MCP4022T-503E/CH

Overview

The MCP4022T-503E/CH is a nonvolatile, 6-bit digital potentiometer manufactured by Microchip Technology. It features a 50 kΩ resistance value with 64 taps and operates within a supply voltage range of 2.7V to 5.5V. The device utilizes a simple Up/Down (U/D) serial interface for wiper control and incorporates WiperLock™ technology to secure settings in EEPROM. Designed for rheostat configuration, it offers low power consumption with a maximum static current of 1 µA and high-voltage tolerant digital inputs up to 12.5V.

Feature Summary

• Nonvolatile memory with WiperLock™ technology for secure setting retention
• Simple Up/Down (U/D) serial control interface
• High-voltage tolerant digital inputs up to 12.5V
• Low-power operation with 1 µA max static current

Applications

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

Procurement Notes

Verify the package type matches the SOT-23-6 specification required for this part number. Confirm the resistance tolerance is ±20% as specified for the -503 suffix. Ensure the design supports the U/D protocol timing requirements for reliable communication.

Selection Notes

Select this component when a rheostat configuration is required rather than a potentiometer setup. The 50 kΩ value suits applications needing higher impedance levels. Verify that the system logic levels are compatible with the high-voltage tolerant inputs if operating above VDD.

Part Context

This part belongs to the MCP4021/2/3/4 family of low-cost nonvolatile digital potentiometers. The MCP4022 variant specifically provides a rheostat configuration in an SOT-23-6 package, distinguishing it from the potentiometer versions like the MCP4021 or MCP4023.

Replacement Considerations

MCP4021T-503E/CH: Potentiometer version in same package. MCP4023T-503E/CH: Potentiometer version in same package. MCP4024T-503E/CH: Rheostat version in SOT-23-5 package.