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Healthcare sensor ICs use current or optics to sense the human body’s vital signs. Typically, these biosensors condition the signal and send it to a microprocessor for storage, calculation, or display by a health monitoring device.

Our healthcare sensor solutions are ideal for portable medical and wellness applications, as well as wearable medical and fitness applications. Low-power operation fosters longer battery life. These highly integrated sensor ICs reduce the total solution chip count by including analog front-ends (AFEs), ADCs, and ESD/EMI protection circuitry with key features such as:

  • Clinical-grade performance for temperature and ECG measurements
  • High dynamic range AFEs with low SNR
  • Complete optical modules for a variety of applications
  • Built-in algorithms

Biopotential Sensor ICs

Maxim’s biopotential sensor ICs deliver highly integrated analog front-end (AFE) solutions for c...

Optical Health Sensors

Maxim’s optical sensor solutions include small, highly integrated optical modules, high SNR AFEs...

Electrochemical Sensor AFE ICs

Learn about Maxim’s ultra-low-power electrochemical sensor AFE ICs, suitable for use in continuo...

Wearable Temperature Sensor ICs

Maxim’s wearable temperature sensor ICs offer clinical-grade accuracy, lowest power draw, smalle...

Featured Videos


ECG, PPG, and Temperature Sensing Development Platform
4:57 October 26, 2020


Introducing the MAX-HEALTH-BAND Heart Rate and Activity Monitor
7:58 June 22, 2018


Introducing the MAX-ECG-MONITOR Wearable ECG and Heart Monitor
5:17 June 22, 2018

Featured Products

MAX86176 Ultra-Low-Power, Optical PPG and Single-Lead ECG AFE

The MAX86176 is a complete photoplethysmogram (PPG) and electrocardiogram (ECG) analog front-end...

PPG (MAX86176)

  • Complete Dual-Channel Optical-Data Acquisition System
  • Ultra-Low-Power Operation for Wearable Devices
    • Optical Readout Channel < 11μA (typ) at 25fps
    • 14.6μs to 117.1μs ADC Integration Time
    • Low Shutdown Current < 1μA (typ)
  • Signal to Noise Ratio (SNR) up to 110dB with Average (Avg) Mode and Off-Chip Filtering
  • Supports Frame Rates from 1fps to 2kfps
  • High-Resolution 20-bit Charge-Integrating ADCs
  • Low Dark-Current Noise of < 50pARMS
  • Excellent Ambient Range and Rejection Capability
    • > 100μA Ambient Photodiode Current
    • > 90dB Ambient Rejection at 120Hz (Avg > 2)

ECG (MAX86176/MAX30005)

  • Clinical-Grade ECG AFE with High-Resolution ADC
    • 15.6 ENOB with 0.6μVRMS Noise over 0.05Hz to 40Hz
  • Very Low Input-Bias Current (-40°C to +85°C)
    • 233fARMS Input-Current Noise (0.05Hz to 40Hz, TA = +25°C)
  • Fully Differential Input Structure with CMRR > 110dB at Power-Line Frequencies
  • High-Input Impedance > 1GΩ for Extremely Low Common to Differential-Mode Conversion
  • High DC-Offset Range of ±1300mV (typ 1.8V) Allows a Wide Variety of Electrodes to be Used
  • High AC-Dynamic Range of > 90mVP-P Helps Prevent Saturation in the Presence of Motion
  • ECG Biopotential Channel Can Be Used for Some EEG Applications
    • Higher-Gain Ranges Available (480V/V, 960V/V)
    • Low Input-Referred Voltage and Current Noise Enables Use of Small-Area Dry Electrodes

SYSTEM

  • Shutdown Current of 0.5μA (typ)
  • 256-Word FIFO for ECG and PPG
  • True Synchronous ECG and PPG Data from Dedicated Signal Paths
  • Two Fully Configurable Interrupts
  • High-Speed SPI Interface or I2C Interface
  • Small 2.728mm x 2.708mm WLP Package
MAXM86146 Complete Optical Biosensing Module with Ultra-Low-Power Biometric Sensor Hub

MAXM86146 Complete Optical Biosensing Module with Ultra-Low-Power Biometric Sensor Hub

