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    首页产品索引AD5246

    AD5246

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    128 Position I2C Compatible Programmable Resistor in SC70 Package

    制造商:ADI/AD

    中文数据手册

    产品信息

    优势和特点

      128 Position

      End-to-End Resistance 5kΩ, 10kΩ , 50kΩ , 100kΩ

      Ultra-Compact SC70-6 (2 mm x 2.1 mm) Package

      I2C Compatible Interface

      Full Read/Write of Wiper Register

      Power-on Preset to Midscale

      Single Supply +2.7 V to +5.5 V

      Low Temperature Coefficient 45 ppm/°C

      Low Power, IDD=3 µA typical

      Wide Operating Temperature –40°C to +125°C

      Evaluation Board Available

      Available in lead-free (Pb-free) package

    产品详情

    The AD5246 provides a compact 2 mm × 2.1 mm packaged solution for 128-position adjustment applications. This device performs the same electronic adjustment function as a variable resistor. Available in four different end-to-end resistance values (5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ), these low temperature coefficient devices are ideal for high accuracy and stability variable resistance adjustments.

    The wiper settings are controllable through the I2C compatible digital interface, which can also be used to read back the present wiper register control word. The resistance between the wiper and either end point of the fixed resistor varies linearly with respect to the digital code transferred into the RDAC1 latch.

    Operating from a 2.7 V to 5.5 V power supply and consuming 3 μA allows for usage in portable battery-operated applications.

    APPLICATIONS

      Mechanical potentiometer replacement in new designs

      Transducer adjustment of pressure, temperature, position,chemical, and optical sensors

      RF amplifier biasing

      Automotive electronics adjustment

      Gain control and offset adjustment

    1The terms digital potentiometer, VR, and RDAC are used interchangeably in this document.

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