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HX3605 is an ultra-low power, high performance optical sensor with I2C interface for Wearable, Heart-Rate Monitor and Bio-sensor. HX3605 integrates a transmitter and a receiver. The receiver has an on-chip photodiode, an offset IDAC and a high-resolution ADC. The transmitter has three LED driver ports sharing a 6bit current driver. Both transmitting and receiving path have very high dynamic range, which is desirable to process small PPG signals.

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1.Ultra-low power, high performance optical sensor with integrated on-chip photodiode for Wearable, Heart-Rate Monitor and Bio-sensor.

2.Dynamic range:up to 100dB.

3.Ultra-low power :HRM mode:47uA@FS=25Hz(with LED) 

                              SPO2 mode:242uA@FS=25Hz(with LED)

                              Wearing detection mode:小于10uA@FS=1Hz(with LED)            

4.Transmitter:Support 3 LEDS drives ,6-bit programmable LED current up to 200mA with programmable LED on time.

5.Receiver:19Bits high-precision  ADC,±32uA,10bits programmable  DC offset subtraction (Each phase can be adjusted independently).

6.High precision infrared wear detection :Support flexible and configurable hardware threshold interrupt output.

7.FIFO: Depth 32,24 bits width.

1.Voltage: VLED=3.3V~4.6V     VDD= 2.7V~3.6V

2.Communication interface: IIC

3.Temperature range:-30℃~80℃

4.Superiority: IntegrationPD,24hContinuous HRM,SPO2,HRV

5.Compact Size: OLGA-12   2.65*2.0*0.7mm