings as high as +1800°C and as low as -270°C.




Flexible RTC with Multiple Programmable Features and Low Current


Low-power clock/date device with two programmable time-of-day alarms and a programmable square-wave output and built-in backup supply switch

High-Precision Digital Thermometer and Thermostat


The DS7505 low-voltage (1.7V to 3.7V) digital thermometer and thermostat provides 9-, 10-, 11-, or 12-bit digital temperature readings over a -55°C to +125°C range with ±0.5°C accuracy over a -0°C to +70°C range.

500mA, 76V, High-Efficiency Step-Down DC-DC Converter


This easy-to-use, high-efficiency, high-voltage, step-down DC-DC converter operates from an input voltage up to 76V and consumes only 270µA quiescent current at no load.

Ultra Small Voltage Inverter Provides 200mA


Need -5V? This inverting charge pump circuits provides a negative Vin rail at up to 200mA.

12-Switch Matrix Manager for Automotive Lighting


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

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20-Port Programmable Mixed-Signal I/O with 12-Bit ADC, 12-Bit DAC


Configurable High-Voltage Mixed Signal I/O Device offers 20 mixed-signal high-voltage, bipolar ports configurable as ADC analog input, DAC analog output, a general-purpose input port (GPI) or general-purpose output port (GPO).

Ultra-Accurate Local Temperature Sensor


This IC converts the temperature measurements to digital form using a high-resolution, sigma-delta, analog-to-digital converter (ADC). Accuracy is ±0.5°C from -40°C to +105°C. Communication is through an I2C-compatible 2-wire serial interface.

2.5kVRMS Complete Isolated RS-485/RS-422 Module Transceiver + Power


Supports 25Mbps data rates while providing 60% DC-DC efficiency and ±35kV electrostatic discharge protection

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MAC/PHY Powerline Transceiver


This powerline communication (PLC) baseband modem delivers half-duplex, asynchronous data communication over AC power lines at speeds up to 300kbps (full FCC band data rate).

24-Bit Multi-Channel Low-Power 1.9ksps Delta-Sigma ADC with PGA


Optimized for Precision Sensor Measurement and More Efficient System Design

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High-Efficiency, Step-Up DC-DC Converter in TSOT packag


This step-up DC-DC converter is an ultra-small device featuring a low supply current of 1.5µA, making it optimal for a variety of handheld instruments.

Low-Power Transimpedance Amplifier for 10GBASE-SR Applications


This device is a low-power transimpedance amplifier incorporating an automatic gain control (AGC) architecture and is designed for optical transmission systems at data rates up to 10.3125Gbps and for use with PIN diodes.

4.6Gsps Cable Downstream Direct RF Synthesis DAC


This 14-bit, 4.6Gsps digital-to-analog converter (DAC) is designed for direct RF synthesis of multicarrier quadrature amplitude modulation (QAM) signals in cable modem termination systems (CMTS) and edge QAM (EQAM) devices.

Single-Phase Energy Measurement Processor


This is a single-core energy measurement processor for single-phase power supplies. It is designed specifically for real-time monitoring at the input of AC-DC power converters used in data centers and IT server rooms.

16-Bit, Low-Power, Buffered Output, Rail-to-Rail DAC


Less than 80µA IQ in 3mm x 5mm, 8-Pin µMAX

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


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.

DeepCover Secure SHA-3 Authenticator with ChipDNA PUF Protection


Simple, cost-effective protection with SHA3-256 crypto engine, ChipDNA secured data, and 2kB EEPROM

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Tiny Serial 12-Bit ADC


A tiny (2.1mm x 1.6mm), 12-bit, compact, high-speed, low-power, SAR ADC. This high-performance ADC includes a high-dynamic range sample-and-hold and a high-speed serial interface. Accepts a full-scale input from 0V to the power supply or to the reference voltage.

36V Step-Down Regulator with 3A Integrated Switches and 15μA Operating Current


This synchronous buck regulator with integrated high-side and low-side MOSFETs is designed to deliver up to 3A with input voltages from 3.5V to 36V, while using only 15µA quiescent current at no load. Voltage quality can be monitored by observing the PGOOD signal. The device can operate in dropout by running at 98% duty cycle, making it ideal for automotive applications.

Femtocell Radio Reference Design

Femtocell Radio Reference Design

This reference design is based on the MAX2550 and contains all of the relevant components necessary to design and build a competitive radio solution to support the base-station transceiver (BTS) frequency band: 1920MHz to 1980MHz (Rx) and 2110MHz to 2170MHz (Tx).

500mA, Low-Voltage Linear Regulator in µMAX


Delivers Low Input with ±1% Output Voltage Accuracy

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3-Output SIMO Buck-Boost Regulator with Power Sequencer and 3μA IQ


Always-on, low-power mini PMIC improves battery life by replacing inefficient LDOs and enables 15.5mm2 total solution size.

