MCP4341T-502E/ML

Digital Potentiometers Overview

The MCP4341T-502E/ML is a quad-channel digital potentiometer IC featuring non-volatile memory and WiperLock technology. It provides four independent resistor networks with 7-bit resolution (128 taps) and a nominal resistance of 5 kΩ. The device operates on a supply voltage range of 2.7V to 5.5V, supporting high-speed SPI serial interfaces up to 10 MHz. Key electrical characteristics include a typical wiper resistance of 75 Ω, low temperature coefficients, and high-voltage tolerant digital inputs up to 12.5V.

Digital Potentiometers Feature Summary

• Quad Resistor Network: Four independent potentiometers or rheostats in a single package.
• Non-Volatile Memory: Stores wiper settings using EEPROM with automatic recall via WiperLock Technology.
• High-Speed SPI Interface: Supports 10 MHz operation in modes 0,0 and 1,1 for rapid register updates.
• Extended Voltage Range: Operates from 2.7V to 5.5V with high-voltage tolerant inputs up to 12.5V.

Digital Potentiometers Applications

• Programmable gain amplifiers requiring precise resistance adjustment.
• Voltage reference trimming in precision measurement systems.
• Audio volume control and equalization circuits.
• Industrial process control loop calibration.

Digital Potentiometers Procurement Notes

Verify the specific suffix 'E/ML' corresponds to the QFN-20 package and RoHS compliance when sourcing. Confirm that the 'T' designation indicates tape and reel packaging for automated assembly. Ensure the ordering code matches the required 5 kΩ resistance value and 7-bit resolution specifications.

Digital Potentiometers Selection Notes

Select this component for applications requiring persistent resistance settings without external backup power. The 5 kΩ value suits moderate current applications, while the quad configuration reduces board space compared to single-channel devices. Consider the 7-bit resolution if higher precision than 8-bit is not required, balancing cost and performance.

Digital Potentiometers Part Context

This part belongs to the MCP434X family of quad SPI digital potentiometers. It shares features with the MCP436X series but differs in resolution, offering 7-bit steps instead of 8-bit. The device integrates non-volatile memory to retain settings across power cycles, distinguishing it from volatile RAM-based counterparts like the MCP433X.

Digital Potentiometers Replacement Considerations

Direct replacements within the same family include the MCP4341T-102E/ML (10 kΩ), MCP4341T-503E/ML (50 kΩ), and MCP4341T-104E/ML (100 kΩ). For higher resolution, consider the MCP4361T-502E/ML which offers 8-bit resolution. Ensure pin compatibility and voltage ratings match the existing design constraints.