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X9C303 - Logarithmic Digitally Controlled Potentiometer

Datasheet Summary

Description

The Intersil X9C303 is a digitally controlled potentiometer (XDCP).

The device consists of a resistor array, wiper switches, a control section, and nonvolatile memory.

The wiper position is controlled by a three-wire interface.

Features

  • Solid-state potentiometer.
  • Three-wire serial interface.
  • 100 wiper tap points - Wiper position stored in nonvolatile memory and recalled on power-up.
  • 99 resistive elements, log taper - Temperature compensated - End to end resistance, 32kΩ ±15% - Terminal voltages, ±5V.
  • Low power CMOS - VCC = 5V - Active current, 3mA max. - Standby current, 750µA max.
  • High reliability - Endurance, 100,000 data changes per bit - Register data retention, 100 ye.

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Datasheet Details

Part number X9C303
Manufacturer Intersil Corporation
File Size 278.76 KB
Description Logarithmic Digitally Controlled Potentiometer
Datasheet download datasheet X9C303 Datasheet
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Full PDF Text Transcription

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® X9C303 Logarithmic Digitally Controlled Potentiometer (XDCP™) Data Sheet January 24, 2007 FN8223.1 Terminal Voltage ±5V, 100 Taps, Log Taper Description The Intersil X9C303 is a digitally controlled potentiometer (XDCP). The device consists of a resistor array, wiper switches, a control section, and nonvolatile memory. The wiper position is controlled by a three-wire interface. The resistor array is composed of 99 resistive elements. Between each element and at either end are tap points accessible to the wiper terminal. The position of the wiper element is controlled by the CS, U/D, and INC inputs. The position of the wiper can be stored in nonvolatile memory and then be recalled upon a subsequent power-up operation.
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