MAX86150的优势特性以及典型应用电路图

Maxim公司的MAX86150是集成了血管容积图，心电图，血氧传感器和心率监视传感器等生物传感器模块，包括了内部LED，光电探测器和带环境光抑制的低噪音电子学，容易设计在移动和可穿戴设备。工作电压1.8V，并有单独电压用于内部LED，工作温度-40℃到 +85℃，2哦用在智能手机，平板电脑，可穿戴设备以及健身辅助设备。本文介绍了MAX86150主要优势和特性，简化框图和功能框图，典型应用电路图以及评估板MAX86150 EVS主要特性，电路图，材料清单和PCB设计图。

The MAX86150 is an integrated electrocardiogram， pulse oximeter， heart rate monitor sensor module. It includes internal LEDs， photodetector， and low-noise electronics with ambient light rejection. The MAX86150 helps ease design-in to mobile and wearable devices.

The MAX86150 operates on a 1.8V supply voltage with a separate power supply for the internal LEDs. Communication to and from the module is entirely through a standard I2C-compatible interface. The module can be shut down through software with near zero standby current， allowing the power rails to remain powered at all times.

MAX86150主要优势和特性：

Electrocardiogram （ECG） Optimized for Dry Electrode Operation

Reflective Heart Rate Monitor and Medical-Grade Pulse Oximeter

Miniature 3.3mm x 5.6mm x 1.3mm 22-pin Optical Module Optical-Grade Glass for Long-Term Optimal and Robust Performance

Ultra-Low Power Operation for Mobile Devices Ultra-Low Shutdown Current （0.7μA Typical）

High SNR and Robust Ambient Light Cancellation

-40℃ to +85℃ Operating Temperature Range

MAX86150应用：

Smartphones

Tablets

Wearable Devices

Fitness Assistant Devices

图1.MAX86150简化框图

图2.MAX86150功能框图

图3.MAX86150典型应用电路图

评估板MAX86150 EVS

The MAX86150 Evaluation System （EV system） provides a proven platform to evaluate the MAX86150 integrated photoplethysmogram （PPG） and 1-lead electrocardiogram （ECG） sensor module. The EV system consists of two boards that connect through header pins： a MAX32630FTHR microcontroller board and a MAX86150 evaluation kit （EV kit）。 The MAX32630FTHR houses a microcontroller with preloaded firmware， Bluetooth communication， and power management. The sensor board contains the MAX86150 module and two stainless steel dry electrodes for ECG measurement. The EV kit is powered by the included lithium ion battery， which is charged with a micro-USB cable.

评估板MAX86150 EVS主要特性：

Real-Time Monitoring of PPG and 1-Lead ECG

Data-Logging Capability

Windows® 10 Compatible GUI Software

Integrated Dry Electrodes

Fully Assembled and Tested

评估板MAX86150 EVS包括：

MAX86150 EV kit

MAX32630FTHR

Pico programming adapter

2 x USB A to micro-USB cables

500mAh lithium polymer battery

图4.评估板MAX86150 EVS外形图

图5.评估板MAX86150 EVS电路图

评估板MAX86150 EVS材料清单：

图6.评估板MAX86150 EVS PCB设计图：顶层丝印

图7.评估板MAX86150 EVS PCB设计图：顶层

图8.评估板MAX86150 EVS PCB设计图：层2

图9.评估板MAX86150 EVS PCB设计图：层3

图10.评估板MAX86150 EVS PCB设计图：底层

图11.评估板MAX86150 EVS PCB设计图：底层丝印