AD9049BR Analog Devices, AD9049BR Datasheet

AD9049BR

Manufacturer Part Number

AD9049BR

Description

9-Bit/ 30 MSPS ADC

Manufacturer

Analog Devices

Datasheet

1.AD9049BR.pdf (12 pages)

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REV. A

Information furnished by Analog Devices is believed to be accurate and

reliable. However, no responsibility is assumed by Analog Devices for its

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

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

PRODUCT DESCRIPTION

The AD9049 is a complete 9-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 30 MSPS sample rates with 9-bit resolution.

The encode clock is TTL compatible and the digital outputs

are CMOS; both can operate with 5 V/3 V logic, selected by the

user. The two-step architecture used in the AD9049 is opti-

mized 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 an advanced BiCMOS process,

the AD9049 is packaged in space saving surface mount pack-

ages (SOIC, SSOP) and is specified over the industrial

(–40 C to +85 C) temperature range.

FEATURES

Low Power: 300 mW

On-Chip T/H, Reference

Single +5 V Power Supply Operation

Selectable 5 V or 3 V Logic I/O

Wide Dynamic Performance

APPLICATIONS

Digital Communications

Professional Video

Medical Imaging

Instrumentation

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

Tel: 617/329-4700

Fax: 617/326-8703

ENCODE

(+3.3V

AINB

AIN

ENCODE

0.512V)

FUNCTIONAL BLOCK DIAGRAM

+5V

AIN

+5V

Figure 1. Typical Connections

TIMING

0.1µF

+5V

AD9049

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

9-Bit, 30 MSPS ADC

T/H

SUM

AMP

GND

AD9049

REFERENCE CKTS

1, 7, 12,

2, 8, 11,

21, 23

20, 22

+5V

ADC

DAC

9 BITS

AD9049

DECODE

LOGIC

74AC574

(2)

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