MCP4162-104E/MF

Digital Potentiometers Overview

The MCP4162-104E/MF is a single-channel digital rheostat manufactured by Microchip Technology. It features an 8-bit resolution providing 257 discrete taps and a nominal resistance (R_AB) of 100 kΩ. The device utilizes non-volatile memory to retain wiper settings, supported by WiperLock™ technology for calibration security. It operates on a supply voltage range of 2.7V to 5.5V for full specifications, with serial interface operation down to 1.8V. Communication is handled via a high-speed SPI interface supporting modes 0,0 and 1,1 at frequencies up to 10 MHz. The component is housed in a compact 3x3 mm DFN-8 package with an exposed thermal pad.

Digital Potentiometers Feature Summary

• Non-volatile Memory: Retains wiper position after power loss; supports WiperLock™ technology.
• High Voltage Inputs: Digital inputs tolerate up to 12.5V, enabling split-rail applications.
• SPI Interface: Supports 10 MHz clock speeds in modes 0,0 and 1,1.
• Terminal Disconnect: Allows resistor network isolation via SHDN pin or TCON register.

Digital Potentiometers Applications

• Calibration storage for application-specific settings
• Split-rail circuit control
• Variable gain adjustment in instrumentation

Digital Potentiometers Procurement Notes

Verify the specific suffix 'MF' corresponds to the 3x3 DFN-8 package with exposed thermal pad as documented in the datasheet. Confirm that the '104' designation indicates the 100 kΩ resistance value. Ensure the ordering code matches the exact package type required for the PCB footprint.

Digital Potentiometers Selection Notes

Select this model for applications requiring a single variable resistor with persistent settings. The 100 kΩ resistance and 8-bit resolution are fixed parameters. Consider the 12.5V tolerant inputs if interfacing with higher voltage logic levels. Verify that the 3x3 DFN package fits the available board space and thermal requirements.

Digital Potentiometers Part Context

This component belongs to the MCP41XX series of single digital potentiometers. The '6' in the part number identifies it as an 8-bit device with non-volatile EEPROM memory. The '2' suffix denotes the rheostat configuration. It shares the same core architecture and interface protocols as other devices in the MCP414X/416X family.

Digital Potentiometers Replacement Considerations

Compatible substitutes within the same family include MCP4162T-104E/MS (MSOP-8 package) and MCP4162-104E/P (PDIP package). These variants offer identical electrical characteristics but differ in physical packaging. Ensure the replacement package is compatible with the existing PCB layout.