Texas Instruments ADS7828 Handleiding

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12-Bit, 8-Channel Sampling

ANALOG-TO-DIGITAL CONVERTER

with I

2

C

™

Interface

FEATURES

●8-CHANNEL MULTIPLEXER

●50kHz SAMPLING RATE

●NO MISSING CODES

●2.7V TO 5V OPERATION

●INTERNAL 2.5V REFERENCE

●I

2

C INTERFACE SUPPORTS:

Standard, Fast, and High-Speed Modes

●TSSOP-16 PACKAGE

APPLICATIONS

●VOLTAGE-SUPPLY MONITORING

●ISOLATED DATA ACQUISITION

●TRANSDUCER INTERFACES

●BATTERY-OPERATED SYSTEMS

●REMOTE DATA ACQUISITION

DESCRIPTION

The ADS7828 is a single-supply, low-power, 12-bit data

acquisition device that features a serial I

2

C interface and an

8-channel multiplexer. The Analog-to-Digital (A/D) converter

features a sample-and-hold amplifier and internal,

asynchronous clock. The combination of an I

2

C serial,

2-wire interface and micropower consumption makes the

ADS7828 ideal for applications requiring the A/D converter to

be close to the input source in remote locations and for

applications requiring isolation. The ADS7828 is available in

a TSSOP-16 package.

ADS7828

SBAS181C – NOVEMBER 2001 - REVISED MARCH 2005

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 © 2001-2005, 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.

SAR

2.5V V

REF

Serial

Interface

SDA

Comparator

S/H Amp

REF

IN

/REF

OUT

SCL

CH0

CH1

CH2

CH3

CH4

CH5

CH6

CH7

COM

A0

A1

CDAC

8-Channel

MUX

Buffer

®

A

D

S7828

I

2

C is a trademark of Koninklijke Philps Electronics N.V. All other trademarks are the property of their respective owners.

Product specificaties