MikroElektronika , 用于卡路里支出、心率监测、类似的健康相关应用

Supports Common Anode LED Configuration

Dynamic Range: 100 dB

6-Bit Programmable LED Current to 50 mA (Extendable to 100 mA)

Programmable LED On-Time

Simultaneous Support of 3 LEDs for Optimized SpO2, HRM, or Multi-Wavelength HRM

Receiver:

24-Bit Representation of the Current Input from a Photodiode in Twos Complement Format

Individual DC Offset Subtraction DAC at TIA Input for Each LED and Ambient Phase

Digital Ambient Subtraction at ADC Output

Programmable Transimpedance Gain:10 kΩ to 2 MΩ

Dynamic Range: 100 dB

Average Current Less Than 200 μA for PPG Signal Acquisition

Pulse Frequency: 10 SPS to 1000 SPS

Flexible Pulse Sequencing and Timing Control

Flexible Clock Options:

External Clocking:4-MHz to 60-MHz Input Clock

Internal Clocking: 4-MHz Oscillator

I2C Interface

Operating Temperature Range: –20°C to 70°C

2.6-mm x 1.6-mm DSBGA Package, 0.5-mm Pitch

Supplies: Rx: 2 V to 3.6 V, Tx: 3 V to 5.25 V,IO: 1.8 V to 3.6 V