MCP4011T-502E/MS

Overview

The MCP4011T-502E/MS is a volatile, 6-bit digital potentiometer manufactured by Microchip Technology. It features a nominal resistance of 5 kΩ with 63 resistors and 64 taps. The device utilizes a simple Up/Down (U/D) serial interface for wiper control. Operating voltage ranges from 1.8V to 5.5V, with analog characteristics specified from 2.7V to 5.5V. It supports an extended temperature range of –40°C to +125°C and offers low power consumption with a maximum static current of 1 µA.

Feature Summary

• 6-bit resolution providing 64 taps for precise resistance adjustment
• Simple Up/Down (U/D) serial control interface
• High-voltage tolerant digital inputs up to 12.5V
• Low power operation with 1 µA maximum static current

Applications

• Volume control in audio circuits
• Gain adjustment in instrumentation amplifiers
• Voltage reference trimming
• Sensor calibration systems

Procurement Notes

Verify the package type matches the MSOP-8 specification for the /MS suffix. Confirm the 'E' designation indicates RoHS compliance and lead-free construction. Ensure the T suffix requirement for tape and reel packaging aligns with automated assembly needs. Check datasheet specifications for high-voltage input thresholds if interfacing with 12V logic levels.

Selection Notes

Select this component when a volatile memory type is acceptable, as settings are lost upon power loss. The U/D interface requires only two pins, suitable for microcontrollers with limited I/O. Consider the 5 kΩ resistance value against load requirements. Verify that the 1.8V minimum operating voltage meets the system's supply rail constraints.

Part Context

This part belongs to the MCP4011/2/3/4 family of low-cost, 64-step digital potentiometers. The MCP4011 variant is specifically configured for potentiometer mode, though it can function as a rheostat by floating one terminal. Other family members include the MCP4012, MCP4013, and MCP4014, which share similar electrical characteristics but may differ in pinout or specific configuration defaults.

Replacement Considerations

Direct replacements within the same family include MCP4011T-502E/MC (DFN package) or MCP4011-502E/MS (tube packaging). Cross-family alternatives like the MCP41xx series offer SPI interfaces instead of U/D. Ensure any substitute maintains the 64-tap resolution and compatible package dimensions.