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Texas Instruments AFE53004W Smart Analog Front Ends (AFEs)

Texas Instruments AFE53004W Smart Analog Front Ends (AFEs) are a family of 4-channel, ultra-low power smart AFE devices available in a 16-pin DSBGA package. These devices feature 10-bit ADC input, 50MHz SPI-compatible interface, and 1.8V to 5.5V supply voltage range. The AFE53004W AFEs support General-Purpose Input/Output (GPIO) that is configurable for multiple functions and user-programmable Non-Volatile Memory (NVM). These devices automatically detect I2C, PMBus, and SPI, and contain an internal reference. The AFE53004W AFEs are ideal for optical modules and standard notebook PCs.

Features

  • Programmable voltage or current outputs with flexible configuration:
    • Voltage outputs:
      • 1LSB DNL
      • Gains of 1x, 1.5x, 2x, 3x, and 4x
    • Current outputs:
      • 1LSB INL and DNL (8-bit)
      • Unipolar and bipolar output range options from 25μA to 250μA
  • 2LSB INL, 1LSB DNL 10-bit ADC input
  • Programmable comparator mode for all channels
  • High-impedance output when VDD is off
  • High-impedance or resistive pull-down power-down modes
  • 50MHz SPI-compatible interface
  • 1.62V VIH with VDD = 5.5V automatically detects I2C, SPI, or PMBus® interface
  • General-Purpose Input/Output (GPIO) configurable to multiple functions
  • Sine wave, triangular, and sawtooth predefined waveform generation
  • User-programmable Non-Volatile Memory (NVM)
  • Internal, external, or power supply as reference
  • Wide operating range:
    • 1.8V to 5.5V power supply
    • -40°C to 125°C operating temperature range
  • 16-pin DSBGA (1.76mm x 1.76mm) tiny package

Applications

  • Optical modules
  • Standard notebook PCs

Functional Diagram

Block Diagram - Texas Instruments AFE53004W Smart Analog Front Ends (AFEs)
Published: 2026-01-13 | Updated: 2026-02-03