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Single Supply/Low Power/256-T ap/SPI Bus, Quad Digitally-Controlled ( XDCP™) Potentiometer
The X9251 integrates four digitally controlled p otentiometers (XDCP) on a monolithic CM OS integrated circuit.
The digitally co ntrolled potentiometers are implemented with a combination of resistor element s and CMOS switches. The position of th e wipers are controlled by the