MCP4361-503E/ML

Digital Potentiometers Overview

The MCP4361-503E/ML is a quad digital potentiometer IC featuring four independent resistor networks with non-volatile memory. It provides 257 taps (8-bit resolution) and supports 50 kΩ resistance values. The device operates on a supply voltage of 2.7V to 5.5V, with serial interface functionality available down to 1.8V. Key specifications include a typical wiper resistance of 75 Ω, a temperature coefficient of 150 ppm/°C across the extended range, and an SPI interface supporting up to 10 MHz. It utilizes WiperLock™ technology for automatic recall of saved settings upon power-up.

Digital Potentiometers Feature Summary

• Quad Resistor Network: Four independent potentiometers or rheostats in a single package.
• Non-Volatile Memory: WiperLock™ technology ensures automatic recall of wiper settings after power cycles.
• High-Voltage Tolerant Inputs: Digital inputs (CS, SCK, SDI, WP, RESET) tolerate voltages up to 12.5V.
• SPI Interface: Supports high-speed read/write operations at frequencies up to 10 MHz.

Digital Potentiometers Applications

• Programmable gain amplifiers
• Voltage reference trimming
• Audio volume control
• Sensor calibration

Digital Potentiometers Procurement Notes

Verify the specific ordering suffix '/ML' corresponds to the 20-QFN (4x4 mm) package when sourcing components. Confirm that the '-503' code indicates the 50 kΩ resistance value required for the design. Ensure the manufacturing source matches the original Microchip Technology datasheet DS22233A to guarantee parameter compliance.

Digital Potentiometers Selection Notes

Select this component for applications requiring four digitally controlled resistors with persistent state retention. The 50 kΩ value suits moderate impedance circuits. Verify that the system logic levels are compatible with the high-voltage tolerant inputs if interfacing with higher voltage domains. Consider the 20-QFN package constraints for PCB layout and thermal dissipation requirements.

Digital Potentiometers Part Context

This part belongs to the MCP434X/436X family of 7/8-bit quad SPI digital potentiometers. The '6' in the model number denotes the 8-bit resolution variant with non-volatile memory, distinguishing it from the 7-bit MCP4341 or volatile RAM-based MCP4331 models within the same series.

Digital Potentiometers Replacement Considerations

Direct pin-compatible replacements within the same package include other variants from the MCP434X/436X family, such as the MCP4361-103E/ML (100 kΩ) or MCP4361-102E/ML (10 kΩ), provided the resistance value meets circuit requirements.