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MCP4631-103E/ST

MCP4631-103E/ST Description

The MCP4631-103E/ST from Microchip Technology is a dual-channel, 10kΩ digital potentiometer featuring 129 taps and volatile memory, designed for precision analog adjustments in modern electronic systems. Operating over a 1.8V to 5.5V supply range, it offers ±20% tolerance and a 150ppm/°C temperature coefficient, ensuring stable performance across varying conditions. The device utilizes an I2C interface for digital control, enabling seamless integration into microcontroller-based designs. Packaged in a 14-TSSOP tube, it is RoHS3 compliant and rated for MSL 1 (unlimited) moisture sensitivity, making it suitable for automated assembly processes.

MCP4631-103E/ST Features

• Dual-channel potentiometer with selectable I2C addresses, allowing multiple devices on a single bus.
• Low wiper resistance (75Ω typ) minimizes signal distortion in precision circuits.
• Linear taper for uniform resistance adjustments, ideal for calibration and tuning applications.
• Wide voltage range (1.8V–5.5V) supports both low-power and standard logic systems.
• Volatile memory ensures settings reset on power cycle, suitable for dynamic applications.
• Surface-mount TSSOP package optimizes board space in compact designs.

MCP4631-103E/ST Applications

• Audio equipment: Volume control, tone adjustment, and gain staging in portable devices.
• Industrial automation: Sensor calibration, feedback loop tuning, and process control.
• Test & measurement: Programmable voltage dividers and reference voltage generation.
• Consumer electronics: Display brightness/contrast adjustment and user-configurable settings.
• IoT devices: Low-power, digitally controlled resistance networks for sensor interfacing.

Conclusion of MCP4631-103E/ST

The MCP4631-103E/ST stands out for its dual-channel flexibility, I2C programmability, and robust performance in diverse environments. Its low wiper resistance and wide voltage range make it superior to single-channel or fixed-address alternatives, particularly in space-constrained or multi-device systems. Whether for audio, industrial, or IoT applications, this digital potentiometer delivers precision and reliability, backed by Microchip’s proven quality.