MCP4252-503E/MF

Digital Potentiometers Overview

The MCP4252-503E/MF is a dual-channel digital potentiometer IC from Microchip Technology, featuring volatile memory and an SPI serial interface. It provides two independent resistor networks with 8-bit resolution (256 taps) and a nominal resistance of 50 kΩ. The device operates within a supply voltage range of 1.8V to 5.5V and supports high-voltage tolerant digital inputs up to 12.5V. Packaged in a 10-lead DFN (3x3 mm), it offers low wiper resistance and extended temperature operation from -40°C to +125°C.

Digital Potentiometers Feature Summary

• Dual Resistor Network: Two independent 50 kΩ channels with 8-bit (256 tap) resolution.
• SPI Interface: Supports 10 MHz clock speeds in modes 0,0 and 1,1 for high-speed read/write operations.
• High-Voltage Tolerant Inputs: Digital control pins tolerate voltages up to 12.5V.
• Terminal Disconnect: Features shutdown pin and terminal control register for resistor network isolation.

Digital Potentiometers Applications

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

Digital Potentiometers Procurement Notes

Verify the ordering suffix 'MF' corresponds to the 10-lead DFN package with exposed thermal pad as specified in the datasheet. Confirm that the 'E' suffix indicates RoHS compliance. Ensure the specific revision level matches the design requirements, as device characteristics are specified across the full operating temperature range.

Digital Potentiometers Selection Notes

Select this component when dual isolated digital potentiometers are required with SPI connectivity. The 50 kΩ resistance value suits moderate impedance applications. Verify that volatile memory behavior aligns with system power cycling needs, as settings are lost upon power loss. Ensure the PCB layout accommodates the DFN package dimensions and thermal pad requirements.

Digital Potentiometers Part Context

This part belongs to the MCP413X/415X/423X/425X family of single and dual SPI digital potentiometers. It shares core features like high-voltage tolerant inputs and low wiper resistance with other members of the series, differing primarily in channel count, resolution, and resistance values.

Digital Potentiometers Replacement Considerations

Direct replacements within the same family include other MCP425X variants with different resistance values or packages. Cross-family substitution requires verifying interface compatibility and pinout alignment.