Texas Instruments - ADS7818 Data Sheet

ADS7818 ADS7818

For most current data sheet and other product information, visit www.burr-brown.com

12-Bit High Speed Low Power Sampling ANALOG-TO-DIGITAL CONVERTER

FEATURES DESCRIPTION 500k Hz THROUGHPUT RATE The ADS7818 is a 12-bit sampling analog-to-digital

converter (A/D) complete with sample/hold, internal

2.5V INTERNAL REFERENCE

2.5V reference, and synchronous serial interface. Typi-

LOW POWER: 11m W

cal power dissipation is 11m W at a 500k Hz through-

SINGLE SUPPLY +5V OPERATION

put rate. The device can be placed into a power down

DIFFERENTIAL INPUT mode which reduces dissipation to just 2.5m W. The

input range is zero to two times the reference voltage,

SERIAL INTERFACE

and the internal reference can be overdriven by an

GUARANTEED NO MISSING CODES

external voltage.

MINI-DIP-8 AND MSOP-8

Low power, small size, and high-speed make the

UNIPOLAR INPUT RANGE

ADS7818 ideal for battery operated systems such as wireless communication devices, portable multi-chan- APPLICATIONS nel data loggers, and spectrum analyzers. The serial interface also provides low-cost isolation for remote

BATTERY OPERATED SYSTEMS

data acquisition. The ADS7818 is available in a plas-

DIGITAL SIGNAL PROCESSING tic mini-DIP-8 or an MSOP-8 package and is guaran-

teed over the –40°C to +85°C temperature range.

HIGH SPEED DATA ACQUISITION WIRELESS COMMUNICATION SYSTEMS

CDAC Serial –In Interface DATA

Comparator S/H Amp

Buffer Internal +2.5V Ref

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

©1998 Burr-Brown Corporation ADS7818

PDS- 408B Printed in U.S.A. May, 2000

SBAS078