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AD5254 Key Features

  • AD5253: quad 64-position resolution
  • AD5254: quad 256-position resolution
  • 1 kΩ, 10 kΩ, 50 kΩ, 100 kΩ
  • Nonvolatile memory stores wiper settings with write protection
  • Power-on refreshed to 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-patible serial interface
  • Direct read/write access of RDAC and EEMEM registers

AD5254 Description

The AD5253/AD52541 are quad-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...