CN / EN
GH3310
GH3310

GH3310 is an ultra-low-power, ultra-high-precision and multi-modal analog front end, capable of PPG, ECG, and EDA measurement. The flexible operating mode enable the AFE to accommodate various sensors measurements including temperature sensors. It is applicable to the smart devices like high-end smart watches, smart wristbands, multi-parameter monitor, and hand-held ECG monitor.

GH3310

Key Features

  • PPG signal chain

    • 4 independent PPG channels with simultaneous sampling to allow less LED on-time

    • Support 4 differential or 8 single-ended PD inputs multiplexing to PPG channels

    • 4 high-resolution 24-bit ADCs for simultaneous conversion

    • Ultra low dark current noise of <14 pArms

    • 4 LED drivers support up to 16 LEDs, 200 mA peak drive current for each driver

    • High system SNR of >110 dB to ensure accurate PPG monitoring

    • Up to 128 samples per cycle, over 80 dB ambient light rejection ratio

  • ECG signal chains

    • 1 channel DC mode ECG or AC mode ECG adapted to 1-lead ECG signal acquisition

    • DC mode RTI noise: 1.67 μVrms @ 1 * gain

    • AC mode RTI noise: 1.25 μVrms @ 20 * gain

    • Input impedance of 10 GΩ and DC input range of ±1300 mV for dry electrode application

  • EDA chains

    • Low current excitation source (EDA TX): DC to 62.5 Hz

    • Digital I/Q demodulation for complex (I, Q) impedance data extraction

    • Multiplexed DC mode or AC mode ECG channel

    • Support on-chip CORDIC

  • Build-in functions

    • Automatic LED dimming and AGC (automatic gain control)

    • Lead detection and Right leg driver for ECG

    • ECG Lead detection support external input buffer

    • Active shielding driver

    • Data compress for ECG

  • Support SPI and IIC communications

  • Package

    • WLCSP 49 balls, 0.35 mm pitch

    • 2.645 mm * 2.645 mm * 0.5 mm

  • Internal FIFO

    • Area 1: 16 k bytes (3200 samples)

    • Area 2: 80 k bytes (16 k samples)

  • Typical Applications

    • Consumer Electronics: Wearable devices

    • Medical Electronics: Multi Parameter Monitor, Hand-held ECG monitor

Read More

Product Details

Part Number

GH3310

PPG TX

LED interface

16

Max LED Driving Current

200 mA * 4

PPG RX

AFE channels

4

PD interface

8 Single/ 4 Diff

Max SNR

110 dB

ECG

ECG channels

1 (DC or AC)

Input Impedance

>10 GΩ

RTI noise

DC:1.67 µVrms
AC:1.25 µVrms

Power Consumption

DC:610 µA
AC:290 µA

Bio-Z

EDA Channels

1

EDA resolution

>90 dB

Temperature

NTC interface

4

Temperature measurement accuracy

±0.1 °C@25 °C ~ 45 °C

Interface

IIC/SPI

ADC

24-bit

FIFO

96 k bytes

Package Type

WLCSP-49

Chip Size(mm)

2.645 * 2.645 * 0.5

Algorithm

HR, SpO2, HRV, ECG, Wear Detect

Hardware Resources

GH33xx EVK

An evaluate kit based on GH3300/GH3310/GH3311/GH3030 which is designed for hardware verify and performance test.

Read More

Software & Tools

GH33xx EVK PC Tool

This tool can be used to evaluate the performance of GH33xx chip and generate the configuration of driver library.
Read More

GH33xx Algorithm Library

This algorithm library integrates the algorithm library of GH33xx, including the measurement algorithm of basic physiological indicators (such as heart rate, HRV, SpO2, ECG, and Bio-Z).
Read More

GH33xx Android APP Tool

This tool can be used for the data collection and performance test of Goodix Demo watch.
Read More
Your Voice Matters
Contact Sales

Scan to follow

Open WeChat, use "Scan" to follow.