MCP4141-502E/MF

Digital Potentiometers Overview

The MCP4141-502E/MF is a single-channel digital potentiometer featuring non-volatile memory and WiperLock technology. It provides 257 resistance steps with a nominal R_AB of 5 kΩ (±20%). The device operates on a supply voltage range of 2.7V to 5.5V, supporting serial interface frequencies up to 10 MHz in modes 0,0 and 1,1. Key electrical characteristics include a typical wiper resistance of 75 Ω, a bandwidth of 2 MHz at 5 kΩ, and an operating temperature range from -40°C to +125°C.

Digital Potentiometers Feature Summary

• Non-volatile EEPROM memory with automatic recall of saved wiper settings and WiperLock™ security.
• High-voltage tolerant digital inputs capable of tolerating up to 12.5V.
• SPI serial interface supporting high-speed read/write operations at 10 MHz.
• Resistor network terminal disconnect feature via Shutdown pin or TCON register.

Digital Potentiometers Applications

• Industrial process control systems requiring precise analog adjustment.
• Audio equipment for gain and volume control applications.
• Instrumentation utilizing split-rail power configurations.
• Calibration circuits where persistent setting retention is required.

Digital Potentiometers Procurement Notes

Verify the specific package marking and date code against the manufacturer's latest documentation. Confirm that the MF suffix corresponds to the intended 3x3 DFN package variant. Ensure compatibility with system voltage levels, particularly regarding the high-voltage tolerant inputs if interfacing with 12.5V logic signals.

Digital Potentiometers Selection Notes

Select this component when non-volatile storage of the wiper position is necessary to maintain calibration after power loss. The 5 kΩ resistance value suits moderate current applications. Consider the 3x3 DFN package dimensions for space-constrained PCB layouts. Verify SPI mode compatibility (0,0 or 1,1) with the host microcontroller.

Digital Potentiometers Part Context

This part belongs to the MCP41XX series of single-channel digital potentiometers. It shares architectural similarities with the MCP4161 but offers 7-bit resolution (257 steps) compared to the 8-bit version. It differs from volatile variants like the MCP4131 by including EEPROM for data retention.

Digital Potentiometers Replacement Considerations

The MCP4141-502E/MS serves as a surface-mount alternative using an MSOP-8 package. For higher resolution requirements, the MCP4161-502E/MF provides 8-bit (257-step) operation within the same footprint and feature set.