AFE4490 Datasheet - Texas Instruments

AFE4490 Integrated Analog Front-End

The AFE4490 is a fully-integrated analog front-end (AFE) that is ideally suited for pulse-oximeter applications. The device consists of a low-noise receiver channel with a 22-bit analog-to-digital converter (ADC), an LED transmit section, and diagnostics for sensor and LED fault detection. The devic.

AFE4490 Features

* 1 Fully-Integrated Analog Front-End for Pulse Oximeter Applications:

* Flexible Pulse Sequencing and Timing Control

* Transmit:

* Integrated LED Driver (H-Bridge, Push, or Pull)

* 110-dB Dynamic Range Across Full Range (Enables Low Noise at Low LED Current)

AFE4490-etcTI.pdf