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X9268 - Dual Digitally Potentiometer

General Description

The X9268 integrates 2 digitally controlled potentiometer (XDCP) on a monolithic CMOS integrated circuit.

The digital controlled potentiometer is implemented using 255 resistive elements in a series array.

Between each element are tap points connected to the wiper terminal through switches.

Key Features

  • Dual.
  • Two Separate Potentiometers.
  • 256 Resistor Taps/Pot.
  • 0.4% Resolution.
  • 2-Wire Serial Interface for Write, Read, and Transfer Operations of the Potentiometer.
  • Wiper Resistance, 100 typical @ V+ = 5V, V- = -5V.
  • 16 Nonvolatile Data Registers for Each Potentiometer.
  • Nonvolatile Storage of Multiple Wiper Positions.
  • Power-on Recall. Loads Saved Wiper Position on Power-up.
  • Standby Current.

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Datasheet Details

Part number X9268
Manufacturer Renesas
File Size 845.09 KB
Description Dual Digitally Potentiometer
Datasheet download datasheet X9268 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 X9268 Dual Supply/Low Power/256-Tap/2-Wire Bus Dual Digitally-Controlled (XDCP™) Potentiometers FN8172 Rev.4.00 August 29, 2006 FEATURES • Dual–Two Separate Potentiometers • 256 Resistor Taps/Pot–0.4% Resolution • 2-Wire Serial Interface for Write, Read, and Transfer Operations of the Potentiometer • Wiper Resistance, 100 typical @ V+ = 5V, V- = -5V • 16 Nonvolatile Data Registers for Each Potentiometer • Nonvolatile Storage of Multiple Wiper Positions • Power-on Recall. Loads Saved Wiper Position on Power-up. • Standby Current <5µA Max • VCC: ±2.7V to ±5.5V Operation • 50k, 100k Versions of End to End Pot Resistance • Endurance: 100,000 Data Changes per Bit per Register • 100 yr. Data Retention • 24 Ld SOIC • Low Power CMOS • Power Supply VCC = ±2.7V to ±5.5V V+ = 2.