MCP4011T-503E/MC

Overview

The MCP4011T-503E/MC is a volatile, single-channel digital potentiometer manufactured by Microchip Technology. It features a 6-bit resolution providing 64 taps and a nominal resistance of 50 kΩ with ±20% tolerance. The device operates on a supply voltage range of 1.8V to 5.5V, drawing a maximum static current of 1 µA when the serial interface is inactive. Control is managed via a simple Up/Down (U/D) protocol using CS and U/D pins. The component supports high-voltage tolerant inputs up to 12.5V and functions within an extended temperature range of -40°C to +125°C.

Feature Summary

• 6-bit resolution with 64 taps for precise resistance adjustment
• Up/Down (U/D) serial control interface with high-voltage tolerant inputs (up to 12.5V)
• Low power consumption with 1 µA maximum static current in inactive state
• Extended operating temperature range from -40°C to +125°C

Applications

• Volume control in audio equipment
• Gain adjustment in instrumentation amplifiers
• Voltage reference trimming
• Programmable gain settings in sensor signal conditioning

Procurement Notes

Verify the specific suffix 'MC' corresponds to the DFN-8 EP package as indicated in distributor listings. Confirm RoHS compliance status through official Microchip documentation or authorized distributors before procurement. Ensure the volatile memory characteristic aligns with system requirements regarding power-on wiper states.

Selection Notes

Select this component for applications requiring a simple two-wire control interface without I2C or SPI complexity. The 50 kΩ value suits moderate impedance circuits. Consider the volatile nature of the wiper setting; if non-volatile storage is required, alternative models like the MCP45 series should be evaluated. Verify that the 12.5V input tolerance meets the logic level requirements of the controlling microcontroller.

Part Context

This part belongs to the MCP4011/2/3/4 family of low-cost, 64-step digital potentiometers. The 'MCP4011' designation specifically indicates a potentiometer configuration, whereas other variants in the family may offer rheostat configurations. The 'T' suffix denotes tape and reel packaging, while '503' specifies the 50 kΩ resistance value.

Replacement Considerations

Direct pin-compatible replacements within the same family include MCP4012, MCP4013, and MCP4014, though these may differ in internal configuration (rheostat vs. potentiometer). For non-volatile alternatives, consider the MCP45 series.