SAR

OutputLatches

and

3-State

Drivers

Comparator

ADS8322

S/HAmp

BYTE

Parallel

Data

Output

+IN

-IN

CDAC

REF

IN

Conversion

andControl

Logic

Internal

+2.5VRef

CONVST

CLOCK

CS

RD

BUSY

REF

OUT

ADS8322

www.ti.com

SBAS215A – JULY 2001 – REVISED JANUARY 2010

16-Bit, 500kHz, MicroPower Sampling

ANALOG-TO-DIGITAL CONVERTER

Check for Samples: ADS8322

1

FEATURES

DESCRIPTION

2

•

HIGH-SPEED PARALLEL INTERFACE

•

500kHz SAMPLING RATE

The ADS8322 is a 16-bit, 500kHz analog-to-digital

(A/D) converter with an internal 2.5V reference. The

•

LOW POWER: 85mW at 500kHz

device includes a 16-bit capacitor-based successive

•

INTERNAL 2.5V REFERENCE

approximation register (SAR) A/D converter with

•

UNIPOLAR INPUT RANGE

inherent sample-and-hold. The ADS8322 offers a full

16-bit interface, or an 8-bit option where data are

•

TQFP-32 PACKAGE

read using two read cycles and eight pins. The

ADS8322 is available in a TQFP-32 package and is

APPLICATIONS

ensured

over

the

industrial

–40°C

to

+85°C

•

CT SCANNERS

temperature range.

•

HIGH-SPEED DATA ACQUISITION

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•

TEST AND INSTRUMENTATION

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•

MEDICAL EQUIPMENT

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1

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.

2

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2001–2010, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.