Analog Products

Overview

Description

The Intersil ISL90727 and ISL90728 are digitally controlled potentiometers (XDCP™). Each device consists of a resistor array, wiper switches, and a control section. The wiper position is controlled by an I2C Bus™. The potentiometer is implemented by a resistor array composed of 127 resistive elements and a wiper switching network. 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 SDA and SCL inputs.

Features

  • Volatile Solid-State Potentiometer
  • I2C Serial Bus Interface
  • DCP Terminal Voltage, 2.7V to 5.5V
  • Low Tempco
  • Rheostat - 45 ppm/°C Typical
  • Divider - 15 ppm/°C Typical
  • 128 Wiper Tap Points
  • Wiper Resistance 70Ω Typ at VCC = 3.3V
  • Low Power CMOS
  • Active Current, 200µA Max
  • Standby Current, 500nA Max
  • Available RTOTAL Values = 50kΩ, 10kΩ
  • Power-on Preset to Midscale
  • Packaging
  • 6 Ld SC-70
  • Pb-Free (RoHS Compliant)

Applications

  • Mechanical Potentiometer Replacement
  • Transducer Adjustment of Pressure, Temperature,
  • Position, Chemical, and Optical Sensors
  • RF Amplifier Biasing
  • LCD Brightness and Contrast Adjustment
  • Gain Control and Offset Adjustment

Documentation

Title Type Date
PDF505 KB
Datasheet
PDF281 KB
Application Note
PDF513 KB
Application Note
PDF251 KB
Application Note
PDF503 KB
Application Note
PDF287 KB
Application Note
PDF179 KB
End Of Life Notice
PDF1.40 MB
Manual - Development Tools
PDF315 KB
Other
PDF208 KB
Price Increase Notice
PDF363 KB
Product Advisory
PDF201 KB
Product Change Notice

Design & Development

Software & Tools

Software Downloads

Title Type Date
PDF179 KB
End Of Life Notice
EXE2.56 MB
Library

Models

Support