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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
Featured Videos
Introducing the MAX-ECG-MONITOR Wearable ECG and Heart Monitor
5:17 June 22, 2018
Introducing the MAX-HEALTH-BAND Heart Rate and Activity Monitor
7:58 June 22, 2018
Application Notes
Tutorials
Featured Blogs
Wearable Flags Health Changes in Seniors Via Biosensors and Predictive Analytics
Biosensors Detect Sleep Apnea Via Wearable, Home-Based Test
Can Wearable Health Technology Pinpoint Disease Onset?
Getting a Finger on the Pulse of Well-Being
Got a Wearable Health Design Idea? Here’s How to Make It Accurate
Complete Wrist-Based Heart-Rate SpO2 Sensor Reference Design
Design Solutions
User Guides
Customer Testimonials
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
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, 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
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 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
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
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, 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
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 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
MAXREFDES104#: Health Sensor Platform 3.0
Enables quick evaluation of our portfolio of wearable products to significantly shorten the deve...
MAXREFDES103#: Health Sensor Band
Demonstrates the high sensitivity and algorithm processing functions of health-sensing applicati...
MAX30134EVSYS
Provides a single platform to evaluate DC current and EIS measurement capabilities.
MAX30208EVSYS
Provides a single platform to evaluate the MAX30208 temperature sensor with ±0.1°C accuracy.
MAXM86161EVSYS
Allows quick evaluation of the MAXM86161 integrated optical module for applications at various s...
MAXREFDES220
Quickly prototype designs that measure finger-based heart rate and SpO2 .
MAX30205EVSYS
Includes USB-to-I2C controller and GUI program to simplify evaluation
MAX86140EVSYS
Allows flexible configurations to optimize measurement signal quality with minimal power consump...
MAX30001EVSYS
Offers several configurations to enable a variety of measurements including ECG, BioZ and Pace D...
MAXREFDES104#: Health Sensor Platform 3.0
Enables quick evaluation of our portfolio of wearable products to significantly shorten the deve...
MAXREFDES103#: Health Sensor Band
Demonstrates the high sensitivity and algorithm processing functions of health-sensing applicati...
MAX30134EVSYS
Provides a single platform to evaluate DC current and EIS measurement capabilities.
MAX30208EVSYS
Provides a single platform to evaluate the MAX30208 temperature sensor with ±0.1°C accuracy.
MAXM86161EVSYS
Allows quick evaluation of the MAXM86161 integrated optical module for applications at various s...
MAXREFDES220
Quickly prototype designs that measure finger-based heart rate and SpO2 .
MAX30205EVSYS
Includes USB-to-I2C controller and GUI program to simplify evaluation
MAX86140EVSYS
Allows flexible configurations to optimize measurement signal quality with minimal power consump...
MAX30001EVSYS
Offers several configurations to enable a variety of measurements including ECG, BioZ and Pace D...
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