Stock Code: 603160

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心率传感器

GH3220 Health Sensor

Overview

GH3220 is a health sensor that integrates single-lead ECG and multichannel PPG sensing circuits, capable of monitoring the health indicators such as Heart Rate (HR), Heart Rate Variability (HRV), Peripheral Capillary Oxygen Saturation (SpO2) and Pulse Wave Translation Time (PWTT). It features ultra-low power consumption and extremely high precision, and is applicable to the smart devices such as high-end smart watches and wristbands.

Features

  • Ultra-Low Power Consumption

    1. 100 µA @ 4 channels, 100 Hz, 1st-order Background Light Rejection (BGR)

  • Ultra-High Performance

    1. 24-bit highly accurate ADC
    2. PPG dynamic range: up to 110 dB
    3. Up to 256 µA Configurable Background Light Cancellation (BGC)
    4. AC Background Light Rejection (BGR) (50 Hz): 60 dB
    5. DC Background Light Rejection (BGR): 80 dB
    6. ECG Common-Mode Rejection Ratio (CMRR): 100 dB
    7. ECG Input Impedance > 2 GΩ, input noise 9 µVpp

  • Light Transmitter Block

    1. 8 LED pins
    2. Two 8-bit LED drivers: each supports 4 LEDs
    3. Each driver provides a maximum drive current of 200 mA
    4. Up to 8 programmable Lighting time-slots

  • Light Receiver Block

    1. Four independent AFEs that support synchronous sampling
    2. Up to 8 programmable sample time-slots, up to 32 effective channels for data acquisition
    3. Maximum junction capacitance of PD: 400 pF

  • Build-In Functions

    1. Automatic Dimming
    2. Automatic Wrist Detection
    3. Right Leg Drive (RLD) Single-Lead ECG Sensing Circuit

  • FIFO: 800 samples

  • Communication Interface

    1. Up to 12 MHz SPI
    2. Up to 1 MHz IIC

  • Package

    1. WLCSP package
    2. Size: 2.605 mm × 2.905 mm × 0.468 mm

  • Typical Applications

    1. Heart Rate
    2. ECG
    3. PWTT
    4. SpO2
    5. HRV
    6. Wrist Detection

System Block Diagram

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