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DATASHEET
X9251
Single Supply/Low Power/256-Tap/SPI Bus, Quad Digitally-Controlled (XDCP™) Potentiometer
FN8166 Rev 7.00 January 14, 2021
The X9251 integrates four digitally controlled potentiometers (XDCP) on a monolithic CMOS integrated circuit.
The digitally controlled potentiometers are implemented with a combination of resistor elements and CMOS switches. The position of the wipers are controlled by the user through the SPI bus interface. Each potentiometer has associated with it a volatile Wiper Counter Register (WCR) and four nonvolatile Data Registers that can be directly written to and read by the user. The content of the WCR controls the position of the wiper.
X9251 Datasheet
