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ISL22326 - Dual Digitally Controlled Potentiometers

General Description

2.

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Key Features

  • Two potentiometers in one package.
  • 128 resistor taps.
  • I2C serial interface.
  • Three address pins, up to eight devices/bus.
  • Non-volatile storage of wiper position.
  • Wiper resistance: 70Ω typical at VCC = 3.3V.
  • Shutdown mode.
  • Shutdown current 5µA max.
  • Power supply: 2.7V to 5.5V.
  • 50kΩor 10kΩ total resistance.
  • High reliability.
  • Endurance: 1,000,000 data changes per bit per register.
  • Register data retention: 50 years at T < +.

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Datasheet Details

Part number ISL22326
Manufacturer Renesas
File Size 908.26 KB
Description Dual Digitally Controlled Potentiometers
Datasheet download datasheet ISL22326 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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Datasheet ISL22326 Dual Digitally Controlled Potentiometers (XDCP™) Low Noise, Low Power, I2C Bus, 128 Taps The ISL22326 integrates two digitally controlled potentiometers (XDCP) 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 I2C bus 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. At power-up the device recalls the contents of the two DCP’s IVR to the corresponding WRs.