See datasheet for actual packaging/pinout drawings

Package | PIN:

YZP | 15

Temp:

S (-20 to 70)

ECO Plan:

Green (RoHS & no Sb/Br)

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AFE4404YZPT-Ultra-Small Integrated AFE for Wearable, Optical Heart-Rate Monitoring and Biosensing

The AFE4404 is an analog front-end (AFE) for optical bio-sensing applications, such as heart-rate monitoring (HRM) and saturation of peripheral capillary oxygen (SpO2). The device supports three switching light-emitting diodes (LEDs) and a single photodiode. The current from the photodiode is converted into voltage by the transimpedance amplifier (TIA) and digitized using an analog-to-digital converter (ADC). The ADC code can be read out using an I2C interface. The AFE also has a fully-integrated LED driver with a 6-bit current control. The device has a high dynamic range transmit and receive circuitry that helps with the sensing of very small signal levels.

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