System Board 6663

MAXREFDES1043: How to Monitor SpO2 Levels Using the MAX30102

 Download Reference Design Document

Designed, Built, Tested

The Reference Design Document describes the hardware pictured below. It provides a detailed systematic technical guide to designing a device for measuring SpO2 using MAX30102. The hardware was built according to the linked Schematic, Bill of Materials and PCB Artwork. It was tested by Maxim’s expert applications engineering team in a state-of-the-art design lab and the Test Results are fully documented. Downloadable ECAD/EDA files are available in 7 different formats including OrCAD, Altium, Mentor DX Designer, Eagle and more.


The MAXREFDES1043 is designed for SpO2 measurements based on Maxim’s new-generation biosensor—the MAX30102. The MAXREFDES1043 is a high-accuracy, low-power, small-size, and easily implemented design that can monitor SpO2 levels using red and IR LEDs. The MAX30102 is an integrated pulse oximetry and heart-rate monitor module. It includes internal LEDs, photodetectors, optical elements, and low-noise electronics with ambient light rejection. The MAX30102 provides a complete system solution to ease the design-in process for mobile and wearable devices. It operates on a single 1.8V power supply and a separate 3.3V power supply for the internal LEDs. Communication is through a standard I2C-compatible interface. The module can be shut down through software with zero standby current, allowing the power rails to remain powered at all time.

Key Features

  • Integrated solution
  • Small size
  • Low power
  • High accuracy
MAXREFDES1043 hardware top (above) and bottom (below). Enlarge+

This board is not available for purchase.


Test Results

View PDF

Bill of Material

View PDF

Reference Design Document

View PDF


High-Sensitivity Pulse Oximeter and Heart-Rate Sensor for Wearable Health

  • Heart-Rate Monitor and Pulse Oximeter Biosensor in LED Reflective Solution
  • Tiny 5.6mm x 3.3mm x 1.55mm 14-Pin Optical Module
  • Ultra-Low Power Operation for Mobile Devices