New Product Introduction

Maxim Integrated MAXREFDES220#

MAXREFDES220# - finger heart rate and pulse oximeter smart sensor with digital signal processing

Top side of Maxim's MAXREFDES220# smart sensor

The MAXREFDES220# reference design provides everything you need to quickly prototype your product to measure finger-based heart rate and blood oxygen saturation level (SpO2).

The MAX30101 and the MAX32664 provide an integrated hardware and software solution for multiple finger-based applications. The MAX32664 firmware provides digital signal processing to process the data. The reference design also includes a tri-axis accelerometer to compensate for motion artifacts.

A MAX32630FTHR is provided to emulate a host system for easy development.

 

Key features

  • MAX30101 Heart Rate Monitor and Pulse Oximeter
    • Tiny 5.6mm × 3.3mm × 1.55mm 14-Pin Optical Module
    • Integrated Cover Glass for Optimal, Robust Performance
    • Ultra-Low Power Operation for Mobile Devices (< 1mW)
    • Programmable Sample Rate and LED Current for Power Savings
    • High SNR (Signal-to-Noise) ratio, typically greater than 80dB
  • MAX32664 Sensor Hub
    • Maxim-licensed firmware provides complete algorithmic support for finger heart rate and blood oxygen saturation calculations
    • Communicates with host controller over industry standard I2C interface
    • Secure firmware updates authenticated by dedicated bootloader
  • 3-Axis Accelerometer Provides Greater Accuracy
    • Compensates for motion artifacts

 

Wearable on a woman's arm. Table with measurement details.Applications

  • Portable Medical Devices
  • Telemedicine
  • Sensor Hubs
  • Android or IOS devices

 

Block diagram

System diagram for MAXREFDES220 finger heart rate and pulse oximeter smart sensor

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