DS1803

The DS1803 Addressable Dual Digital Potentiometer is an addressable device having two independently controlled potentiometers. Each potentiometer's wiper can be set to one of 256 positions. Device control is achieved via a 2-wire serial interface having a data I/O terminal and a clock input terminal. Device addressing is provided through three chip select input terminals and correct communication protocol.

Addressing capability, when operating in a bus topology, allows up to eight devices to be controlled by the serial interface. The exact wiper position of each potentiometer can be written or read. The DS1803 is available in a 16-pin DIP, 16-pin SOIC and 14-pin TSSOP package. The device is available in three standard resistance values: 10kW, 50kW, and 100kW, and is specified over the industrial temperature range.