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Digital potentiometers (digipots) are used to trim and scale analog signals. They provide an output resistance that is variable based on digital inputs and so are sometimes referred to as resistive digital-to-analog converters (RDACs).

Digipots are typically available with linear or logarithmic tap points. In addition, Maxim offers some further variations of the basic digipot. Nonvolatile digipots retain their last programmed wiper position when the power supply is switched off. OTP digpots set the wiper's power-on reset (POR) position to a user-defined value.

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Featured Products

MAX5440 Stereo Volume Control with Rotary Encoder Interface

MAX5440 Stereo Volume Control with Rotary Encoder Interface

The MAX5440 dual, 40kΩ logarithmic taper volume control features a debounced up/down interface f...
  • Logarithmic Taper Volume Control with (31) 2dB Steps
  • Low-Power Wiper Buffers Provide 0.003% THD
  • Single +2.7V to +5.5V or Dual ±2.7V Supply Voltage Operation
  • Low 0.5µA Shutdown Supply Current
  • Integrated Bias Voltage Generator
  • Five-Segment LED Volume/Balance Indicator
  • Clickless Switching
  • 40kΩ End-to-End Fixed Resistance Value
  • Mute Function Toggles to -90dB (typ)
  • Power-On Reset to -12dBFS Wiper Position
MAX5128 128-Tap, Nonvolatile, Linear-Taper Digital Potentiometer in 2mm x 2mm µDFN Package

MAX5128 128-Tap, Nonvolatile, Linear-Taper Digital Potentiometer in 2mm x 2mm µDFN Package

The MAX5128 nonvolatile, single, linear-taper, digital potentiometer performs the function of a ...
  • Ultra-Small, 2mm x 2mm, 8-Pin µDFN Package
  • Power-On Recall of Wiper Position from Nonvolatile Memory
  • 22kΩ End-to-End Resistance
  • 128 Tap Positions
  • 5ppm/°C Ratiometric Temperature Coefficient
  • 1.5µA (max) Standby Supply Current
  • +2.7V to +5.25V Single Supply Operation
  • 80,000 Wiper Store Cycles
  • 50-Year Wiper Data Retention
MAX5486 Stereo Volume Control with Pushbutton Interface

MAX5486 Stereo Volume Control with Pushbutton Interface

The MAX5486 dual 40kΩ logarithmic taper volume control features a debounced pushbutton up/down i...
  • Debounced Pushbutton Interface
  • SmartWiper Control Advances Wiper Rate
  • Low-Power Wiper Buffers Provide 0.003% THD
  • Bias Generator Eliminates External Op Amps
  • Five-Segment LED Volume/Balance Indicator
  • Clickless Switching
  • Logarithmic Taper Volume Control with (31) 2dB Steps
  • Single +2.7V to +5.5V or Dual ±2.7V Supply Voltage Operation
  • Power-On Reset to -12dBFS Wiper Position
  • MUTE-bar Function Toggles to 90dB (typ)
  • Low 1µA Shutdown Supply Current
  • 40kΩ End-to-End Fixed Resistance Value
  • Small, 24-Pin TSSOP Package
  • MAX5481 10-Bit, Nonvolatile, Linear-Taper Digital Potentiometers

    MAX5481 10-Bit, Nonvolatile, Linear-Taper Digital Potentiometers

    The MAX5481–MAX5484 10-bit (1024-tap) nonvolatile, linear-taper, programmable voltage-dividers a...
    • 1024 Tap Positions
    • Power-On Recall of Wiper Position from Nonvolatile Memory
    • 16-Pin (3mm x 3mm x 0.8mm) TQFN or 14-Pin TSSOP Package
    • 35ppm/°C End-to-End Resistance Temperature Coefficient
    • 5ppm/°C Ratiometric Temperature Coefficient
    • 10kΩ and 50kΩ End-to-End Resistor Values
    • Pin-Selectable SPI-Compatible Serial Interface or Up/Down Digital Interface
    • 1µA (max) Standby Current
    • Single +2.7V to +5.25V Supply Operation
    • Dual ±2.5V Supply Operation
    MAX5394 Single, 256-Tap Volatile, SPI, Low-Voltage Linear Taper Digital Potentiometer

