Texas Instruments ADS7263 Handleiding

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SARADC

CHA1P/CHA3

CHA1N/CHA2

CHA0P/CHA1

CHA0N/CHA0

CMA

Input

Mux

CHB1P/CHB3

CHB1N/CHB2

CHB0P/CHB1

CHB0N/CHB0

CMB

Input

Mux

Serial

Interface

and

FIFO

SARADC

REF1

REF2

AVDDDVDD

CLOCK

BUSY

SDI

SDOA

SDOB

Control

Logic

CONVST

AGNDDGNDRGND

2.5V

REF

String

DAC

String

DAC

REF2

REF1

REFIO1

REFIO2

Product

Folder

Order

Now

Technical

Documents

Tools &

Software

Support &

Community

AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,

intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.

ADS8363

ADS7263

ADS7223

SBAS523D–OCTOBER2010–REVISEDSEPTEMBER2017

ADSxxx3Dual,1-MSPS,16-,14-,and12-Bit,4×2or2×2Channel,SimultaneousSampling

Analog-to-DigitalConverter

1Features

•EightPseudo-orFourFully-DifferentialInputs

•SimultaneousSamplingofTwoChannels

•ExcellentACPerformance:

–SNR:

93dB(ADS8363)

85dB(ADS7263)

73dB(ADS7223)

–THD:

–98dB(ADS8363)

–92dB(ADS7263)

–86dB(ADS7223)

•DualProgrammableandBuffered2.5-V

ReferenceAllows:

–TwoDifferentInputVoltageRangeSettings

–Two-LevelPGAImplementation

•ProgrammableAuto-Sequencer

•IntegratedDataStorage(upto4perchannel)for

OversamplingApplications

•2-BitCounterforSafetyApplications

•FullySpecifiedOvertheExtendedIndustrial

TemperatureRange:–40°Cto+125°C

2Applications

•MotorControl:CurrentandPositionMeasurement

includingSafetyApplications

•PowerQualityMeasurement

•Three-PhasePowerControl

•ProgrammableLogicControllers

•IndustrialAutomation

•ProtectionRelays

3Description

TheADS8363isadual,16-bit,1-MSPSanalog-to-

digitalconverter(ADC)witheightpseudo-orfour

fully-differentialinputchannelsgroupedintotwopairs

forsimultaneoussignalacquisition.Theanaloginputs

aremaintaineddifferentiallytotheinputoftheADC.

Theinputmultiplexercanbeusedineitherpseudo-

differentialmode,supportinguptofourchannelsper

ADC(4x2),orinfully-differentialmodethatallowsto

convertuptotwoinputsperADC(2x2).The

ADS7263isa14-bitversionandtheADS7223isa

12-bitversionoftheADS8363.

TheADS8363,ADS7263,andADS7223offertwo

programmablereferenceoutputs,flexiblesupply

voltageranges,aprogrammableauto-sequencer,

datastorageofuptofourconversionresultsper

channel,andseveralpower-downfeatures.

Alldevicesareofferedina5-mmx5-mm,32-pin

VQFNpackage.

DeviceInformation

(1)

PARTNUMBERPACKAGEBODYSIZE(NOM)

ADSxxx3VQFN(32)5.00mmx5.00mm

(1)Forallavailablepackages,seethepackageoptionaddendum

attheendofthedatasheet.

