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Dual Digital Potentiometer (POT) with 256 Taps and SPI Interface
CAT5261
Description The CAT5261 is two digital POTs integrated with control logic and
8 bytes of NVRAM memory. Each digital POT consists of a series of resistive elements connected between two externally accessible end points. The tap points between each resistive element are connected to the wiper outputs with CMOS switches. A separate 8-bit control register (WCR) independently controls the wiper tap switches for each digital POT. Associated with each wiper control register are four 8-bit non-volatile memory data registers (DR) used for storing up to four wiper settings. Writing to the wiper control register or any of the non-volatile data registers is via a SPI serial bus.
CAT5261 Datasheet
