MCP4652T-104E/UN

Digital Potentiometers Overview

The MCP4652T-104E/UN is a dual-channel digital potentiometer IC featuring two independent rheostat networks. It provides 8-bit resolution with 257 discrete taps and a nominal resistance (RAB) of 100 kΩ. The device operates on a supply voltage ranging from 1.8V to 5.5V, with full analog characteristics specified between 2.7V and 5.5V. It utilizes an I²C serial interface supporting standard, fast, and high-speed modes up to 3.4 MHz. Key electrical parameters include a typical wiper resistance of 75 Ω, a temperature coefficient of 150 ppm/°C across the extended range (-40°C to +125°C), and volatile memory for wiper settings.

Digital Potentiometers Feature Summary

• Dual resistor network configuration with 8-bit (257-step) resolution
• I²C serial interface supporting 100 kHz, 400 kHz, and 3.4 MHz clock speeds
• High-voltage tolerant digital inputs capable of withstanding up to 12.5V
• Brown-out reset protection with a typical threshold of 1.5V

Digital Potentiometers Applications

• Programmable gain amplifiers requiring precise resistance adjustment
• Voltage reference trimming in measurement systems
• Digital control of analog signal attenuation or biasing

Digital Potentiometers Procurement Notes

Verify the specific suffix 'T' indicates tape-and-reel packaging and 'UN' denotes the MSOP-10 package variant. Confirm that the 'E' suffix corresponds to the RoHS-compliant version. Ensure the required operating voltage aligns with the device's specification limits, noting that analog performance is guaranteed within the 2.7V to 5.5V range.

Digital Potentiometers Selection Notes

Select this component when a dual-rheostat configuration is required rather than a potentiometer setup. The 100 kΩ resistance value suits applications needing higher impedance levels compared to the 5 kΩ or 10 kΩ variants. Consider the volatile memory characteristic, as wiper positions will reset to mid-scale upon power-up if non-volatile retention is not needed.

Digital Potentiometers Part Context

This part belongs to the MCP46XX family of dual digital potentiometers. It shares the same core architecture and interface protocols as single-channel counterparts like the MCP45XX series but integrates two independent resistor networks into a single package. The device is designed for applications requiring compact solutions for multiple analog adjustments.

Digital Potentiometers Replacement Considerations

Direct functional substitutes within the same family include the MCP4651-104E/UN for single-channel applications or other resistance values such as MCP4652-503E/UN for 50 kΩ requirements. Verify pin compatibility and package dimensions when substituting.