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RTD-to-Digital Temperature Sensor Interface


Provides 0.5°C total accuracy with fault detection and ±45V input protection

2.2MHz, 500mA Dual Step-Down Converter for Automotive Cameras


Ultra-small, 3.5V to 17V input, dual regulators includes high-side and low-side MOSFETs and 500mV enable hysteresis.

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小型、低電力2Msps/3Msps 12ビットADC



Multichannel Integrated Power Management IC


Highly integrated power management for computationally intensive platforms.

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Step-Up Converter for Handheld Applications


The MAX8969 is a simple 1A step-up converter in a small package that operates in any single-cell Li-ion application. This IC provides protection features such as input undervoltage lockout, short circuit, and overtemperature shutdown.

Transformer Driver Enables Efficient Isolated Power


This 1A push-pull transformer driver featuring integrated protection and an internal oscillator, making it the ideal device for isolated power supplies.



業界をリードする1.5MHz、完全リニア帯域幅、高速、低電力、12ビットシリアル出力の逐次比較型(SAR) ADCです。

Direct-Conversion DAB Tuner


Facilitates low-power, tuner-on-board designs

Optical Microcontroller


This 16-bit microcontroller with a unique peripheral set supports optical applications that require high-resolution conversion of many analog signals and digital signal processing (DSP) of those signals, high-speed data communication to an external host, and ultra-low power dissipation.

3.5V – 36V, 2A/3A, Synchronous Buck Converter with 15μA Quiescent Current and Reduced EMI


Reliable Operation (42V Input Transient Protection), Long Battery Life (15µA IQ) and EN55022 EMI Performance.

36V, 300mA Mini Buck Converter with 1.1µA IQ


Small, synchronous buck converter with integrated high-side and low-side switches.

28V Linear Li+ Battery Charger with Smart Autoboot Assistant


This intelligent, stand-alone constant-current, constant-voltage (CCCV), thermally regulated linear charger is designed for charging a single-cell lithium-ion (Li+) battery. This tiny charging solutions integrates many functions making it an ideal fit in smart phones, USB appliances, and Bluetooth equipment.

Octal, High-Speed, High-Side Switch/Push-Pull Driver


Robust 24V driver, capable of 200kHz switching rate

1A, 60V High-Efficiency, DC-DC Step-Down Power Module with Integrated Inductor


Enables cooler, smaller, simpler power-supply solutions.

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High-Output-Drive I/O Op Amp


Family of single/dual/quad, high-output-drive CMOS op amps feature 200mA of peak output current, rail-to-rail input, and output capability from single 2.7V to 5.5V supply.

Precision, Low-Power, 90µA, Single/Quad/Dual Op Amps


Ultra-precision, low-noise, zero-drift single/quad/ dual operational amplifiers featuring very low-power operation with a wide supply range. The devices incorporate a patented auto-zero circuit that constantly measures and compensates the input offset to eliminate drift over time and temperature as well as the effect of 1/f noise.

Ultra-Low-Power PMIC with 3-Output SIMO


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

Low-Power, High-Performance, Fully Integrated Octal Ultrasound Receiver


A fully integrated octal ultrasound receiver is optimized for high channel count, high-performance portable and cart-based ultrasound systems.

Low-Noise for High-Voltage Applications


This precision, low-noise, high performance op amp for high-voltage applications offers near-zero DC offset and drift through the use of patented chopper stabilized and auto-zeroing techniques.

16-bit DAS with Delta-Sigma ADC, DACs, UPIOs, RTC, Voltage Monitors, and Temp Sensor


This DAS is based on a 16-bit, sigma-delta ADC and system-support functionality for a microprocessor based system. This device integrates an ADC, DACs, op amps., internal selectable-voltage reference, temperature sensors, analog switches, a 32kHz oscillator, a real-time clock (RTC) with alarm and more.

3.12Gbps GMSL Serializers


Enables use of coax cables, reducing weight and cost of cabling in automotive infotainment.

4.5 to 60V, 5A, High-Efficiency Step-Down Converter


Includes integrated high-side MOSFET with output from 0.9V up to 0.9 x VIN in a 5mm x 5mm TQFN

Multichannel 16-bit Simultaneous-Sampling ADCs


Featuring independent track and hold (T/H) and SAR circuitry, these SAR ADCs provide simultaneous sampling at 250ksps for each channel and provide a high speed parallel output.

Switch-Mode Li+ Chargers JEITA Battery Temperature Monitoring


High-frequency, switch-mode chargers for a 1-cell lithium ion (Li+) or lithium polymer (Li-Poly) batteries. These ICs deliver up to 1.2A of current to the battery from 3.4V to 6.3V (MAX8900A/MAX8900C) or 3.4V to 8.7V (MAX8900B). Ideally suited to small portable devices such as headsets and ultra-portable media.

