ADC0832英文手册

ADC0831,ADC0832,ADC0834,ADC0838ADC0831/ADC0832/ADC0834/ADC08388-BitSerialI/OA/DConverterswithMultiplexerOptionsLiteratureNumber:SNAS531AADC0831/ADC0832/ADC0834/ADC08388-BitSerialI/OA/DConverterswithMultiplexerOptionsGeneralDescriptionTheADC0831seriesare8-bitsuccessiveapproximationA/DconverterswithaserialI/Oandconfigurableinputmultiplex-erswithupto8channels.TheserialI/OisconfiguredtocomplywiththeNSCMICROWIRE™serialdataexchangestandardforeasyinterfacetotheCOPS™familyofproces-sors,andcaninterfacewithstandardshiftregistersorµPs.The2-,4-or8-channelmultiplexersaresoftwareconfiguredforsingle-endedordifferentialinputsaswellaschannelassignment.Thedifferentialanalogvoltageinputallowsincreasingthecommon-moderejectionandoffsettingtheanalogzeroinputvoltagevalue.Inaddition,thevoltagereferenceinputcanbeadjustedtoallowencodinganysmalleranalogvoltagespantothefull8bitsofresolution.FeaturesnNSCMICROWIREcompatible—directinterfacetoCOPSfamilyprocessorsnEasyinterfacetoallmicroprocessors,oroperates“stand-alone”nOperatesratiometricallyorwith5VDCvoltagereferencenNozeroorfull-scaleadjustrequiredn2-,4-or8-channelmultiplexeroptionswithaddresslogicnShuntregulatorallowsoperationwithhighvoltagesuppliesn0Vto5Vinputrangewithsingle5VpowersupplynRemoteoperationwithserialdigitaldatalinknTTL/MOSinput/outputcompatiblen0.3standardwidth,8-,14-or20-pinDIPpackagen20PinMoldedChipCarrierPackage(ADC0838only)nSurface-MountPackageKeySpecificationsnResolution8BitsnTotalUnadjustedError±1⁄2LSBand±1LSBnSingleSupply5VDCnLowPower15mWnConversionTime32µsTypicalApplication00558301TRI-STATE®isaregisteredtrademarkofNationalSemiconductorCorporation.COPS™andMICROWIRE™aretrademarksofNationalSemiconductorCorporation.July2002ADC0831/ADC0832/ADC0834/ADC08388-BitSerialI/OA/DConverterswithMultiplexerOptions©2002NationalSemiconductorCorporationDS005583(WMandN)00558308TopViewADC08344-ChannelMUXSmallOutline/Dual-In-LinePackage(WMandN)00558330COMinternallyconnectedtoAGNDTopViewTopViewADC08322-ChannelMUXDual-In-LinePackage(N)00558331COMinternallyconnectedtoGND.VREFinternallyconnectedtoVCC.TopViewTopViewADC08322-ChannelMUXSmallOutlinePackage(WM)00558341TopViewADC0831SingleDifferentialInputDual-In-LinePackage(N)00558332TopViewADC0831SingleDifferentialInputSmallOutlinePackage(WM)00558342TopViewADC08388-ChannelMUXMoldedChipCarrier(PCC)Package(V)00558333ADC0831/ADC0832/ADC0834/ADC0838±1Molded(N)0˚Cto+70˚CADC0831CCWMSO(M)0˚Cto+70˚CADC0832CIWM2±1SO(M)−40˚Cto+85˚CADC0832CCNMolded(N)0˚Cto+70˚CADC0832CCWMSO(M)0˚Cto+70˚CADC0834BCN4±1⁄2Molded(N)0˚Cto+70˚CADC0834CCN±1Molded(N)0˚Cto+70˚CADC0834CCWMSO(M)0˚Cto+70˚CADC0838BCV8±1⁄2PCC(V)0˚Cto+70˚CADC0838CCV±1PCC(V)0˚Cto+70˚CADC0838CCNMolded(N)0˚Cto+70˚CADC0838CIWMSO(M)−40˚Cto+85˚CADC0838CCWMSO(M)0˚Cto+70˚CSeeNSPackageNumberM14B,M20B,N08E,N14A,N20AorV20AADC0831/ADC0832/ADC0834/ADC0838(Notes1,2)IfMilitary/Aerospacespecifieddevicesarerequired,pleasecontacttheNationalSemiconductorSalesOffice/Distributorsforavailabilityandspecifications.CurrentintoV+(Note3)15mASupplyVoltage,VCC(Note3)6.5VVoltageLogicInputs−0.3VtoVCC+0.3VAnalogInputs−0.3VtoVCC+0.3VInputCurrentperPin(Note4)±5mAPackage±20mAStorageTemperature−65˚Cto+150˚CPackageDissipationatTA=25˚C(BoardMount)0.8WLeadTemperature(Soldering10sec.)Dual-In-LinePackage(Plastic)260˚CMoldedChipCarrierPackageVaporPhase(60sec.)215˚CInfrared(15sec.)220˚CESDSusceptibility(Note5)2000VOperatingRatings(Notes1,2)SupplyVoltage,VCC4.5VDCto6.3VDCTemperatureRangeTMIN≤TA≤TMAXADC0832/8CIWM−40˚Cto+85˚CADC0834BCN,ADC0838BCV,ADC0831/2/4/8CCN,ADC0838CCV,ADC0831/2/4/8CCWM0˚Cto+70˚CConverterandMultiplexerElectricalCharacteristicsThefollowingspecificationsapplyforVCC=V+=VREF=5V,VREF≤VCC+0.1V,TA=Tj=25˚C,andfCLK=250kHzunlessotherwisespecified.BoldfacelimitsapplyfromTMINtoTMAX.ParameterConditionsCIWMDevicesBCV,CCV,CCWM,BCNandCCNDevicesTypTestedDesignTypTestedDesignUnits(Note12)LimitLimit(Note12)LimitLimit(Note13)(Note14)(Note13)(Note14)CONVERTERANDMULTIPLEXERCHARACTERISTICSTotalUnadjustedErrorVREF=5.00VADC0838BCV(Note6)±1⁄2±1⁄2ADC0834BCN±1⁄2±1⁄2LSB(Max)ADC0838CCV±1±1ADC0831/2/4/8CCN±1±1ADC0831/2/4/8CCWM±1±1ADC0832/8CIWM±1MinimumReference3.51.33.51.31.3kΩInputResistance(Note7)MaximumReference3.55.93.55.45.9kΩInputResistance(Note7)MaximumCommon-ModeInputRange(Note8)VCC+0.05VCC+0.05VCC+0.05VMinimumCommon-ModeInputRange(Note8)GND−0.05GND−0.05GND−0.05VDCCommon-ModeError±1/16±1⁄4±1/16±1⁄4±1⁄4LSBChangeinzero15mAintoV+errorfromVCC=5VVCC=N.C.tointernalzenerVREF=5Voperation(Note3)111LSBVZ,internalMIN15mAintoV+6.36.36.3diodebreakdownMAX8.58.58.5V(atV+)(Note3)ADC0831/ADC0832/ADC0834/ADC0838=V+=VREF=5V,VREF≤VCC+0.1V,TA=Tj=25˚C,andfCLK=250kHzunlessotherwisespecified.BoldfacelimitsapplyfromTMINtoTMAX.(Continue