The MCP4651-104E/ST is a high-performance digital potentiometer designed by Microchip Technology, a global leader in microcontroller and analog semiconductors. This digital potentiometer is a versatile and reliable solution for applications requiring variable resistor settings. It is part of Microchip's MCP46XX series and offers a wide range of features making it suitable for various electronic applications.

Key Features

• Resistance Value: The MCP4651-104E/ST offers a maximum resistance of 100 kΩ, which can be adjusted digitally through an I²C compatible interface.
• Resolution: It provides a resolution of 8 bits (256 wiper steps), allowing for precise control over the resistance value.
• Memory: Equipped with non-volatile memory (EEPROM), the device can store the wiper position for future use, ensuring that the last set resistance value is maintained even after power cycling.
• Dual Potentiometer: This model features two potentiometers in one package, which can be independently controlled, providing flexibility and reducing the need for additional components.
• Interface: The I²C serial interface ensures easy integration into most microcontroller-based systems, allowing for simple communication and control.
• Operating Voltage: It operates within a range of 2.7V to 5.5V, making it compatible with both 3.3V and 5V systems.
• Package: The MCP4651-104E/ST comes in a TSSOP package, which is suitable for surface mount technology and is ideal for space-constrained applications.

Applications

The digital potentiometer is an excellent choice for various applications, including:

• Automated adjustments to control system parameters
• Calibration of system tolerances or offsets
• Adjustable power supplies and voltage dividers
• Audio volume control and tone adjustment

Summary

The MCP4651-104E/ST by Microchip Technology is a dual-channel, 100 kΩ digital potentiometer with an I²C interface and non-volatile memory. It provides precise digital control over resistance settings and is suitable for a variety of applications where adjustment and tuning are required. Its small form factor and ease of integration make it an ideal choice for designers looking to add adjustable resistance capabilities to their electronic projects.