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首页产品索引AD5246

AD5246

购买收藏
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.

应用案例更多案例

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