REV. A

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a

250 MSPS Video

Digital-to-Analog Converter

AD9701

FUNCTIONAL BLOCK DIAGRAM

GENERAL DESCRIPTION

The AD9701 is a high speed, 8-bit digital-to-analog converter

with fully integrated composite video functions. High speed

ECL input registers provide synchronous operation of data and

control functions up to 250 MSPS.

The AD9701 incorporates onboard control functions including

horizontal sync, blanking, reference white level and a 10%

bright signal for highlighting. The setup level is also adjustable

from 0 IRE units to 20 IRE units through the control pin. An

internal voltage reference allows the AD9701 to operate as a

stand-alone video reconstruction DAC.

The AD9701 is available as an industrial temperature range

device, –25

°C to +85°C, and as an extended temperature range

device, –55

°C to +125°C. Both grades of the AD9701 are pack-

aged in a 22-pin ceramic DIP with the extended temperature

device also available in a 28-pin LCC package.

PIN CONFIGURATIONS

FEATURES

250 MSPS Update Rate

Low Glitch Impulse

Complete Composite Functions

Internal Voltage Reference

Single –5.2 V Supply

APPLICATIONS

Raster Scan Displays

Color Graphics

Automated Test Equipment

TV Video Reconstruction

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106,

U.S.A.

Tel: 617/329-4700

World Wide Web Site: http://www.analog.com

Fax: 617/326-8703

© Analog Devices, Inc., 1996