Texas Instruments ADS828 Handleiding

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A

D

S

8

2

8

10-Bit, 75MHz Sampling

ANALOG-TO-DIGITAL CONVERTER

FEATURES

●HIGH SNR: 58dB

●LOW POWER: 325mW

●+3V/+5V LOGIC I/O COMPATIBLE

●INTERNAL/EXTERNAL REFERENCE OPTION

●SINGLE-ENDED OR DIFFERENTIAL ANALOG

INPUT

●PROGRAMMABLE INPUT RANGE:

1Vp-p or 2Vp-p

●LOW DNL: 0.4LSB

●SINGLE +5V SUPPLY OPERATION

●POWER DOWN: 20mW

●SSOP-28 PACKAGE

APPLICATIONS

●HDTV VIDEO DIGITIZING

●MEDICAL IMAGING

●COMMUNICATIONS

●TEST EQUIPMENT

DESCRIPTION

The ADS828 is a pipeline, CMOS analog-to-digital con-

verter that operates from a single +5V power supply. This

converter provides excellent performance with a single-

ended input and can be operated with a differential input for

added spurious performance. This high performance con-

verter includes a 10-bit quantizer, high bandwidth track/

hold, and a high accuracy internal reference. It also allows

for the user to disable the internal reference and utilize

external references. This external reference option provides

excellent gain and offset matching when used in multi-

channel applications or in applications where full scale

range adjustment is required.

The ADS828 employs digital error correction techniques to

provide excellent differential linearity for demanding im-

aging applications. Its low distortion and high SNR give the

extra margin needed for medical imaging, communications,

video, and test instrumentation. The ADS828 offers power

dissipation of 325mW and also provides a power-down

mode, thus reducing power dissipation to only 20mW.

The ADS828 is specified at a maximum sampling frequency

of 75MHz and a single-ended input range of 1.5V to 3.5V.

The ADS828 is available in a SSOP-28 package and is pin

compatible with the 10-bit, 40MHz ADS822 and ADS825,

and the 10-bit, 60MHz ADS823 and ADS826.

TM

10-Bit

Pipelined

A/D Core

Internal

Reference

Optional External

Reference

Timing

Circuitry

Error

Correction

Logic

3-State

Outputs

T/H

CLKVDRV

ADS828

+V

S

OEPDInt/Ext

D0

D9

•

•

•

INV

IN

IN

CM

ADS828

SBAS126A – MARCH 2001

www.ti.com

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

Copyright © 2001, Texas Instruments Incorporated

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

Product specificaties