MCP4017T-103E/LTYVAO

Overview

The MCP4017T-103E/LTYVAO is a single-channel digital potentiometer featuring 7-bit resolution with 128 discrete taps. It utilizes an I²C serial interface for control and employs volatile RAM to store wiper settings, which reset to mid-scale upon power-up. The device supports R_AB resistance values of 5 kΩ, 10 kΩ, 50 kΩ, or 100 kΩ, with the '103' suffix indicating a nominal 10 kΩ configuration. It operates within a supply voltage range of 1.8V to 5.5V and includes brown-out reset protection. The component is housed in a compact SC70-6 package and is qualified for extended industrial temperature ranges from -40°C to +125°C.

Feature Summary

• 7-bit resolution providing 128 adjustable wiper positions via I²C interface
• Volatile memory architecture with Power-on Reset (POR) defaulting to mid-scale
• Low static current consumption of 2.5 µA typical
• Brown-out reset protection at approximately 1.5V

Applications

• Programmable gain amplifier biasing
• Voltage reference adjustment
• Audio volume control circuits

Procurement Notes

Verify the specific ordering suffix 'LTYVAO' against the manufacturer's official documentation to confirm packaging details and material compliance status. Ensure the selected resistance value matches the system requirements, as the base model supports multiple standard values.

Selection Notes

Select this component when a low-pin-count, I²C-controlled variable resistor is required. The volatile memory characteristic necessitates re-initialization after power cycles unless the host system manages state retention. Confirm that the 10 kΩ resistance value aligns with the target circuit impedance.

Part Context

This part belongs to the MCP4017/18/19 family of digital potentiometers. While the MCP4018 offers a potentiometer configuration and the MCP4019 uses a 5-pin package, the MCP4017 specifically provides a rheostat configuration in a 6-pin SC70 package.

Replacement Considerations

MCP40D17T-103E/LT is a documented alternative within the same product family offering similar electrical characteristics.