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