Femtocell Radio参考设计

Femtocell Radio参考设计


Compact, 14-Bit, 1.6Gbps GMSL Serializer


With line-fault detection and CRC protection of video and control data for ADAS.

25mA, Ultra-Small, High-Efficiency, Synchronous Step-Down DC-DC Converter


This high-efficiency, high-voltage, synchronous step-down DC-DC converter has integrated MOSFETs and operates over a 4V to 60V input and has an adjustable Switching Frequency range of 100kHz to 2.2MHz with external synchronization.

Design in EE-Sim

Low-Power, Fully Differential 20 bit SAR ADC


This ADC provides excellent static and dynamic performance with best-in-class power consumption that directly scales with throughput.

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3µA 1-Cell Fuel Gauge with ModelGauge


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

High-Performance, Ultra-Low Power ARM Cortex-M4F with FPU-Based Microcontroller for Rechargeable Devices


Ultra-Low Power Cortex-M4F for Wearable Medical and Fitness Applications

Low-Current I²C RTC with 56-Byte NV RAM


Low-power, full BCD real-time clock and calendar compatible with any 32.768kHz crystal.

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Single-Channel, Ultra-Low-Power, Delta-Sigma ADCs with Programmable Gain


Simple silicon pressure sensor-to-digital SPI bus interface. Nice solution for off board pressure sensor applications.

High-Efficiency Buck-Boost Regulator


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.

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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Evaluation Kit for the MAX1510


Evaluates the Low-Voltage DDR Linear Regulator

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Evaluation Kit for the MAX17651


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

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Full-Bridge DC Motor Driver Mbed Shield


Mbed-compatible, Arduino form-factor shield for brushed DC motor applications. Drives up to 4 motors with current regulation while operating from a single 7V to 36V power supply.

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Evaluation Kit for the MAXM17575 5V Output Application


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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PMIC for Multicore Applications with 13 Regulators, 8 GPIOs, RTC, and Power Sequencer


Complete power management IC for portable devices that use system-on-chip (SoC) application processors.

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Evaluation Kit for 4.5V to 24V, 300mA uSLIC Power Module for 1.5V Output Application


Integrated power solution providing 1.5V from a wide input range of 4.5V to 21.5V with up to 300mA of current.

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40MHz to 4GHz Linear Broadband Amplifier


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

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Evaluation Kit for 4V to 60V, 100mA uSLIC Power Module for 5V Output Application


Integrated power solution providing 5V from a wide input range of 14V to 60V with up to 100mA of current.

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18-Bit Precision Data Acquisition System


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

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Development Platform for the MAX32625 Arm® Cortex®-M4F MCU


Ultra-low-power with on-board PMIC, 512KB flash, and 160KB SRAM in a tiny 0.6in x 1.0in dual-row header board.

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Heart-Rate and Pulse-Oximetry Monitor


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

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DeepCover Embedded Security in IoT Authenticated Sensing and Notification


Demonstrates an authenticated data chain from a protected sensor node to a web server.

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Wearable ECG and Heart Monitor Evaluation and Development Platform


The MAX-ECG-MONITOR evaluation and development platform, featuring the MAX30003 clinical-grade AFE, analyzes data and accurately tracks heart signals (ECG and heart rate).

Evaluation Kit for the DS28E38 DeepCover Secure Authenticator


ECDSA asymmetric authentication with ChipDNA PUF protection and 2Kb user EEPROM.

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


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 Kit for Ultra-Low Power PMIC with 3-Output SIMO and Charger


Demonstrates the SIMO buck-boost regulator, linear regulator, analog multiplexer, smart battery charger, on/off controller, and I2C interface.

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Development Platform for the MAX32660 Arm® Cortex®-M4F MCU


Ultra-low power with 256KB flash and 96KB RAM for application and sensor code in a tiny, easy-to-use board.

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Arm® Mbed-Enabled Development Platform for the MAX32625 ARM Cortex®-M4F MCU


Includes prototyping area, Arduino-compatible connectors, 512KB flash, 160KB SRAM, USB interface, and GPIO devices.

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Rapid Development Platform for the MAX32630 Arm® Cortex®-M4F MCU


Ultra-low-power with on-board PMIC, 2MB flash, 512KB SRAM and peripherals in a tiny dual-row header board.

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Evaluation System for Precision Thermocouple to Digital Converter with Linearization


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

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7µA 1-Cell Fuel Gauge with ModelGauge m5 EZ


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

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Wearable, Galvanic Skin Response System


GSR measurement detects human skin impedance under different situations.

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Multichannel Integrated Power Management IC


Highly integrated power management for computationally intensive platforms.

