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MAXREFDES220#: Finger Heart Rate and Pulse Oximeter Smart Sensor with Digital Signal Processing

MAXREFDES220

参考设计免责声明 参照  重要声明和免责声明  涵盖参考设计和其他Maxim资源

描述

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

The MAX30101 and the MAX32664 provide an integrated hardware and software solution for multiple finger-based applications. The MAX32664 firmware provides algorithm output.

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

Design files, firmware, and software can be found on the Design Resources tab. The board is also available for purchase.

特征

  • 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, >80dB (typ)
  • MAX32664 Sensor Hub
    • Maxim-Licensed Firmware for Complete Algorithmic Support of: 1) Finger Heart-Rate and Blood Oxygen Saturation Calculations or 2) BPT, Heart-Rate, and Blood Oxygen Saturation Calculations
    • Industry-Standard I2C Interface for Communication with Host Controller
    • Dedicated Bootloader Authenticates Secure Firmware Updates
  • 3-Axis Accelerometer
    • Provides Greater Accuracy
    • Compensates for Motion Artifacts

  • maxrefdes220-fig01

    maxrefdes220-fig01

  • MAXREFDES220

    This reference design has what you need to quickly prototype your product to measure finger-based heart rate and SpO2.<br><br> MAXREFDES220

  • maxrefdes220fig01

    maxrefdes220fig01

Icon

设计, 制作, 测试

图中的电路板已经完成封装和测试。

 

所有设计文件

示意图

物料清单(BOM)

Gerber Files

Project Files

细节部分

细节部分

Introduction

The MAXREFDES220# provides detailed design information for using Maxim devices to quickly implement the measurement of heart rate, SpO2, and BPT using reflective photoplethysmography (PPG).

The MAX30101 operates from a 1.8V power supply and a separate 5.0V power supply for the internal LED. Many device parameters are configurable using the MAX32644. The module can be shut down through software with zero standby current, allowing the power rails to remain powered at all times.

The MAX32664 is a small, low-cost, power-optimized sensor hub for finger-based applications using the MAX30101. The hub collects and processes the output of the PPG and accelerometer transparently through a dedicated I2C interface. A second, standard-mode I2C interface connects to the host through a dedicated command set. The MAX32664A version is for heart rate and SpO2, whereas the MAX32664D version is a superset of the MAX32664A with an added BPT feature. The MAXREFDES220# can be programmed to accommodate either of the versions.

A Windows®-based GUI configures the sensors and graphically displays raw and processed heart-rate and SpO2 data. It also provides the ability to collect and log sensor output for offline evaluation. The MAXREFDES220# may also be reprogrammed with the BPT, heart rate, and SpO2 firmware, and an Android app is used to display those results.

The included MAX32630FTHR board emulates a host system for easy development. Source code for the MAX32630FTHR firmware is available on the Arm® Mbed site to allow customers to implement their own custom host on any platform.

As with all Maxim reference designs, the bill of materials (BOM), schematics, layout files, Gerber files, firmware, and software are all available online.

System Diagram

参数化

输入类型 Vin(Min) Vin(Max) Iout(Max) 单路/多路输出 Vout(V) Pout(W) 隔离/非隔离 拓扑
DC 1.8 - - - - - - -

参数化

输入类型 DC
Vin(Min) 1.8
Vin(Max) -
Iout(Max) -
单路/多路输出 -
Vout(V) -
Pout(W) -
隔离/非隔离 -
拓扑 -

Maxim设备 (2)

器件号 名称 产品线 购买 设计套件和评估模块
MAX30101 用于可穿戴健康设备的高灵敏度脉搏血氧仪和心率传感器 传感器接口IC 立即购买 Design Kits
MAX32664 超低功耗生物识别传感器集中器 传感器接口IC 立即购买 Not Available

Maxim设备 (2)

器件号 产品线
传感器接口IC
用于可穿戴健康设备的高灵敏度脉搏血氧仪和心率传感器
传感器接口IC
超低功耗生物识别传感器集中器
Not Available

设计资料 (14)

标题 类型 尺寸 日期
maxrefdes220-bom XLSX 12KB 2019-10-30
maxrefdes220-all ZIP 9MB 2020-05-08
maxrefdes220-gerber ZIP 197KB 2019-10-30
Composite Drawing PDF 2MB 2019-10-30
Schematic Prints PDF 1MB 2019-10-30
maxrefdes220_all_design ZIP 30MB 2019-07-09
maxrefdes220_bom_ra PDF 58KB 2019-07-09
maxrefdes220_hardware_files ZIP 2MB 2019-07-09
maxrefdes220_r_p1_gerberfiles_ra ZIP 105KB 2019-07-09
Composite Drawing PDF 1MB 2019-07-09
Schematic Prints PDF 1MB 2019-07-09
maxrefdes220_max32630fthr_host ZIP 92KB 2019-07-09
setupppg_evkit_5.3.04238.0_win10 ZIP 28MB 2019-07-09
maxrefdes220-prj ZIP 5MB 2020-05-08
日期 类型
2019-10-30

maxrefdes220-bom

(XLSX, 12KB)

2020-05-08

maxrefdes220-all

(ZIP, 9MB)

2019-10-30

maxrefdes220-gerber

(ZIP, 197KB)

2019-10-30

Composite Drawing

(PDF, 2MB)

2019-10-30

Schematic Prints

(PDF, 1MB)

2019-07-09

maxrefdes220_all_design

(ZIP, 30MB)

2019-07-09

maxrefdes220_bom_ra

(PDF, 58KB)

2019-07-09

maxrefdes220_hardware_files

(ZIP, 2MB)

2019-07-09

maxrefdes220_r_p1_gerberfiles_ra

(ZIP, 105KB)

2019-07-09

Composite Drawing

(PDF, 1MB)

2019-07-09

Schematic Prints

(PDF, 1MB)

2019-07-09

maxrefdes220_max32630fthr_host

(ZIP, 92KB)

2019-07-09

setupppg_evkit_5.3.04238.0_win10

(ZIP, 28MB)

2020-05-08

maxrefdes220-prj

(ZIP, 5MB)

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