AD5253 Description
Data Sheet AD5253/AD5254 Quad 64-/256-Position I2C Nonvolatile Memory Digital Potentiometers .
The AD5253/AD52541 are quad-channel, I2C, nonvolatile memory, digitally controlled potentiometers with 64/256 positions, respectively.
AD5253 Features
* FUNCTIONAL BLOCK DIAGRAM
* 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 = 54
AD5253 Applications
* Mechanical potentiometer replacement
* Low resolution DAC replacement
* RGB LED backlight control
* White LED brightness adjustment
* RF base station power amp bias control
* Programmable gain and offset control
* Programmable attenuators
* Programmable voltage-to-c
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