Overview

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.

ISL90727_ISL90728 Functional Diagram
ISL90727_ISL90728 Functional Diagram
  • 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

Design & Development

Software Downloads
Type Title Date
Library
DCP Evaluation Board Software v6.03
EXE 2.56 MB
1 item
EU153-SMTLEAKPOCZ Smart Water Sensor Solution Kit Board

EU153-SMTLEAKPOCZ

Development
Learn More

Smart Water Sensor Solution Kit

The EU153-SMTLEAKPOCZ water leakage sensor solution kit demonstrates the detection of inappropriately high moisture levels or water spilling to allow quick evaluation...

Featured Documents:
EU153-SMTLEAKPOCZ Smart Water Leakage Sensor Hardware User's Guide
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ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

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Diagram of ECAD Models

Product Options

    Processing table
    Pkg. Type
    Carrier Type
    Moisture Sensitivity Level (MSL)
    Price (USD) | 1ku
    Buy / Sample
    Part Number
    ISL90727UIE627Z-TK
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    Samples Available
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    		SC70 Reel 1 0.841 Get Samples,
    ISL90727WIE627Z
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    		SC70
    ISL90727WIE627Z-TK
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    Samples Available
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    		SC70 Reel 1 Get Samples,
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