Dual, 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometer

Dual, 256-Step, Up/Down Interface Digital Potentiometer with a 2.6V Supply

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The MAX5389 dual, 256-tap, volatile, low-voltage linear taper digital potentiometer offers three end-to-end resistance values of 10kΩ, 50kΩ, and 100kΩ. Operating from a single +2.6V to +5.5V power supply, the device provides a low 35ppm/°C end-to-end temperature coefficient. The MAX5389 features an up/down interface.

The small package size, low supply operating voltage, low supply current, and automotive temperature range of the MAX5389 make the device uniquely suited for the portable consumer market and battery backup industrial applications.

The MAX5389 is specified over the automotive -40°C to +125°C temperature range and is available in a 14-pin TSSOP package.

MAX5389: Functional Diagram MAX5389: Functional Diagram Enlarge+

Key Features

  • Dual, 256-Tap Linear Taper Positions
  • Single +2.6V to +5.5V Supply Operation
  • Low (< 1µA) Quiescent Supply Current
  • 10kΩ, 50kΩ, 100kΩ End-to-End Resistance Values
  • Up/Down Interface
  • Power-On Sets Wiper to Midscale
  • -40°C to +125°C Operating Temperature Range


  • Adjustable Voltage References/Linear Regulators
  • Audio Mixing
  • Low-Drift Programmable Filters and Amplifiers
  • Low-Voltage Battery Applications
  • Mechanical Potentiometer Replacement
  • Programmable Delays and Time Constants
Part NumberTaperPOTsControl InterfaceWiper MemoryStepsREND-TO-END
Res. Tol.
Temp. Coeff.
Wiper Resistance
typtypmaxSee Notes
MAX5389 Linear2Up/DownVolatile256
$0.96 @1k
See All Digital Potentiometers (124)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX5389EVKIT: Evaluation Kit for the MAX5389

Technical Documents

Tutorial 5036 Calibration Circuit Library
Tutorial 1828 Audio Gain Control Using Digital Potentiometers

Quality and Environmental Data

Product Reliability Reports: MAX5389.pdf 
Lead-Free Package Tin (Sn) Whisker Reports

CAD Symbols and Footprints

  • MAX5389LAUD+
  • MAX5389LAUD+T
  • MAX5389MAUD+
  • MAX5389MAUD+T
  • MAX5389NAUD+
  • MAX5389NAUD+T
  • Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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