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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

• ECG common-mode rejection ratio (CMRR): 100 dB

• ECG input impedance > 2 GΩ, support dry electrode

• Input noise meet YY-0885/IEC60601-2-47

Light Transmitter Block

• Two 8-bit LED drivers: each supports 4 LEDs, total 8 LEDs

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

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

Light Receiver Block

• 4 independent AFEs that support synchronous sampling, 75% reduction in LED lighting time in multi-channel applications

• Up to 8 programmable sample time-slots, up to 32 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

• Right leg drive (RLD) single-lead ECG sensing circuit

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

• ECG

• PWTT

• SpO2

• HRV

• Wrist (Wearing) Detection