MCP4241-502E/ML

Digital Potentiometers Overview

The MCP4241-502E/ML is a dual-channel, 7-bit digital potentiometer featuring non-volatile memory and WiperLock™ technology. It operates within a supply voltage range of 2.7V to 5.5V and supports an SPI serial interface with clock frequencies up to 10 MHz. The device provides two independent resistor networks, each offering 128 resistance steps (129 taps) with a nominal total resistance of 5 kΩ. Key electrical characteristics include a typical wiper resistance of 75 Ω, a bandwidth of 2 MHz for the 5 kΩ configuration, and high-voltage tolerant digital inputs capable of withstanding up to 12.5V.

Digital Potentiometers Feature Summary

• Dual 7-bit digital potentiometers with 128 steps and 5 kΩ nominal resistance
• Non-volatile EEPROM storage with WiperLock™ technology for secure calibration settings
• SPI interface supporting 10 MHz operation in modes 0,0 and 1,1
• High-voltage tolerant digital inputs (up to 12.5V) and split-rail capability

Digital Potentiometers Applications

• Audio volume control and tone adjustment circuits
• Programmable gain amplifiers and sensor signal conditioning
• Calibration of analog-to-digital and digital-to-analog converters
• Variable biasing and reference voltage generation

Digital Potentiometers Procurement Notes

Verify the ordering suffix '/ML' corresponds to the MSOP package type as specified in the datasheet. Confirm that the '-502' suffix indicates the 5 kΩ resistance value. Ensure the 'E' suffix denotes compliance with environmental standards if required by the design specification. Cross-reference the full part number against official Microchip documentation to confirm availability and revision status.

Digital Potentiometers Selection Notes

Select this component when dual-channel resolution is required without the need for volatile-only RAM-based devices. The 7-bit resolution offers 128 steps, suitable for applications where finer 8-bit granularity is unnecessary. The non-volatile memory feature eliminates the need for external storage of calibration data. Ensure the system voltage remains within the 2.7V to 5.5V range for full analog performance.

Digital Potentiometers Part Context

This device belongs to the MCP42XX family of dual digital potentiometers. It shares architectural similarities with the MCP41XX single-potentiometer series but integrates two independent channels. The '4' in the model number indicates 7-bit resolution with non-volatile memory, distinguishing it from the '3' series (RAM only) and '6' series (8-bit resolution).

Digital Potentiometers Replacement Considerations

For single-channel applications, consider the MCP4141-502E/ML. For higher resolution requirements, the MCP4261-502E/ML provides 8-bit resolution. If volatile memory is acceptable, the MCP4231-502E/ML offers a lower-cost alternative.