**AD5263BRUZ50: A Comprehensive Guide to the 256-Position Digital Potentiometer**

The AD5263BRUZ50 from Analog Devices represents a significant advancement in digital potentiometer technology, offering engineers a high-resolution, digitally controlled variable resistor for a wide array of applications. This device effectively replaces mechanical potentiometers and trim pots, providing enhanced reliability, programmability, and precision in a compact package.

As a **256-position digital potentiometer**, the AD5263BRUZ50 provides fine granularity for adjusting resistance values. The nominal end-to-end resistance is **50 kΩ**, making it suitable for various signal conditioning and level-setting tasks. Its operation is straightforward: it functions as a three-terminal variable resistor, with the position of the wiper determined by the value stored in its internal volatile memory. The wiper position is programmed via a versatile **SPI-compatible serial interface**, which allows for easy integration with most microcontrollers and digital systems.

A key feature of the AD5263BRUZ50 is its **non-volatile memory (EEPROM)**. Unlike many digital pots that lose their setting upon power-down, this device can store a user-defined wiper position in its EEPROM. Upon power-up, it automatically recalls this saved value, ensuring the system starts with the correct configuration every time. This feature is invaluable in applications requiring a precise, pre-set state after cycling power.

The device operates from a **single supply of 5 V or a dual supply of ±2.5 V**, offering flexibility for both single-supply and bipolar applications. This, combined with its wide bandwidth and low power consumption, makes it an excellent choice for audio equipment, programmable gain amplifiers, and instrumentation controls where precise analog signal manipulation is critical.

Housed in a compact **TSSOP-24 package**, the AD5263BRUZ50 also includes four independent potentiometer channels in a single IC. This integration saves significant board space and simplifies design compared to using multiple discrete components. Each channel can be independently controlled, providing a compact solution for complex systems requiring multiple adjustments.

**ICGOOODFIND:** The AD5263BRUZ50 stands out as a robust and highly integrated solution for digital resistance control. Its combination of **256-position resolution, non-volatile memory, multi-channel capability, and a simple serial interface** makes it an superior alternative to mechanical potentiometers, enabling more reliable, precise, and automated designs in modern electronics.

**Keywords:** Digital Potentiometer, 256-Position, SPI Interface, Non-Volatile Memory, Programmable Gain Amplifier.