The AFE4400 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.
Key Features
1 Fully-Integrated Analog Front-End for Pulse Oximeter.
Full PDF Text Transcription for AFE4400 (Reference)
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AFE4400. For precise diagrams, and layout, please refer to the original PDF.
Product Folder Sample & Buy Technical Documents Tools & Software Support & Community AFE4400 SBAS601H – DECEMBER 2012 – REVISED JULY 2014 AFE4400 Integrated Analog Front-...
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H – DECEMBER 2012 – REVISED JULY 2014 AFE4400 Integrated Analog Front-End for Heart Rate Monitors and Low-Cost Pulse Oximeters 1 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) – Dynamic Range: 95 dB – LED Current: – Programmable to 50 mA with 8-Bit Current Resolution – Low Power: – 100 µA + Average LED Current – Programmable LED On-Time – Independent LED2 and LED1 Current Reference • Receive Channel with High Dynamic Range: – 13 Noise-Free Bits – Low Power: < 670 µA at 3.
AFE4400 Datasheet
