GH300 is a compact, ultra-low-power heart rate sensor that integrates two LEDs, a photodiode (PD), and an analog front-end. It works for devices with strict requirements on size and power consumption, such as smart earphones and smart rings.
Designed for smart earphone applications, GH300 is capable of in-ear detection (IED) and supports an external photodiode (PD) and LED module to achieve precise heart rate sensing.
Ultra-Compact Size
LGA Package Size: 4.3 mm * 2.6 mm * 0.9 mm
Two LEDs, one PD and one AFE embedded
Ultra-Low Power Consumption
Average current consumption in heart rate detection mode: 40 µA
Average current consumption in in-ear detection mode: 10 µA
Excellent Performance
24 Bits highly accurate ADC
Dynamic range: 96 dB
Light Transmitter Module
Two Internal LEDs and one External LED
Three independent LED drivers
8-bit programmable current controller
Automatic dimming, self-adaptive to environment changes in optical path for optimal SNR output
Light Receiver Module
One Internal photodiode (PD) and one External photodiode (PD)
Two receiving channels
Up to 1 kHz heart rate sampling frequency for each channel
Operating Voltage: 2.1 V ~ 3.3 V
Communication Interface: IIC
Functions: HR, HRV, In-Ear Detection (IED)
Applications: smart headphones, smart rings, smart wristbands, etc.
Category | GH300 | |
|---|---|---|
PPG TX | Internal LEDs | 2 |
External LED interface | 1 | |
Max LED current | 100 mA | |
PPG RX | AFE channel | 1 |
| Internal PDs | 1 |
| External PD input | 1 |
| Max SNR | 96 dB |
| HR supply current(µA) | 40 |
Interface | I2C / SPI | |
FIFO | 256 samples | |
ADC | 24 bit | |
Size(mm) | 2.6 * 4.3 * 0.9 | |
Package | LGA 16 | |
Typical application | Smart headphones, Smart rings, Smart wristbands | |
Algorithm | HR, HRV, Wear Detect | |
| Name | Rights Description | Version | Date |
|---|---|---|---|
| GH300 Datasheet | Secure File, Please Contact Sales | V1.4 | 2022-07-16 |
| Manufacturing Guide for GH300 Mass Production Test Jigs Rev.1.1.pptx | Secure File, Please Contact Sales | V1.1 | 2022-07-16 |
| GH300_BOM | Secure File, Please Contact Sales | V1.2 | 2022-07-16 |
| GH300_Schematic | Secure File, Please Contact Sales | V1.5 | 2022-07-16 |
| GH300_GR_All Asm_V1.0 | Secure File, Please Contact Sales | V1.0 | 2022-07-16 |
| GH300_GR_Stacking Asm_V1.0 | Secure File, Please Contact Sales | V1.0 | 2022-07-16 |
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