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CAT5261 - Dual Digital Potentiometer

Description

8 bytes of NVRAM memory.

Each digital POT consists of a series of resistive elements connected between two externally accessible end points.

Features

  • Two Linear-taper Digital Potentiometers.
  • 256 Resistor Taps per Potentiometer.
  • End to End Resistance 50 kW or 100 kW.
  • Potentiometer Control and Memory Access via SPI Interface.
  • Low Wiper Resistance, Typically 100 W.
  • Nonvolatile Memory Storage for up to Four Wiper Settings for Each Potentiometer.
  • Automatic Recall of Saved Wiper Settings at Power Up.
  • 2.5 to 6.0 Volt Operation.
  • Standby Current less than 1 mA.

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Datasheet Details

Part number CAT5261
Manufacturer onsemi
File Size 184.06 KB
Description Dual Digital Potentiometer
Datasheet download datasheet CAT5261 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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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.
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