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ISL22449
OBSOLETE PRODUCT POSSIBLE SUBSTITUTE PRODUCT
ISL22446
Quad Digitally Controlled Potentiometer (XDCP™) Low Noise, Low Power, SPI® Bus, 128 Taps, Wiper Only
DATASHEET
FN6333 Rev 3.00 July 17, 2009
The ISL22449 integrates four digitally controlled potentiometers (DCP) and non-volatile memory 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 serial interface. Each potentiometer has an associated volatile Wiper Register (WR) and a non-volatile Initial Value Register (IVR) that can be directly written to and read by the user. The contents of the WR controls the position of the wiper.
ISL22449 Datasheet
