MCP4252T-503E/UN

Digital Potentiometers Overview

The MCP4252T-503E/UN is a dual-channel digital potentiometer IC featuring volatile memory and an SPI serial interface. It provides two independent resistor networks, each with 8-bit resolution offering 256 taps (257 steps). The device supports a nominal resistance of 50 kΩ with a tolerance of ±20%. Operating voltage ranges from 1.8V to 5.5V for general operation, while full device characteristics are specified between 2.7V and 5.5V. The unit utilizes a UN package.

Digital Potentiometers Feature Summary

• Dual resistor network configuration with 8-bit (256 tap) resolution
• SPI serial interface supporting 10 MHz clock speeds in modes 0,0 and 1,1
• High-voltage tolerant digital inputs capable of withstanding up to 12.5V
• Wide operating voltage range from 1.8V to 5.5V

Digital Potentiometers Applications

• Audio volume control circuits
• Programmable gain amplifiers
• Voltage reference adjustment
• Sensor biasing and calibration

Digital Potentiometers Procurement Notes

Verify the specific ordering suffix against official Microchip documentation to confirm package type and tape-and-reel packaging specifications. Ensure compatibility with system voltage levels and SPI timing requirements before integration.

Digital Potentiometers Selection Notes

Select this component when a dual-channel digital potentiometer with high-voltage tolerant inputs is required. The volatile memory requires external power retention or periodic saving if state preservation is needed across power cycles. Confirm the 50 kΩ resistance value aligns with circuit impedance requirements.

Digital Potentiometers Part Context

This part belongs to the MCP41XX/MCP42XX family of single and dual digital potentiometers. These devices are designed for applications requiring remote programmability of resistance values via standard serial interfaces, replacing mechanical potentiometers in space-constrained designs.

Digital Potentiometers Replacement Considerations

Direct replacements within the same family include other MCP425X variants with different resistance values or packages. Cross-family substitution requires verification of pinout compatibility, memory type (volatile vs. non-volatile), and interface speed limitations.