AD5259

Nonvolatile, I2C Compatible 256-Position, Digital Potentiometer

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Product Details

The AD5259 provides a compact, nonvolatile LFCSP-10 (3 mm x 3 mm) or MSOP-10 (3 mm x 4.9 mm) packaged solution for 256-position adjustment applications. These devices perform the same electronic adjustment function as mechanical potentiometers1 or variable resistors, but with enhanced resolution and solid-state reliability.

The wiper settings are controllable through an I2C-compatible digital interface that is also used to read back the wiper register and EEPROM content. Resistor tolerance is also stored within EEPROM, providing an end-to-end tolerance accuracy of 0.1%.

A separate VLOGIC pin delivers increased interface flexibility. For users who need multiple parts on one bus, Address Bit AD0 and Address Bit AD1 allow up to four devices on the same bus

Applications

  • LCD panel VCOM adjustment
  • LCD panel brightness and contrast control
  • Mechanical potentiometer replacement in new designs
  • Programmable power supplies
  • RF amplifier biasing
  • Automotive electronics adjustment
  • Gain control and offset adjustment
  • Fiber to the home systems
  • Electronics level settings
  • Product Lifecycle

    checked Production

    At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

    Alternative Parts

    Evaluation Kits

    (1)

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    EVAL-AD5259

    EVAL-AD5259 Circuit Diagram

    Product Details

    The AD5259 supports single-supply 2.7 V to 5.5 V operation, making the device suited for battery-powered applications and many other applications with superior low temperature coefficient performance.

    In addition, the AD5259 uses a versatile I2C serial interface that operates in fast mode, allowing speeds of up to 400 kHz. This interface can be used to read back the wiper register and EEPROM content.

    The EVAL-MB-LV-SDZ can operate in single-supply mode and incorporates an internal power supply from the USB.

    Complete specifications for the AD5259 part can be found in the AD5259 data sheet.

    Software & Systems Requirements

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    ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

    AD5259 Material Declaration
    PCN-PDN Information Quality And Reliability Symbols and Footprints

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    The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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    Evaluation Boards Pricing displayed is based on 1-piece.
    Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.