Features and Benefits

  • Dual 256-Position Linear Digital Resistors
  • Available as 50kΩ/30kΩ or 50kΩ/15kΩ
  • Resistor Settings Stored in NV Memory
  • Low Temperature Coefficient
  • I²C-Compatible Serial Interface
  • Wide Operating Voltage (2.4V to 5.5V)
  • Software Write Protection
  • User-EEPROM Memory
  • Programmable Slave Address
  • Operating Temperature Range: -40°C to +95°C
  • Small 8-Pin µSOP Package

Product Details

The DS3902 features a dual, nonvolatile (NV), low temperature-coefficient, variable digital resistor with 256 user-selectable positions. The DS3902 can operate over a wide supply range of 2.4V to 5.5V, and communication with the device is achieved through an I²C compatible serial interface. Internal address settings allow the DS3902 slave address to be programmed to one of 128 possible addresses. The low cost and the small size of the DS3902 make it an ideal replacement for conventional mechanical-trimming resistors.


  • Audio Power-Amp Biasing
  • Instrumentation and Industrial Controls
  • Optical Transceivers
  • Optical Transponders
  • Replacement for Mechanical Variable Resistors and Dip Switches
  • RF Power Amps

Product Lifecycle icon-not-recommended Not Recommended for New Designs

This designates products ADI does not recommend broadly for new designs.

Design Resources

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.

PCN-PDN Information

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Buy Now Pricing

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List Pricing

(*)The 1Ku 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. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.



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