AD5254BRUZ1 (ANALOG DEVICES)

The AD5254BRUZ1 is a quad-channel non-volatile Digital Potentiometer performs the same electronic adjustment functions as mechanical potentiometers, trimmers and variable resistors. The parts versatile programmability allows multiple modes of operation, including read/write access in the RDAC and EEMEM registers, increment/decrement of resistance, resistance changes in ±6 dB scales, wiper setting readback and extra EEMEM for storing user-defined information, such as memory data for other components, look-up table or system identification information. The AD5254 allow the host I?C controllers to write any of the 256-step wiper settings in the RDAC registers and store them in the EEMEM. Once the settings are stored, they are restored automatically to the RDAC registers at system power-on; the settings can also be restored dynamically.