AD7683BRMZ中文资料

16-Bit,100kSPS,Single-EndedPulSARADCinMSOP/QFNAD7683Rev.AInformationfurnishedbyAnalogDevicesisbelievedtobeaccurateandreliable.However,noresponsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorotherrightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.NolicenseisgrantedbyimplicationorotherwiseunderanypatentorpatentrightsofAnalogDevices.Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.OneTechnologyWay,P.O.Box9106,Norwood,MA02062-9106,U.S.A.Tel:[phone]©2004–2008AnalogDevices,Inc.Allrightsreserved.FEATURES16-bitresolutionwithnomissingcodesThroughput:100kSPSINL:±1LSBtypical,±3LSBmaximumPseudodifferentialanaloginputrange0VtoVREFwithVREFuptoVDDSingle-supplyoperation:2.7Vto5.5VSerialinterfaceSPI/QSPI/MICROWIRE/DSPcompatiblePowerdissipation:4mW@5V,1.5mW@2.7V,150μW@2.7V/10kSPSStandbycurrent:1nA8-leadpackages:MSOP3mm×3mmQFN(LFCSP)(SOT-23size)ImprovedsecondsourcetoADS8320andADS8325APPLICATIONSBattery-poweredequipmentDataacquisitionInstrumentationMedicalinstrumentsProcesscontrolAPPLICATIONDIAGRAMAD7683REFGNDVDD+IN–INDCLOCKDOUTCS3-WIRESPIINTERFACE0.5VTOVDD2.7VTO5.5V0VTOVREF04301-001Figure1.Table1.MSOP,QFN(LFCSP)/SOT-23,14-/16-/18-BitPulSARADCType100kSPS250kSPS400kSPSto500kSPS≥1000kSPSADCDriver18-BitTrueDifferentialAD7691AD7690AD7982AD7984ADA4941ADA484116-BitTrueDifferentialAD7684AD7687AD7688AD7693ADA4941ADA484116-BitPseudoDifferentialAD7680AD7683AD7685AD7694AD7686AD7980ADA484114-BitPseudoDifferentialAD7940AD7942AD7946ADA4841GENERALDESCRIPTIONTheAD7683isa16-bit,chargeredistribution,successiveapproximation,PulSAR®analog-to-digitalconverter(ADC)thatoperatesfromasinglepowersupply,VDD,between2.7Vand5.5V.Itcontainsalowpower,highspeed,16-bitsamplingADCwithnomissingcodes(Bgrade),aninternalconversionclock,andaserial,SPI-compatibleinterfaceport.Thepartalsocontainsalownoise,widebandwidth,shortaperturedelay,track-and-holdcircuit.OntheCSfallingedge,itsamplesananaloginput,+IN,between0VtoREFwithrespecttoagroundsense,–IN.Thereferencevoltage,REF,isappliedexternallyandcanbesetuptothesupplyvoltage.Itspowerscaleslinearlywiththroughput.TheAD7683ishousedinan8-leadMSOPoran8-leadQFN(LFCSP)package,withanoperatingtemperaturespecifiedfrom−40°Cto+85°C.AD7683Rev.A|Page2of16TABLEOFCONTENTSFeatures..............................................................................................1 Applications.......................................................................................1 ApplicationDiagram........................................................................1 GeneralDescription.........................................................................1 RevisionHistory...............................................................................2 Specifications.....................................................................................3 TimingSpecifications..................................................................5 AbsoluteMaximumRatings............................................................6 ThermalResistance......................................................................6 ESDCaution..................................................................................6 PinConfigurationandFunctionDescriptions.............................7 Terminology......................................................................................8 TypicalPerformanceCharacteristics.............................................9 ApplicationsInformation...............................................................12 CircuitInformation....................................................................12 ConverterOperation..................................................................12 TransferFunctions.....................................................................12 TypicalConnectionDiagram...................................................13 AnalogInput...............................................................................13 DriverAmplifierChoice...........................................................13 VoltageReferenceInput............................................................14 PowerSupply...............................................................................14 DigitalInterface..........................................................................14 Layout..........................................................................................14 EvaluatingtheAD7683Performance......................................14 OutlineDimensions.......................................................................15 OrderingGuide..........................................................................16 REVISIONHISTORY2/08—Rev.0toRev.AChangetoTitle..................................................................................1MovedFigure3,Figure4,andFigure5.........................................5ChangestoFigure4................................................................