DESCRIPTION

The DS1803 addressable dual digital potentiometer features two independently controlled 256-position

potentiometers. Device control is achieved through a 2-wire serial interface. Three address pins allow up to 8 DS1803’s to share the same 2-wire interface. The exact wiper position of each potentiometer can be written or read. The DS1803 is available in a 16-pin DIP, 16-pin SO, and 14-pin TSSOP package. The device is available in three standard resistance values: 10kΩ, 50kΩ, and 100kΩand is specified over the industrial temperature range.

FEATURES

ƒ  3V or 5V Operation

ƒ  Ultra-Low Power Consumption

ƒ  Two Digitally Controlled, 256-Position Potentiometers

ƒ  14-Pin TSSOP (173 mil)and 16-Pin SO (150mil) Packaging Available for Surface-Mount Applications

ƒ  Addressable Using 3 Address Inputs

ƒ  2-Wire Serial Interface

ƒ  Operating Temperature Range:

    -  Industrial: -40°C to +85°C

ƒ  Standard Resistance Values:

    - DS1803-010  10kΩ

    - DS1803-050  50kΩ

    - DS1803-100  100kΩ