The MAXM86146 is the world’s smallest highly-integrated, optical data acquisition system. It com...
  • Complete Biometric Sensor Hub
    • Supports Simultaneous Wrist-Based Pulse Heart Rate (WHRM) and Pulse Blood Oxygen Saturation (WSpO2) Measurements
    • Integrated MAX86141 Dual-Channel Optical AFE
    • Integrated MAX32664C Arm® Cortex®-M4 based MCU
    • Two Integrated 3.8mm2 PIN Photodiodes
      • Can Operate Independently (Two Channels)
      • Can Be Combined to Give a Total Radiant Area of 7.6mm2 for Additional Flexibility
    • Excellent SNR Enables Measurements on a Wide Range of Users
      • Dynamic Range > 90dB in White Card Loop- Back Test (Sample-to-Sample Variance)
      • Dynamic Range Extendable to > 104dB for SpO2 and > 110dB for HRM with Multiple Sample Modes and On-Chip Averaging
    • Convenient Solution Enables Faster Time-to-Market
    • Ultra-Small 4.5mm x 4.1mm x 0.88mm, 38-Pin OLGA Package Size
  • World-Class Algorithm for Wearable Applications
    • Supports Multiple Accelerometer Options to Allow Robust Detection and Rejection of Motion Artifacts
    • Both Raw and Processed Data are Available
    • FIFO Provides Minimal Host Interaction
    • Ultra-Low Power for Body Wearable Devices
      • AFE Only Requires 10μA Typical at 25sps
      • MCU Supports Deep-Sleep Mode, Allowing Device to Sleep Between Measurements.
      • Automatic Exposure Control (AEC) Algorithm Adjusts the Optical AFE Settings, Maximizing SNR while Minimizing Power Consumption
MAX30208 ±0.1°C Accurate, I<sup>2</sup>C Digital Temperature Sensor

MAX30208 ±0.1°C Accurate, I2C Digital Temperature Sensor

The MAX30208 operates from a 1.7V to 3.6V supply voltage, and is a low-power, high-accuracy digi...
  • High Accuracy and Precision
    • ±0.1° C Accuracy from +30°C to +50°C
    • ±0.15°C Accuracy from +0°C to +70°C
  • Low Power Consumption
    • 1.7V to 3.6V Operating Voltage
    • 67μA Operating Current During Measurement
    • 0.5μA Standby Current
    • 15ms Integration Time
  • Small Size
    • 2mm x 2mm x 0.75mm, 10-Pin Thin LGA
  • Safety and Compliance
    • High and Low Temperature Alarms
  • Digital Interface
    • Configurable Convert Temperature Input Pin
    • Configurable Interrupt Output Pin
    • 32-Word FIFO for Temperature Data
    • 4 I2C Addresses Available—More Addresses Available by Request
    • Unique ROM IDs Allow Device to be NIST Traceable
MAX86140 Best-in-Class Optical Pulse Oximeter and Heart-Rate Sensor for Wearable Health

MAX86140 Best-in-Class Optical Pulse Oximeter and Heart-Rate Sensor for Wearable Health

The MAX86140/MAX86141 are ultra-low-power, com- pletely integrated, optical data acquisition sys...
  • Complete Single-Channel, Optical Data Acquisition System
  • Optimized Architecture for Transmissive and Reflective Heart Rate or SpO2 Monitoring
  • Low Dark Current Noise of < 50pA RMS (Sample to Sample Variance)
  • Lower Effective Dark Current Noise Achievable Through Multiple Sample Modes and On-Chip Averaging
  • High-Resolution, 19-bit Charge Integrating ADC
  • Three Low-Noise, 8-Bit LED Current DACs
  • Excellent Dynamic Range >89dB in White Card Loop-Back Test (Sample-to-Sample Variance)
  • Dynamic Range Extendable to >104dB for SpO2 and >110dB for HRM with Multiple Sample Modes and On-Chip Averaging
  • Excellent Ambient Range and Rejection Capability
    • > 100µA Ambient Photodetector Current
    • > 70dB Ambient Rejection at 120Hz
  • Ultra-Low-Power Operation for Body Wearable Devices
    • Low-Power Operation, Optical Readout Channel <10µA Typical at 25sps
    • Short Exposure Integration Period of 14.8µs, 29.4µs, 58.7µs, 117.3µs
    • Low Shutdown Current = 0.6µA (typ)
  • Rejection of Fast Ambient Transients
  • Miniature 2.048 x 1.848mm, 5 x 4 0.4mm Ball Pitch WLP
  • -40°C to +85°C Operating Temperature Range

