AFE4404 Datasheet - Texas Instruments

AFE4404 Ultra-Small Integrated AFE

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 conver.

AFE4404 Features

* 1 Transmitter:

* 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

AFE4404-etcTI.pdf