Texas Instruments ADC101C021 Bedienungsanleitung

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ADC101C021,ADC101C027

www.ti.com

SNAS446D–FEBRUARY2008–REVISEDFEBRUARY2013

ADC101C021/ADC101C027I

2

C-Compatible,10-BitAnalog-to-DigitalConverter(ADC)with

AlertFunction

CheckforSamples:ADC101C021,ADC101C027

1

FEATURES

DESCRIPTION

TheADC101C021isalow-power,monolithic,10-bit,

23

•I

2

C-Compatible2-wireInterfacewhich

analog-to-digitalconverter(ADC)thatoperatesfroma

supportsstandard(100kHz),fast(400kHz),and

+2.7to5.5Vsupply.Theconverterisbasedona

highspeed(3.4MHz)modes

successiveapproximationregisterarchitecturewith

•Extendedpowersupplyrange(+2.7Vto+5.5V)

aninternaltrack-and-holdcircuitthatcanhandleinput

frequenciesupto11MHz.TheADC101C021

•Uptoninepin-selectablechipaddresses

operatesfromasinglesupplywhichalsoservesas

(VSSOP-8only)

thereference.ThedevicefeaturesanI

2

C-compatible

•Out-of-rangeAlertFunction

serialinterfacethatoperatesinallthreespeed

•AutomaticPower-downmodewhilenot

modes,includinghighspeedmode(3.4MHz).

converting

TheADC'sAlertfeatureprovidesaninterruptthatis

•VerysmallSOT-6andVSSOP-8packages

activatedwhentheanaloginputviolatesa

•±8kVHBMESDprotection(SDA,SCL)

programmableupperorlowerlimitvalue.Thedevice

featuresanautomaticconversionmode,whichfrees

upthecontrollerandI

2

Cinterface.Inthismode,the

APPLICATIONS

ADCcontinuouslymonitorstheanaloginputforan

•SystemMonitoring

"out-of-range"conditionandprovidesaninterruptif

•PeakDetection

themeasuredvoltagegoesout-of-range.

•PortableInstruments

TheADC101C021comesintwopackages:asmall

•MedicalInstruments

SOT-6packagewithanalertoutput,andanVSSOP-

8packagewithanalertoutputandtwoaddress

•TestEquipment

selectioninputs.TheADC101C027comesinasmall

SOT-6packagewithanaddressselectioninput.The

KEYSPECIFICATIONS

ADC101C027providesthreepin-selectable

•Resolution10bits;nomissingcodes

addresseswhiletheVSSOP-8versionofthe

ADC101C021providesninepin-selectable

•ConversionTime1µs(typ)

addresses.Pin-compatiblealternativestotheSOT-6

•INL&DNL±0.5LSB(max)

optionsareavailablewithadditionaladdressoptions.

•ThroughputRate188.9kSPS(max)

Normalpowerconsumptionusinga+3Vor+5V

•PowerConsumption(at22kSPS)

supplyis0.26mWor0.78mW,respectively.The

–3VSupply0.26mW(typ)

automaticpower-downfeaturereducesthepower

consumptiontolessthan1µWwhilenotconverting.

–5VSupply0.78mW(typ)

Operationovertheindustrialtemperaturerangeof

−40°Cto+105°Cisguaranteed.Theirlowpower

consumptionandsmallpackagesmakethisfamilyof

ADCsanexcellentchoiceforuseinbatteryoperated

equipment.

TheADC101C021andADC101C027arepartofa

familyofpin-compatibleADCsthatalsoprovide12

and8bitresolution.For12-bitADCsseethe

ADC121C021andADC121C027.For8-bitADCssee

theADC081C021andADC081C027.

1

Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsof

TexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.

2I

2

CisaregisteredtrademarkofPhillipsCorporation.

3Allothertrademarksarethepropertyoftheirrespectiveowners.

PRODUCTIONDATAinformationiscurrentasofpublicationdate.

Copyright©2008–2013,TexasInstrumentsIncorporated

ProductsconformtospecificationsperthetermsoftheTexas

Instrumentsstandardwarranty.Productionprocessingdoesnot

necessarilyincludetestingofallparameters.

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