MCP4141-502E/MS

Digital Potentiometers Overview

The MCP4141-502E/MS is a single-channel digital potentiometer IC from Microchip Technology, featuring non-volatile memory and WiperLock™ technology. It offers 128 taps (7-bit resolution) with a nominal resistance of 5 kΩ. The device operates on a supply voltage range of 2.7V to 5.5V for full analog characteristics, supporting serial interface operation down to 1.8V. Key electrical parameters include a typical wiper resistance of 75 Ω, a bandwidth of 2 MHz at 5 kΩ, and an operating temperature range of -40°C to +125°C. It utilizes a standard SPI interface.

Digital Potentiometers Feature Summary

• Non-volatile EEPROM memory with WiperLock™ technology for secure calibration settings
• SPI serial interface supporting modes 0,0 and 1,1 with up to 10 MHz clock speed
• High-voltage tolerant digital inputs capable of withstanding up to 12.5V
• Resistor terminal disconnect feature via SHDN pin or TCON register

Digital Potentiometers Applications

• Industrial process control systems requiring precise gain adjustment
• Audio equipment for volume and tone control applications
• Test and measurement instruments needing programmable attenuation
• Power supply circuits for voltage reference trimming

Digital Potentiometers Procurement Notes

Verify the specific ordering suffix '/MS' corresponds to the MSOP-8 package when sourcing components. Confirm that the '-502' designation aligns with the required 5 kΩ resistance value for the application. Ensure compatibility with the extended industrial temperature range specifications if operating in extreme environments.

Digital Potentiometers Selection Notes

Select this component for designs requiring persistent wiper position storage after power loss. The high-voltage tolerant inputs simplify interfacing with legacy logic levels without additional level shifters. Consider the 75 Ω typical wiper resistance when calculating signal integrity and loading effects in high-frequency applications.

Digital Potentiometers Part Context

This part belongs to the MCP414X family of single-channel digital potentiometers. It shares architectural similarities with the MCP416X series but differs in resolution, offering 7-bit steps compared to the 8-bit options available in other variants within the same product line.

Digital Potentiometers Replacement Considerations

Direct replacements include the MCP4141-103E/MS (10 kΩ), MCP4141-503E/MS (50 kΩ), and MCP4141-104E/MS (100 kΩ). These alternatives maintain identical pinouts and functionality while providing different resistance values.