ADS1286

DESCRIPTION

The ADS1286 is a 12-bit, 20kHz analog-to-digital

converter with a differential input and sample and hold

amplifier and consumes only 250

µA of supply cur-

rent. The ADS1286 offers an SPI and SSI compatible

serial interface for communications over a two or three

wire interface. The combination of a serial two wire

interface and micropower consumption makes the

ADS1286 ideal for remote applications and for those

requiring isolation.

The ADS1286 is available in a 8-pin plastic mini DIP

and a 8-lead SOIC.

12-Bit Micro Power Sampling

ANALOG-TO-DIGITAL CONVERTER

®

FEATURES

q SERIAL INTERFACE

q GUARANTEED NO MISSING CODES

q 20kHz SAMPLING RATE

q LOW SUPPLY CURRENT: 250

µA

SAR

Control

Serial

Interface

D

OUT

Comparator

S/H Amp

CS/SHDN

DCLOCK

+In

V

REF

–In

CDAC

ADS1286

ADS1286

APPLICATIONS

q REMOTE DATA ACQUISITION

q ISOLATED DATA ACQUISITION

q TRANSDUCER INTERFACE

q BATTERY OPERATED SYSTEMS

PDS-1335B

Printed in U.S.A. October, 1998

International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111

Twx: 910-952-1111 • Internet: http://www.burr-brown.com/ • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132

SBAS053