MCP4017T-103E/LT

Overview

The MCP4017T-103E/LT is a single-channel digital potentiometer featuring 7-bit resolution with 128 discrete taps. It operates via an I²C interface and utilizes volatile RAM to store wiper settings, which reset to mid-scale (3Fh) upon power-up or brown-out events. The device supports a wide supply voltage range of 1.8V to 5.5V for digital operation and 2.7V to 5.5V for analog specifications. It offers resistance values of 5kΩ, 10kΩ, 50kΩ, and 100kΩ, with the -103 suffix indicating a nominal 10kΩ total resistance between terminals A and B.

Feature Summary

• 7-bit resolution providing 128 distinct wiper positions controlled via I²C protocol.
• Configurable as a rheostat with low wiper resistance (typical 100Ω).
• Brown-out reset protection ensures safe power-on default at mid-scale.
• Low-power operation with typical static current of 2.5µA in inactive mode.

Applications

• Programmable gain amplifier circuits requiring precise resistance adjustment.
• Voltage divider networks for bias level setting in sensor interfaces.
• Audio volume control applications utilizing logarithmic taper options.

Procurement Notes

Verify the specific ordering suffix against the manufacturer's datasheet to confirm package type and temperature grade. Ensure the selected variant matches the required resistance value and memory type for the target application design.

Selection Notes

Select this component when a compact SC70-6 package is required for space-constrained designs. Choose based on the necessary terminal resistance and whether volatile memory behavior aligns with system power management strategies.

Part Context

This part belongs to the MCP4017/18/19 family of digital potentiometers. While sharing core architecture, the MCP4017 is specifically configured as a rheostat in a 6-pin SC70 package, distinguishing it from the potentiometer variants within the same series.

Replacement Considerations

MCP40D17T-103E/LT