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AD5122A Datasheet Nonvolatile Digital Potentiometer

Manufacturer: Analog Devices

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General Description

The AD5122A/AD5142A potentiometers provide a nonvolatile solution for 128-/256-position adjustment applications, offering guaranteed low resistor tolerance errors of ±8% and up to ±6 mA current density in the Ax, Bx, and Wx pins.

The low resistor tolerance and low nominal temperature coefficient simplify open-loop applications as well as applications requiring tolerance matching.

The linear gain setting mode allows independent programming of the resistance between the digital potentiometer terminals, through RAW and RWB the string resistors, allowing very accurate resistor matching.

Overview

Data Sheet AD5122A/AD5142A Dual Channel, 128-/256-Position, I2C, Nonvolatile Digital.

Key Features

  • 10 kΩ and 100 kΩ resistance options.
  • Resistor tolerance: 8% maximum.
  • Wiper current: ±6 mA.
  • Low temperature coefficient: 35 ppm/°C.
  • Wide bandwidth: 3 MHz.
  • Fast start-up time < 75 µs.
  • Linear gain setting mode.
  • Single- and dual-supply operation.
  • Independent logic supply: 1.8 V to 5.5 V.
  • Wide operating temperature:.
  • 40°C to +125°C.
  • 3 mm × 3 mm package option.
  • Qualified for automotive.

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