Maxim Integrated DS3908N+T&R Digital Potentiometer

The Maxim Integrated DS3908N+T&R is a versatile, low-voltage dual nonvolatile (NV) digital potentiometer designed to optimize the performance of electronic systems. This digital potentiometer, also known as a digipot, serves as an ideal solution for applications requiring precise resistance adjustments. The DS3908N+T&R is commonly used in adjusting LCD screen brightness, setting motor control parameters, and tuning filter circuits, among other applications.

This particular model offers a wide range of features that make it an excellent choice for designers looking to improve their system's flexibility and performance. The device operates from a 2.7V to 5.5V supply voltage, making it suitable for both 3V and 5V systems. It features two potentiometers in one package, each with 256 positions, allowing for fine-grained control over resistance settings.

One of the key advantages of the DS3908N+T&R is its nonvolatile memory, which ensures that the resistance settings are preserved even when the power is turned off. This means that the device will maintain its last programmed position when power is restored, eliminating the need for recalibration or manual adjustments. Additionally, the digipot has an I²C-compatible serial interface, which simplifies integration into existing designs and allows for easy programming by a microcontroller.

The DS3908N+T&R comes in a compact TSSOP-14 package, which is ideal for space-constrained applications. The device also features a wide operating temperature range, from -40°C to +85°C, ensuring reliable performance in diverse environments. Furthermore, the "T&R" designation indicates that this product is provided in tape and reel packaging, which is suitable for automated pick-and-place manufacturing processes, enhancing production efficiency.

In summary, the Maxim Integrated DS3908N+T&R digital potentiometer offers a combination of dual-channel configuration, nonvolatile memory, and an I²C interface, all within a small footprint. Its robust performance and ease of integration make it a preferred choice for engineers and designers looking to incorporate reliable, precise resistance adjustment capabilities into their electronic systems.