REV. A

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use, nor for any infringements of patents or other rights of third parties

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a

AD9051

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

Tel: 781/329-4700

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

Fax: 781/326-8703

© Analog Devices, Inc., 1998

10-Bit, 60 MSPS

A/D Converter

FUNCTIONAL BLOCK DIAGRAM

ENCODE

AD9051

T/H

SUM

AMP

DAC

ADC

+5V

DECODE

LOGIC

TIMING

AIN

AINB

+5V

GND

REFERENCE

CIRCUITS

10

BWSEL

ADC

IN

OUT

FEATURES

60 MSPS Sampling Rate

250 mW Total Power at 60 MSPS

Selectable Input Bandwidth of 50 MHz or 130 MHz

On-Chip T/H and Voltage Reference

Single +5 V Supply Voltage

+5 V or +3 V Logic I/O Compatible

Input Range and Output Coding Options Available

APPLICATIONS

Medical Imaging

Digital Communications

Professional Video

Instrumentation

Set-Top Box

GENERAL DESCRIPTION

The AD9051 is a complete 10-bit monolithic sampling analog-

to-digital converter (ADC) with an onboard track-and-hold and

reference. The unit is designed for low cost, high performance

applications and requires only +5 V and an encode clock to

achieve 60 MSPS sample rates with 10-bit resolution.

The encode clock is TTL compatible and the digital outputs are

CMOS; both can operate with +5 V/+3 V logic. The two-step

architecture used in the AD9051 is optimized to provide the

best dynamic performance available while maintaining low

power consumption.

A +2.5 V reference is included onboard, or the user can provide

an external reference voltage for gain control or matching of

multiple devices. Fabricated on a state-of-the-art BiCMOS

process, the AD9051 is packaged in a space saving surface

mount package (SSOP) and is specified over the industrial tem-

perature range (–40

°C to +85°C).