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

The MAX86171 is an ultra-low-power optical data acquisition system with both transmit and receiv...
  • Complete Dual-Channel Optical Data Acquisition System
  • Ultra Low-Power Operation for Wearable Devices
    • Low-Power Operation, Optical Readout Channel < 11μA at 25fps
    • Exposure Integration Period Ranging from 14.6μs to 117.1μs
    • Low Shutdown Current < 1μA
  • Excellent Top-End Dynamic Range > 91dB in White Card Loop-Back Test (Nyquist Sample-to-Sample Variance)
  • Extended Dynamic Range up to 110dB (Averaging and Off-Chip Filtering)
  • Supports Frame Rates from 1fps to 2.9kfps
  • High Resolution 19.5-Bit Charge Integrating ADCs
  • Supports Four PD Inputs for Multi-Parameter Measurements
  • Supports Nine LED Driver Output Pins Generated from Three 8-Bit LED Current Drivers
  • Low Dark Current Noise of < 50pA RMS (Sample-to-Sample Variance in 117.1μs Integration Time)
  • Excellent Ambient Range and Rejection Capability
    • > 100μA Ambient Photodetector Current
    • > 70dB Ambient Rejection at 120Hz (Average Mode > 2)
  • Miniature 2.78mm x 1.71mm, 7 x 4 0.35mm Ball Pitch WLP Package
  • -40°C to +85°C Operating Temperature Range
MAXM86161 Single-Supply Integrated Optical Module for HR and SpO<sub>2</sub> Measurement

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

The MAXM86161 is an ultra-low-power, completely integrated, optical data-acquisition system. On ...
  • Complete Single-Channel Optical Data Acquisition System
  • Built-In Algorithm Further Enhances Rejection of Fast Ambient Transients
  • Optimized Architecture for Reflective Heart Rate and SpO2 Monitoring
  • Low Dark Current Noise of < 50pA RMS (Sample-to-Sample Variance)
  • Lower Effective Dark Current Noise Achievable through Multiple Sample Modes and On-Chip Averaging
  • High-Resolution 19-bit Charge Integrating ADC
  • Three Low-Noise 8-Bit LED Current DACs
  • Excellent Dynamic Range > 89dB in White Card Loop-Back Test (Sample-to-Sample Variance)
  • Excellent Ambient Range and Rejection Capability
    • > 100μA Ambient Photodetector Current
    • > 70dB Ambient Rejection at 120Hz
  • Ultra-Low-Power Operation for Wearable Devices
    • Low-Power Operation, Optical Readout Channel < 10μA, Typical at 25sps
    • Short Exposure Integration Period of 14.8μs, 29.4μs, 58.7μs, 117.3μs
    • Low Shutdown Current = 1.6μA (typ)
  • Miniature 2.9mm x 4.3mm x 1.4mm, 14-pin OLGA Package
  • -40°C to +85°C Operating Temperature Range

Reference Designs

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MAXREFDES220

Quickly prototype designs that measure finger-based heart rate and SpO2 .
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MAXREFDES104#: Health Sensor Platform 3.0

Enables quick evaluation of our portfolio of wearable products to significantly shorten the deve...
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MAXREFDES103#: Health Sensor Band

Demonstrates the high sensitivity and algorithm processing functions of health-sensing applicati...
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MAX30134EVSYS

Provides a single platform to evaluate DC current and EIS measurement capabilities.
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MAXM86161EVSYS

Allows quick evaluation of the MAXM86161 integrated optical module for applications at various s...
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MAX30208EVSYS

Provides a single platform to evaluate the MAX30208 temperature sensor with ±0.1°C accuracy.
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MAX30205EVSYS

Includes USB-to-I2C controller and GUI program to simplify evaluation
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MAX86140EVSYS

Allows flexible configurations to optimize measurement signal quality with minimal power consump...
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MAX30001EVSYS

Offers several configurations to enable a variety of measurements including ECG, BioZ and Pace D...