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MAX30101

MAX30101

Maxim Integrated / Analog Devices
Another MAX family optical sensor IC used in wearable pulse and SpO2 applications.
3,986 in stock
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Overview

The MAX30101 is an integrated optical sensor IC from Maxim Integrated (Analog Devices) intended for wearable heart-rate and pulse-oximetry (SpO2) applications. It combines LEDs, photodetectors, and analog front-end circuitry in a small package and provides a digital interface for OEM system integration. The device is designed for low-power, compact health-monitoring designs used on wrists or fingers.

Why Choose This Part

The MAX30101 integrates LEDs, photodiodes, and the analog front end to reduce discrete component count and simplify PCB layout. Its small package and power-optimized design make it suitable for battery-powered wearables. A digital interface lets designers offload signal processing to a host MCU or use community drivers to accelerate development.

Applications

Wearable heart-rate monitors
Continuous heart-rate measurement in smartwatches and fitness bands where small size and low power matter.
Pulse oximetry (SpO2) sensors
Reflectance SpO2 measurement in fingertip or wearable form factors for consumer and clinical-adjacent devices.
Fitness trackers
Activity and physiological monitoring where optical pulse sensing is used alongside motion sensors.
Smart rings and wristbands
Compact, low-power optical sensing for devices with constrained PCB area and battery capacity.
Remote health-monitoring modules
Integration into IoT health nodes and telemetry devices that stream heart-rate or SpO2 data.

Getting Started

Start with a MAX30101 breakout or an evaluation board from major hobbyist suppliers to avoid PCB-level assembly. Connect the board to a microcontroller or single-board computer over I2C and look for community Arduino and Python example libraries (SparkFun, GitHub) to test basic heart-rate and SpO2 reads. Use a low-noise board layout and follow recommended grounding and LED drive guidance from the vendor datasheet for reliable optical measurements.

Part of MAX30100 / MAX30102 Pulse Oximetry family » MAX30101

MAX30101 Family

Part NumberDifferenceStock
MAX30101EFD+T (Analog Devices Inc./Maxim Integrated) EFD+T 7,846
MAX30101WING# (Analog Devices Inc./Maxim Integrated) WING# 3

Also Consider

MAX30102 Analog Devices / Maxim Integrated - Very similar integrated optical heart-rate and SpO2 sensor from the same family - good drop-in alternative for wearable designs.