Features: ` Four linear taper digitally programmable potentiometers` 256 resistor taps per potentiometer` End to end resistance 50k or 100k` Potentiometer control and memory access via 2-wire interface (I2C like)` Low wiper resistance, typically 100` Nonvolatile memory storage for up to four wiper...
CAT5259: Features: ` Four linear taper digitally programmable potentiometers` 256 resistor taps per potentiometer` End to end resistance 50k or 100k` Potentiometer control and memory access via 2-wire interf...
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Digital Potentiometer ICs DPP,MiniPot 32 taps Up/Down
The CAT5259 is four digitally programmable potentiometers (DPPs™) integrated with control logic and 16 bytes of NVRAM memory. Each DPP 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. CAT5259 separate 8-bit control register (WCR) independently controls the wiper tap switches for each DPP. 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 2-wire serial bus. On power-up, the contents of the first data register (DR0) for each of the four potentiometers is automatically loaded into its respective wiper control registers.
The CAT5259 can be used as a potentiometer or as a two terminal, variable resistor. It is intended for circuit level or system level adjustments in a wide variety of applications. It is available in the 0°C to 70°C commercial and -40°C to 85°C industrial operating temperature ranges and offered in a 24-lead SOIC and TSSOP package.