DESCRIPTIONThe AD5290 is one of the few high voltage, high performance, and compact digital potentiometers2, 3 in the market at present. This device can be used as a programmable resistor or resistor divider. The AD5290 performs the same electronic adjustment function as mechanical potentiometers, variable resistors, and trimmers, with enhanced resolution, solid-state reliability, and superior temperature stability. With digital rather than manual control, the AD5290 provides layout flexibility and allows closed-loop dynamic controllability. The AD5290 is available in MSOP-10 package and has 10 k , 50 k , and 100 k options. All parts are guaranteed to operate over the 40 C to +125 C extended automotive temperature range. 1 iCMOS Process Technology. For analog systems designers who need high performance ICs at higher voltage levels, iCMOS is a technology platform that enables the development of analog ICs capable of 30 V and operating at 15 V supplies while allowing dramatic reductions FEATURES 256 position 10 k , 50 k , 100 k +4.5 V to +30 V single-supply operation 4.5 V to 15 V dual-supply operation 3-wire SPI-compatible serial interface Low temperature coefficient 35 ppm/oC typical THD 0.006% typical Midscale preset Compact MSOP-10 package Automotive temperature range: 40oC to +125oC iCMOS 1process technology APPLICATIONS High voltage DAC Programmable power supply Programmable gain and offset adjustment Programmable filters and delays Actuator control Audio volume control Mechanical potentiometer replacement FUNCTIONAL BLOCK DIAGRAM VDDAWBVSSSDICLKCSSDODGNDPOR88RS8-BITLATCH8-BITSERIALREGISTERQDCK04716-001 Figure 1. GENERAL DESCRIPTIONThe AD5290 is one of the few high voltage, high performance, and compact digital potentiometers2, 3 in the market at present. This device can be used as a programmable resistor or resistor divider. The AD5290 performs the same electronic adjustment function as mechanical potentiometers, variable resistors, and trimmers, with enhanced Specifications .3 Electrical Characteristics