AFE4490RHAT Part Information

Details for AFE4490RHAT by Texas Instruments

Semiconductors - ICs > Special Function >

Part Description

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 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 device, 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. The device is a complete AFE solution packaged in a single, compact VQFN-40 package (6 mm × 6 mm) and is specified over the operating temperature range of –40°C to 85°C.

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Part Specifications

IC Function Analogue Front End Device
Supply Voltage Min 3V
Supply Voltage Max 5.25V
IC Package Type VQFN
No. of Pins 40Pins
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 3 - 168 hours
SVHC No SVHC (27-Jun-2018)
RoHS Compliant

Alternative Part Descriptions

  • ANALOGUE FRONT END, PULSE OXIMETER, VQFN; IC Function:Analogue Front End Device; Supply Voltage Min:3V; Supply Voltage Max:5.25V; IC Package Type:VQFN; No. of Pins:40Pins; Operating Temperature Min:-40°C; Operating Temperature RoHS Compliant: Yes | Newark Electronics
  • Integrated Analog Front End (AFE) for Pulse Oximeters | Texas Instruments

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