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AD5252 Datasheet Dual 64-/256-position I2c Nonvolatile Memory Digital Potentiometers

Manufacturer: Analog Devices

Overview: Data Sheet AD5251/AD5252 Dual 64-/256-Position I2C Nonvolatile Memory Digital.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

The AD5251/AD52521 are dual-channel, I2C, nonvolatile memory, digitally controlled potentiometers with 64/256 positions, respectively.

These devices perform the same electronic adjustment functions as mechanical potentiometers, trimmers, and variable resistors.

The parts’ versatile programmability allows multiple modes of operation, including read/write access in the RDAC and EEMEM registers, increment/decrement of resistance, resistance changes in ±6 dB scales, wiper setting readback, and extra EEMEM for storing user-defined information, such as memory data for other ponents, lookup table, or system identification informatio

Key Features

  • AD5251: Dual 64-position resolution.
  • AD5252: Dual 256-position resolution.
  • AD5251: 50 kΩ.
  • AD5252: 1 kΩ, 10 kΩ, 50 kΩ, 100 kΩ.
  • Nonvolatile memory stores wiper setting w/write protection.
  • Power-on refreshed with EEMEM settings in 300 µs typ.
  • EEMEM rewrite time = 540 µs typ.
  • Resistance tolerance stored in nonvolatile memory.
  • 12 extra bytes in EEMEM for user-defined information.
  • I2C compatible serial interface.
  • Direct read/write access of RDAC.

AD5252 Distributor