MAXREFDES220#: Smart fingertip heart rate meter and pulse oximeter with signal processing function

The reference design MAXREFDES220# helps users quickly build finger-based heart rate and blood oxygen saturation measurement products.

The MAX30101 and MAX32664 provide integrated hardware and software solutions for a variety of finger-based applications. The MAX32664's firmware provides the digital signal processing functions required to process the data. The reference design also includes a three-axis accelerometer to compensate for motion artifacts.

A reference design is provided for the MAX32630FTHR for evaluation of host systems and ease of development.

Design documents, firmware and software can be downloaded on the Design Resources tab. Users can purchase circuit boards for evaluation.

characteristic

• Tiny, 5.6mm × 3.3mm × 1.55mm, 14-pin optical module

• Integrated glass cover for optimal and reliable performance

• Extremely low power consumption for mobile devices (<1mW)

• Programmable sampling rate and LED current to save power consumption

• High signal-to-noise ratio, typically higher than 80dB

• MAX32664 sensor concentrator

• Equipped with Maxim-authorized firmware and built-in complete algorithms, it supports the calculation of fingertip heart rate and blood oxygen saturation.

• Communicates with the host controller via a standard I2C ^interface

• Secure firmware updates guaranteed by dedicated bootloader 3-axis accelerometer further improves accuracy

• Motion artifact compensation




application

• Portable medical equipment

• Telemedicine

• sensor concentrator

• Android or iOS device