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AD5251 - Dual 64-/256-Position I2C Nonvolatile Memory Digital Potentiometers

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.

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.

📥 Download Datasheet

Datasheet Details

Part number AD5251
Manufacturer Analog Devices
File Size 1.96 MB
Description Dual 64-/256-Position I2C Nonvolatile Memory Digital Potentiometers
Datasheet download datasheet AD5251 Datasheet

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Other Datasheets by Analog Devices

Part Number Description
AD5252 Dual 64-/256-Position I2C Nonvolatile Memory Digital Potentiometers
AD5253 Quad 64-/256-Position I2C Nonvolatile Memory Digital Potentiometers
AD5254 Quad 64-/256-Position I2C Nonvolatile Memory Digital Potentiometers
AD5255 3-Channel Digital Potentiometer with Nonvolatile Memory
AD5258 64-Position Digital Potentiometer

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
Data Sheet AD5251/AD5252 Dual 64-/256-Position I2C Nonvolatile Memory Digital Potentiometers 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 and EEMEM registers ► Predefined linear increment/decrement commands ► Predefined ±6 dB step change commands ► Synchronous or asynchronous dual-channel update ► Wiper setting readback ► 4 MHz bandwidth—1 kΩ version ► Single supply 2.