Ultra-Low Power Consumption

• Average current consumption in heart rate detection mode: 59 µA

• Average current consumption in SpO2 detection mode: 230 µA

Ultra-high Performance

• 24-bit highly accurate ADC

• PPG dynamic range: up to 110 dB

• Up to 256 µA configurable background light cancellation (BGC)

• AC background light rejection (BGR) (50 Hz): 60 dB

• DC background light rejection (BGR): 80 dB

Light Transmitter Block

• Two LED drivers embedded; each supports 4 LEDs, total 8 LEDs

• Each LED driver with 8-bit resolution and a maximum drive current of 200mA

• Support 8 LEDs concurrently for SpO2 or multi-wavelength and multi-position heart rate detection

Light Receiver Block

• 2 independent AFEs that support synchronous sampling, 50% reduction in LED lighting time in multi-channel applications

• Up to 8 programmable sample time-slots, up to 16 effective channels for data acquisition

• 4 PD interfaces for diff mode, and 8 PD interfaces for single-end mode

Build-in Functions

• Automatic dimming

• Automatic wrist (wearing) detection

Internal FIFO

• 800 * 4 bytes, caching 800 samples

Communication Interface

• SPI: up to 12 MHz

• IIC: up to 1 MHz

Package

• WLCSP Package

• Size: 2.605 mm * 2.905 mm * 0.468 mm, 0.4 mm pitch, 42 balls

Typical Applications

• Heart Rate

• SpO2

• HRV

• Wrist (Wearing) Detection