AFE4403YZPT - 

Special Function IC, Analogue Front End Device, Heart Rate Monitor, 2 V to 3.6 V, DSBGA-36


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Product Information

Analogue Front End Device
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MSL 1 - Unlimited
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Product Overview

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. The device is a very configurable timing controller. This flexibility enables the user to have complete control of the device timing characteristics. To ease clocking requirements and provide a low-jitter clock to the AFE4403, an oscillator is also integrated that functions from an external crystal. The device communicates to an external microcontroller or host processor using an SPI interface.
  • Fully-Integrated AFE for Pulse Oximeter and Heart Rate Monitoring Applications
  • Integrated Dual LED Driver
  • Option for a Third LED Support for Optimized SPO2, HRM, or Multi-Wavelength HRM
  • Up to 110-dB Dynamic Range
  • 22-Bit Output in Twos Complement Format Receive Channel
  • Rx = 2.0 V to 3.6 V
  • Tx = 3.0 V to 5.25 V
  • Sampling Rate: 1.3kSPS
  • Serial Input Channel
  • Operating temperature range -20°C to 70°C

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