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X95820 - Dual Digital Potentiometers

Description

DESCRIPTION Power supply pin Hardware write protection pin.

Active low.

Prevents any “Write” operation of the I2C interface.

Features

  • Two potentiometers in one package.
  • 256 resistor taps-0.4% resolution.
  • I2C serial interface - Three address pins, up to eight devices/bus.
  • Wiper resistance: 70 typical @ 3.3V.
  • Non-volatile storage of wiper position.
  • Standby current < 5µA max.
  • Power supply: 2.7V to 5.5V.
  • 50k, 10k total resistance.
  • High reliability - Endurance: 150,000 data changes per bit per register - Register data retention: 50 years @ T  75°C.

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Datasheet preview – X95820

Datasheet Details

Part number X95820
Manufacturer Renesas
File Size 1.32 MB
Description Dual Digital Potentiometers
Datasheet download datasheet X95820 Datasheet
Additional preview pages of the X95820 datasheet.

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Full PDF Text Transcription

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DATASHEET X95820 Dual Digital Controlled Potentiometers (XDCP™) Low Noise/Low Power/I2C Bus/256 Taps FN8212 Rev 2.00 July 18, 2006 The X95820 integrates two digitally controlled potentiometers (XDCP) 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.
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