Maxim Integrated's DS3905U-020+T&R is a highly versatile, non-volatile digital potentiometer that offers a robust solution for a wide range of applications requiring precise resistance adjustments. This compact, integrated component is designed to provide the functionality of an analog potentiometer, but with enhanced digital control and memory retention capabilities.

Key Features

• Non-Volatile Memory: The DS3905U-020+T&R features non-volatile memory that retains the last resistance setting even after power-off, ensuring consistent performance and eliminating the need for recalibration upon power cycling.
• Resistance Range: With a resistance range of 0 to 200kΩ, this digital potentiometer is suitable for a wide array of applications, from adjusting signal levels to tuning filters and setting bias conditions.
• Resolution: The device offers 256-position resolution, allowing for fine-grained control over resistance adjustments.
• Three Potentiometers: It includes three potentiometers in one package, providing additional flexibility and reducing the need for multiple components.
• Serial Interface: The DS3905U-020+T&R communicates via a 2-wire, I2C-compatible serial interface, enabling easy integration into existing digital systems.
• Supply Voltage: It operates over a wide supply voltage range of 2.7V to 5.5V, accommodating various power supply specifications.
• Temperature Range: The device is specified for operation over the extended industrial temperature range of -40°C to +85°C, making it suitable for harsh environments.
• Packaging: Offered in a compact 10-pin µSOP package, the DS3905U-020+T&R saves valuable board space.

Applications

The DS3905U-020+T&R is ideal for applications that require precise resistance adjustments without the need for constant human intervention. It is commonly used in:

• Automated calibration systems
• Volume control in audio systems
• Adjustable power supplies
• LCD screen contrast settings
• Gain control in amplifiers

Ordering Information

The product is available in tape and reel format (T&R) for automated assembly processes, simplifying the manufacturing and handling of the component for high-volume production environments.