Texas Instruments ADS7841-Q1 Handleiding

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CDAC

SAR

Comparator

Four

Channel

Multiplexer

Serial

Interface

and

Control

CH0

CH1

CH2

CH3

COM

V

REF

CS

SHDN

DIN

DOUT

MODE

BUSY

DCLK

CH2

CH1

CH0

V

CC

SHDN

COM

CH3

V

REF

BUSY

DIN

CS

DCLK

GND

MODE

DOUT

V

CC

DBQ PACKAGE

(TOPVIEW)

4

3

2

1

7

6

5

8

13

14

15

16

10

11

12

9

ADS7841-Q1

www.ti.com

SBAS469C–MARCH2009–REVISEDOCTOBER2012

12-BIT4-CHANNELSERIAL-OUTPUTSAMPLINGANALOG-TO-DIGITALCONVERTER

CheckforSamples:ADS7841-Q1

1

FEATURES

•QualifiedforAutomotiveApplications

•SingleSupply:2.7VTo5V

•Four-ChannelSingle-EndedOrTwo-Channel

DifferentialInput

•UpTo200-kHzConversionRate

•±2LSBMaxINLandDNL

•NoMissingCodes

•71-dBTypSINAD

•SerialInterface

•AlternateSourceForMAX1247

DESCRIPTION

TheADS7841isa4-channel12-bitsamplinganalog-to-digitalconverter(ADC)withasynchronousserial

interface.Theresolutionisprogrammabletoeither8bitsor12bits.Typicalpowerdissipationis2mWata200-

kHzthroughputrateanda5-Vsupply.Thereferencevoltage(V

REF

)canbevariedbetween100mVandV

CC

,

providingacorrespondinginputvoltagerangeof0VtoV

REF

.Thedeviceincludesashutdownmodethatreduces

powerdissipationtounder15μW.TheADS7841isspecifieddownto2.7-Voperation.

Lowpower,highspeed,andon-boardmultiplexermaketheADS7841idealforbattery-operatedsystems.The

serialinterfacealsoprovideslow-costisolationforremotedataacquisition.TheADS7841isavailableinaSSOP-

16package.

1

Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsof

TexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.

PRODUCTIONDATAinformationiscurrentasofpublicationdate.

Copyright©2009–2012,TexasInstrumentsIncorporated

ProductsconformtospecificationsperthetermsoftheTexas

Instrumentsstandardwarranty.Productionprocessingdoesnot

necessarilyincludetestingofallparameters.

Product specificaties