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Building Automation Shield


Arduino form-factor, Mbed™-enabled shield, includes 0VDC-10VDC analog outputs, 4–20mA input/output, latching/nonlatching relays, RTC, and 1–Wire master.

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


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 4.5V to 60V, 300mA uSLIC Power Module for 5V Output Application


Integrated power solution providing 5V from a wide input range of 12V to 60V with up to 300mA of current.

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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.

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GPS/GNSS Ultra-Low-Noise-Figure LNA


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

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


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

Cryptographic Controller for Embedded Devices Development Platform

MAXQ1061 Evaluation Kit - Evaluates: MAXQ1061,MAXQ1061-KIT

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

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


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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Dual-Channel Current Sense Peripheral Module


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

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Evaluation Kit for GPS/GNSS Ultra-Low Current LNA


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

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


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

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


Protects IP and authenticates peripherals to Xilinx Zynq™ FPGAs.

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


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

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1-Wire Shield


A platform for interfacing with 1-Wire® devices, 1-Wire evaluation kits (EV kits), and iButton® devices.

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MAX44000PMB1: Peripheral Module


Ambient and Infrared Proximity Sensor Peripheral Module

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Universal Input Micro PLC


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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Evaluation Kit for the MAX66242 DeepCover Secure Authenticator


Includes ISO 15693, I2C, SHA-256 tag/transponder with 4Kb user EEPROM, RF/I2C interface and energy harvesting.

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1-Wire Grid-Eye Sensor


Sensing solution featuring the Panasonic AMG8833 Grid-EYE® and the Maxim 1-Wire® bus, enabled by the DS28E17.

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Serial Communications Module for Evaluation Kits


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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Turnkey PCI-PTS Mobile POS (MPOS) Terminal


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

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MAX30205 Evaluation System


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

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Development Platform for the MAX32630 Arm Cortex®-M4F MCU


Ultra-low power for wearables with 2MB flash, 512KB SRAM, and peripherals in a small, easy-to-use board.

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4–20mA Loop-Powered Temperature Sensor with Hart


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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16-Bit Four-Channel Analog Input Micro PLC Card


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

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5.1µA 1-Cell Fuel Gauge with ModelGauge m5 EZ and Optional High-Side Current Sensing


Evaluates the stand-alone ModelGauge™ m5 host-side fuel-gauge ICs for lithium-ion (Li+) batteries in handheld and portable equipment.

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


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

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DeepCover Secure Authenticator Demonstration Kit


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

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Smart Force Sensor


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

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


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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24-Bit Weigh Scale


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.

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Heart-Rate and Activity Monitor Evaluation and Development Platform


The MAX-HEALTH-BAND wrist-worn heart-rate and activity monitor provides a simplified means to extract high-accuracy vital signs and raw data from health sensors for wearable designs.

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


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

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


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

Health Sensor Platform


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


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

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


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.

Display Driver Shield


Arduino form-factor shield daisy-chains four MAX7219 LED drivers to drive a 16x16 LED array for signage applications.

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Evaluation Kit for the MAXM17574 5V Output Application


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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Development Platform for the Ultra-Low Power Microcontroller for Wearables


Power-optimized Arm® Cortex®-M4F. Optimal Peripheral Mix Provides Platform Scalability. On-Board Bluetooth® 4.0 BLE Transceiver with Chip Antenna.

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Evaluation Kit for the DS28E25 and DS2465 DeepCover Secure Authenticators


SHA-256 bidirectional authentication with 4Kb user EEPROM and 1-Wire interface.

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Evaluation Kit for the MAX44298


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

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Evaluation Kit for WPC/PMA Dual Mode Wireless Power Receiver


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 the MAXM17761 5V Output-Voltage Application


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 4V to 24V, 100mA uSLIC Power Module for 5V Output Application


Integrated power solution providing 5V from a wide input range of 10V to 24V with up to 100mA of current.

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ECT/EPT Current Fault Sensor


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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Pmod Adapter for Arduino Platform


Arduino to Pmod shield with integrated level-shifting and pin-multiplexing.

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Pocket IO™ PLC Development Platform


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

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MAX66242 DeepCover安全认证器评估套件


包括ISO 15693、I2C、SHA-256标签/应答器,带4Kb用户EEPROM、RF/I2C接口和能量收集。

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Isolated Power Supply Reference Design


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

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


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

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Evaluation System for Optical Pulse Oximeter and Heart-Rate Sensor


Allows flexible configurations to optimize measurement signal quality with minimal power consumption.

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


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

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


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.

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


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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Evaluation Kit for the MAX44284


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

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4-Port IO-Link Master


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


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 3.3V 33W Power Supply


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

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


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

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Isolated 24V to 5V, 12.5W No-Opto Flyback Power Supply


Compact 24V input module with secondary-side synchronous MOSFET driver that features 5V at 2.5A output.

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