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AFE4403 - Ultra-Small Integrated Analog Front-End

Description

The AFE4403 is a fully-integrated analog front-end (AFE) ideally suited for pulse oximeter applications.

The device consists of a low-noise receiver channel with an integrated analog-to-digital converter (ADC), an LED transmit section, and diagnostics for sensor and LED fault detection.

Features

  • 1 Fully-Integrated AFE for Pulse Oximeter and Heart Rate Monitoring.

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Datasheet preview – AFE4403

Datasheet Details

Part number AFE4403
Manufacturer Texas Instruments
File Size 2.04 MB
Description Ultra-Small Integrated Analog Front-End
Datasheet download datasheet AFE4403 Datasheet
Additional preview pages of the AFE4403 datasheet.

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Full PDF Text Transcription

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Product Folder Sample & Buy Technical Documents Tools & Software Support & Community AFE4403 SBAS650B – MAY 2014 – REVISED JULY 2014 AFE4403 Ultra-Small, Integrated Analog Front-End for Heart Rate Monitors and Low-Cost Pulse Oximeters 1 Features •1 Fully-Integrated AFE for Pulse Oximeter and Heart Rate Monitoring Applications: • Transmit: – Integrated Dual LED Driver (H-Bridge or Common Anode) – Option for a Third LED Support for Optimized SPO2, HRM, or Multi-Wavelength HRM – Up to 110-dB Dynamic Range – LED Current: – Programmable to 100 mA with 8-Bit Current Resolution – 30 µA + Average LED Current – Programmable LED On-Time – Independent LED2 and LED1 Current Reference • Receive Channel with High Dynamic Range: – 22-Bit Output in Twos Complement Format – Up to 105-dB Dynamic Range
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