FunctionalBlockDiagram

ADS8363

ADS7263

ADS7223

SBAS523D–OCTOBER2010–REVISEDSEPTEMBER2017

www.ti.com

ProductFolderLinks:ADS8363ADS7263ADS7223

TableofContents

1Features..................................................................1

2Applications...........................................................1

3Description.............................................................1

4RevisionHistory.....................................................2

5DeviceComparisonTable.....................................4

6PinConfigurationandFunctions.........................4

7Specifications.........................................................6

7.1AbsoluteMaximumRatings......................................6

7.2ESDRatings..............................................................6

7.3RecommendedOperatingConditions.......................6

7.4ThermalInformation..................................................6

7.5ElectricalCharacteristics:General............................7

7.6ElectricalCharacteristics:ADS8363.........................9

7.7ElectricalCharacteristics:ADS7263.........................9

7.8ElectricalCharacteristics:ADS7223.......................10

7.9SwitchingCharacteristics........................................11

7.10TypicalCharacteristics..........................................14

8DetailedDescription............................................18

8.1Overview.................................................................18

8.2FunctionalBlockDiagram.......................................18

8.3FeatureDescription.................................................19

8.4DeviceFunctionalModes........................................24

8.5Programming...........................................................26

8.6RegisterMaps.........................................................34

9ApplicationandImplementation........................42

9.1ApplicationInformation............................................42

10PowerSupplyRecommendations.....................45

11Layout...................................................................46

11.1LayoutGuidelines.................................................46

11.2LayoutExample....................................................47

12DeviceandDocumentationSupport.................48

12.1DocumentationSupport........................................48

12.2RelatedLinks........................................................48

12.3ReceivingNotificationofDocumentationUpdates48

12.4CommunityResources..........................................48

12.5Trademarks...........................................................48

12.6ElectrostaticDischargeCaution............................48

12.7Glossary................................................................48

13Mechanical,Packaging,andOrderable

Information...........................................................49

4RevisionHistory

ChangesfromRevisionC(January2017)toRevisionDPage

•Changedoperatingtemperaturefrom85°Cto125°CinRecommendedOperatingConditionstable...................................6

ChangesfromRevisionB(January2011)toRevisionCPage

•AddedDeviceInformationtable,ESDRatingstable,RecommendedOperatingConditionstable,Feature

Descriptionsection,DeviceFunctionalModessection,ApplicationandImplementationsection,PowerSupply

Recommendationssection,Layoutsection,DeviceandDocumentationSupportsection,andMechanical,

Packaging,andOrderableInformationsection......................................................................................................................1

•ChangedADS8363/7263/7223toADS8363,ADS7263,andADS7223throughoutdocument.............................................1

•ChangedDescriptionsection:changedlastsentenceoffirstparagraphandlastparagraph...............................................1

•ChangedDeviceComparisonTabletitle................................................................................................................................4

•ChangedPinConfigurationandFunctionssectiontitle..........................................................................................................4

•ChangedfootnoteofFigure1andforclarity........................................................................................................................12

•ChangedsecondandthirdcolumnsofMidscale–1LSBrowinOutputDataFormattable:changed–V

REF

to–2V

REF

incolumn2,changedlasttwovoltagevaluesincolumn3..................................................................................................26

•ChangedfootnoteofFigure31............................................................................................................................................27

•ChangedfootnoteofFigure32............................................................................................................................................28

•ChangedfootnoteofFigure33............................................................................................................................................29

•ChangedfootnoteofFigure34............................................................................................................................................30

•ChangedfootnoteofFigure35............................................................................................................................................31

•ChangedfootnoteofFigure36............................................................................................................................................32

•ChangedfootnoteofFigure38............................................................................................................................................34

•ChangedfootnoteofFigure40............................................................................................................................................36

•Changed1FFhto3FFhinbits9-0descriptionofREFDAC1ControlRegisterandREFDAC2ControlRegister................37

ADS8363

ADS7263

ADS7223

www.ti.com

SBAS523D–OCTOBER2010–REVISEDSEPTEMBER2017

ProductFolderLinks:ADS8363ADS7263ADS7223

ChangesfromRevisionA(December,2010)toRevisionBPage

•Revisedtestconditionsforgainerrorparameter...................................................................................................................9

•Revisedtestconditionsforgainerrorparameter.................................................................................................................10

•UpdatedCONVSThightimespecification............................................................................................................................11

•RevisedCONVSTsection....................................................................................................................................................20

•RevisedModeIIsection.......................................................................................................................................................28

•RevisedSpecialReadModeIIsection.................................................................................................................................29

•RevisedFully-DifferentialModeIVsection...........................................................................................................................31

•RevisedSpecialModeIVsection.........................................................................................................................................32

•AddedCONVSTsectioninADS8361Compatibility.............................................................................................................43

ChangesfromOriginal(October,2010)toRevisionAPage

•AddedRDhightime(t

)parametertoTimingCharacteristicstable....................................................................................11

•UpdatedFigure1..................................................................................................................................................................12

•RevisedRDsectioninADS8361Compatibility....................................................................................................................43

•Addedt

timingtracetoFigure48........................................................................................................................................45

•DeletedFour-WireApplicationTimingRequirementstable.................................................................................................45

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Merk:	Texas Instruments
Categorie:	Niet gecategoriseerd
Model:	ADS7263

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