    MAX5394 Single, 256-Tap Volatile, SPI, Low-Voltage Linear Taper Digital Potentiometer

    The MAX5394 single, 256-tap volatile, low-voltage linear taper digital potentiometer offers thre...
    • Single Linear Taper 256-Tap Positions
    • 10kΩ, 50kΩ, and 100kΩ End-to-End Resistance
    • 1.7V to 5.5V Extended Single Supply
    • 0 to 5.25V H, W, L Operating Voltage Independent of VDD
    • 1µA (typ) Supply Current in Low-Power Mode
    • ±1.0 LSB INL, ±0.5 LSB DNL (max) Wiper Accuracy
    • Power-On Sets Wiper to Midscale
    • 50ppm/°C End-to-End Temperature Coefficient
    • 5ppm/°C Ratiometric Temperature Coefficient
    • -40°C to +125°C Operating Temperature Range
    • 2mm x 2mm, 8-Pin TDFN Package
    • SPI-Compatible Serial Interface
    MAX5389 Dual, 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometer

    MAX5389 Dual, 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometer

    The MAX5389 dual, 256-tap, volatile, low-voltage linear taper digital potentiometer offers three...
    • 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
    MAX5395 Single, 256-Tap Volatile, I<sup>2</sup>C, Low-Voltage Linear Taper Digital Potentiometer

    MAX5395 Single, 256-Tap Volatile, I2C, Low-Voltage Linear Taper Digital Potentiometer

    The MAX5395 single, 256-tap volatile, low-voltage linear taper digital potentiometer offers thre...
    • Single Linear Taper 256-Tap Positions
    • 10kΩ, 50kΩ, and 100kΩ End-to-End Resistance
    • 1.7V to 5.5V Extended Single Supply
    • 0 to 5.25V H, W, L Operating Voltage Independent of VDD
    • 1µA (typ) Supply Current in Low-Power Mode
    • ±1.0 LSB INL, ±0.5 LSB DNL (max) Wiper Accuracy
    • Power-On Sets Wiper to Midscale
    • 50ppm/°C End-to-End Temperature Coefficient
    • 5ppm/°C Ratiometric Temperature Coefficient
    • -40°C to +125°C Operating Temperature Range
    • 2mm x 2mm, 8-Pin TDFN Package
    • I²C-Compatible Serial Interface
    MAX5388 Dual, 256-Tap, Volatile Low-Voltage Linear Taper Digital Potentiometers

    MAX5388 Dual, 256-Tap, Volatile Low-Voltage Linear Taper Digital Potentiometers

    The MAX5386/MAX5388 dual, 256-tap, volatile, low- voltage linear taper digital potentiometers of...
    • 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
    • SPI-Compatible Interface
    • Power-On Sets Wiper to Midscale
    • -40°C to +125°C Operating Temperature Range
    MAX5386 Dual, 256-Tap, Volatile Low-Voltage Linear Taper Digital Potentiometers

    MAX5386 Dual, 256-Tap, Volatile Low-Voltage Linear Taper Digital Potentiometers

    The MAX5386/MAX5388 dual, 256-tap, volatile, low- voltage linear taper digital potentiometers of...
    • 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
    • SPI-Compatible Interface
    • Power-On Sets Wiper to Midscale
    • -40°C to +125°C Operating Temperature Range
    MAX5387 Dual, 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometer

    MAX5387 Dual, 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometer

    The MAX5387 dual, 256-tap, volatile, low-voltage linear taper digital potentiometer offers three...
    • 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
    • I²C-Compatible Interface
    • Power-On Sets Wiper to Midscale
    • -40°C to +125°C Operating Temperature Range
    MAX5393 Dual 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometers

    MAX5393 Dual 256-Tap, Volatile, Low-Voltage Linear Taper Digital Potentiometers

    The MAX5391/MAX5393 dual 256-tap, volatile, low-voltage linear taper digital potentiometers offe...
    • Dual, 256-Tap Linear Taper Positions
    • Single +1.7V to +5.5V Supply Operation
    • Low 12µA Quiescent Supply Current
    • 10kΩ, 50kΩ, and 100kΩ End-to-End Resistance Values
    • SPI-Compatible Interface
    • Wiper Set to Midscale on Power-Up
    • -40°C to +125°C Operating Temperature Range

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