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Microchip’s large portfolio of Digital Potentiometers (DigiPots) service a broad range of precision-controlled applications. Our portfolio enables fine tuning with highly accurate, small form factor, digitally controlled resistor solutions. These low-power, compact devices feature six to eight bits of resolution, one- to four-channel counts and are available in both volatile and nonvolatile memory types to support a wide variety of design needs. Tiny packages such as SC-70 and DFN (2 x 3 mm) are offered for space-constrained systems.

Our digital potentiometers offer better precision because of our Integral Nonlinearity (INL), total unadjusted error specs and increase in resolution. Microchip’s digital potentiometers minimize development risk and increase system performance by providing reliable, well-documented functionality and quick fixes for design flaws.

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Download the Digital Potentiometers Design Guide

Benefits of Microchip’s DigiPots


Nonvolatile

  • Automatic recall of potentiometer wiper settings for increased system performance
  • WiperLock™ technology for added EEPROM security
  • General purpose memory locations for calibration

High Voltage

  • +36V Terminal Voltage Range (DGND = V-)
  • ±18V Terminal Voltage Range (DGND = V- + 18V)
  • High voltage provides support for applications using power rails from 10V to 36V or ±5V to ±18V
  • Grade 1 extended temperature range: -40 °C to +125 °C
  • Digital technology eliminates the failure of mechanical POTs
  • Available in 6-, 7- and 8-bit devices, volatile and nonvolatile
  • Additional electromagnetic filtering on select devices provide additional protection in electrically harsh environments

MCP4641

  • Dual-channel
  • 7-bit
  • EEPROM
  • I2C interface

MCP41HV51

  • Single-channel
  • 8-bit
  • SPI interface
  • Advanced technology, industry-first 5 kΩ, 36V digital potentiometer

MCP4361

  • Quad-channel
  • 8-bit
  • EEPROM
  • SPI interface

Are You Working on an Automotive Application?


The low-power, high-precision performance of our AEC-Q100-qualified digital potentiometers make them excellent choices for automotive designs.

Digital Potentiometers


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Reference Designs


Title Part Number
Device Supported
MCP3421 Weight Scale MCP3421DM-WS MCP3421, MCP6V07
MCP3421 Battery Fuel Gauge MCP3421DM-BFG MCP3421, MCP3422, MCP1702, PIC18F4550
MCP355X Tiny Application Sensor MCP355XDM-TAS MCP3550, MCP3551, MCP3553
RTD Temp Sensor TMPSNS-RTD1 MCP3301, MCP41010, MCP6S26, PIC18F2550
RTD Reference Design Board TMPSNSRD-RTD2 MCP3551, MCP9804

Digital Potentiometers