MCP4011-103E/SN

Overview

The MCP4011-103E/SN is a volatile, 6-bit digital potentiometer manufactured by Microchip Technology in an 8-pin SOIC package. It provides a nominal resistance of 10 kΩ with ±20% tolerance and features 64 taps for precise adjustment. 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. It utilizes a simple Up/Down (U/D) control protocol and includes high-voltage tolerant digital inputs capable of withstanding up to 12.5V. The component supports operation across an extended temperature range from -40°C to +125°C.

Feature Summary

• 6-bit resolution providing 64 discrete tap positions for resistance adjustment
• High-voltage tolerant digital inputs allowing CS and U/D signals up to 12.5V
• Low power consumption with typical standby current of 1 µA
• Configurable as either a potentiometer or rheostat via terminal connection

Applications

• Volume control in audio signal processing circuits
• Programmable gain amplifier configurations
• Variable biasing for analog sensors and transducers
• Adjustable reference voltage generation

Procurement Notes

Verify the specific suffix 'SN' corresponds to the SOIC-8 package and confirm the '-103' designation matches the required 10 kΩ resistance value. Ensure the application design accounts for the volatile memory type, which requires re-initialization upon power cycling. Cross-reference the datasheet DS20001978D for absolute maximum ratings to prevent damage during procurement validation.

Selection Notes

Select this component when a low-cost, single-channel digital potentiometer with high-voltage tolerant logic interfaces is required. The 10 kΩ resistance value is suitable for moderate impedance applications. Consider the volatile nature of the wiper setting; if non-volatile storage is necessary, alternative models within the MCP401x family should be evaluated. Verify that the 1 MHz toggle frequency meets the system's update speed requirements.

Part Context

This part belongs to the MCP4011/2/3/4 family of low-cost, 64-step digital potentiometers. The MCP4011 variant specifically offers a potentiometer configuration, whereas other family members may offer rheostat modes or different pinouts. The 'E' suffix indicates the extended temperature rating (-40°C to +125°C), and 'SN' denotes the plastic small-outline integrated circuit (SOIC) package style.

Replacement Considerations

Direct replacements must maintain the 10 kΩ resistance, 64-tap resolution, and SOIC-8 package. Compatible alternatives include other MCP4011 variants with different resistance values or packages, provided the interface timing and voltage tolerances remain compatible.