MCP4241-104E/SL

Digital Potentiometers Overview

The MCP4241-104E/SL is a dual-channel digital potentiometer IC featuring non-volatile memory and WiperLock technology. It provides two independent 7-bit resistor networks with 129 adjustable taps, each rated at 100 kΩ nominal resistance (±20% tolerance). The device operates on a supply voltage range of 2.7V to 5.5V for full analog specification, supporting serial SPI communication up to 10 MHz. Key electrical characteristics include a typical wiper resistance of 75 Ω, low temperature coefficients, and high-voltage tolerant digital inputs capable of withstanding up to 12.5V.

Digital Potentiometers Feature Summary

• Dual Potentiometer Configuration: Contains two independent 7-bit (129-step) resistor networks with 100 kΩ nominal resistance.
• Non-Volatile Memory: Features Data EEPROM for saving wiper settings and WiperLock™ technology to secure calibration data against overvoltage events.
• High-Speed SPI Interface: Supports standard SPI modes (0,0 and 1,1) with clock frequencies up to 10 MHz for rapid register updates.
• Extended Operating Range: Operates from -40°C to +125°C with high-voltage tolerant digital inputs (up to 12.5V) and brown-out reset protection.

Digital Potentiometers Applications

• Audio Volume Control and Tone Adjustment
• Programmable Gain Amplifiers
• Voltage Reference Trimming
• Variable Voltage Dividers

Digital Potentiometers Procurement Notes

Verify the specific suffix 'SL' corresponds to the SOIC-14 narrow package when sourcing. Confirm that the application environment does not exceed the 12.5V limit on digital input pins. Ensure power supply stability within the 2.7V to 5.5V range to maintain specified analog performance parameters.

Digital Potentiometers Selection Notes

Select this model for applications requiring persistent resistance settings after power loss. Choose the 100 kΩ variant if higher impedance levels are needed to minimize current consumption. Consider the MCP4242 series if rheostat configuration is preferred over potentiometer mode. Verify thermal dissipation requirements for the SOIC-14 package in high-temperature environments.

Digital Potentiometers Part Context

This component belongs to the MCP414X/416X/424X/426X family of single and dual SPI digital potentiometers with non-volatile memory. It shares architectural similarities with volatile memory variants like the MCP4231 but adds EEPROM storage capabilities. The '104' designation specifically indicates the 100 kΩ resistance value within the broader product line.

Digital Potentiometers Replacement Considerations

MCP4241-104E/MF

Digital Potentiometers FAQ

What is the maximum frequency for the SPI interface?

The SPI interface supports clock frequencies up to 10 MHz when the supply voltage is between 2.7V and 5.5V.

How many adjustment steps does the potentiometer offer?

As a 7-bit device, it offers 129 discrete resistance steps (taps) per channel.

Can the digital inputs handle voltages higher than VDD?

Yes, the digital input pins (CS, SCK, SDI, WP, SHDN) are high-voltage tolerant and can withstand up to 12.5V regardless of the VDD level.