ACPL-796J 数据手册

ACPL-796JOpticallyIsolatedSigma-DeltaModulatorDataSheetCAUTION:Itisadvisedthatnormalstaticprecautionsbetakeninhandlingandassemblyofthiscomponenttopreventdamageand/ordegradationwhichmaybeinducedbyESD.DescriptionTheACPL-796Jisa1-bit,second-ordersigma-delta()modulatorconvertsananaloginputsignalintoahigh-speeddatastreamwithgalvanicisolationbasedonopticalcouplingtechnology.TheACPL-796Joperatesfroma5Vpowersupplywithdynamicrangeof80dBwithanappro-priatedigitalfilter.Thedifferentialinputsof±200mV(fullscale±320mV)areidealfordirectconnectiontoshuntresistorsorotherlow-levelsignalsourcesinapplicationssuchasmotorphasecurrentmeasurement.Theanaloginputiscontinuouslysampledbymeansofsigma-deltaover-samplingusingexternalclock,coupledacrosstheisolationbarrier,whichallowssynchronousoperationwithanydigitalcontroller.Thesignalinfor-mationiscontainedinthemodulatordata,asadensityofoneswithdatarateupto20MHz,andthedataareencodedandtransmittedacrosstheisolationboundarywheretheyarerecoveredanddecodedintohigh-speeddatastreamofdigitalonesandzeros.Theoriginalsignalinformationcanbereconstructedwithadigitalfilter.Theserialinterfacehasawidesupplyrangeof3Vto5.5V.Combinedwithsuperioropticalcouplingtechnology,themodulatordelivershighnoisemarginsandexcellentimmunityagainstisolation-modetransients.With0.5mmminimumdistancethroughinsulation(DTI),theACPL-796Jprovidesreliabledoubleprotectionandhighworkinginsulationvoltage,whichissuitableforfail-safedesigns.Thisoutstandingisolationperformanceissuperiortoalternativesincludingdevicesbasedoncapacitive-ormagnetic-couplingwithDTIinmicro-meterrange.OfferedinanSO-16package,theisolatedADCdeliversthereli-ability,smallsize,superiorisolationandover-temperatureperformancemotordrivedesignersneedtoaccuratelymeasurecurrentatmuchlowerpricecomparedtotradi-tionalcurrenttransducers.Theinternalclockversionmodulators,HCPL-7860(DIP-8/gullwingsurfacemountpackage)andHCPL-786J(SO-16package),arealsoavailable.Features5MHzto20MHzexternalclockinputrange1-bit,second-ordersigma-deltamodulator16bitsresolutionnomissingcodes(12bitsENOB)74dBminimumSNR3.5V/°Cmaximumoffsetdrift±1%maximumgainerrorInternalreferencevoltage±200mVlinearrangewithsingle5Vsupply3Vto5.5Vwidesupplyrangefordigitalinterface–40°Cto+105°CoperatingtemperaturerangeSO-16package25kV/scommon-modetransientimmunitySafetyandregulatoryapproval(pending):IEC/EN/DINEN60747-5-5:1230VpeakworkinginsulationvoltageUL1577:5000Vrms/1mindoubleprotectionratingCSA:ComponentAcceptanceNotice#5ApplicationsMotorphaseandrailcurrentsensingPowerinvertercurrentandvoltagesensingIndustrialprocesscontrolDataacquisitionsystemsGeneralpurposecurrentandvoltagesensingTraditionalcurrenttransducerreplacementsFunctionalBlockDiagramFigure1.Σ−ΔMODULATOR/ENCODERVINSHIELDVINBUFVREFLEDDRIVERCLOCKDETECTORSHIELDDECODERLEDDRIVERMCLKINMDATVDD2GND2GND1VDD1ACPL-796J+−2PinConfigurationandDescriptionsVDD112345678161514131211109VIN+VIN–GND1NCNCVDD1GND1GND2NCVDD2MCLKINNCMDATNCGND2ACPL-796JFigure2.Pinconfiguration.Table1.Pindescriptions.PinNo.SymbolDescription1,7VDD1Supplyvoltageforsignalinputside(analogside),relativetoGND12VIN+Positiveanaloginput,recommendedinputrange±200mV3VIN–Negativeanaloginput,recommendedinputrange±200mV(normallyconnectedtoGND1)4,8GND1Supplygroundforsignalinputside5,6,10,12,15NCNoconnection.Leavefloating9,16GND2Supplygroundfordataoutputside(digitalside)11MDATModulatordataoutput13MCLKINModulatorclockinput,5MHzto20MHz14VDD2Supplyvoltagefordataoutputside,relativetoGND2Table2.OrderingInformationACPL-796JisULrecognizedwith5000Vrms/1minuteratingperUL1577(pending).PartnumberOption(RoHSCompliant)PackageSurfaceMountTape&ReelIEC/EN/DINEN60747-5-5QuantityACPL-796J-000ESO-16X45pertube-060EXX45pertube-500EXX850perreel-560EXXX850perreelToorder,chooseapartnumberfromthepartnumbercolumnandcombinewiththedesiredoptionfromtheoptioncolumntoformanorderentry.Example:ACPL-796J-560EtoorderproductofSurfaceMountpackageinTapeandReelpackagingwithIEC/EN/DINEN60747-5-5SafetyApprovalandRoHScompliance.Optiondatasheetsareavailable.ContactyourAvagosalesrepresentativeorauthorizeddistributorforinformation.3PackageOutlineDrawings16-LeadSurfaceMount(SO-16)97.493±0.254(0.295±0.010)10111213141516876543210.457(0.018)3.505±0.127(0.138±0.005)9°10.312±0.254(0.406±0.10)10.160±0.254(0.408±0.010)0.025MIN.0.203±0.076(0.008±0.003)STANDOFF8.986±0.254(0.345±0.010)0-8°0.457(0.018)1.270(0.050)ALLLEADSTOBECOPLANAR±0.002A796JYYWWTYPENUMBERDATECODE11.63(0.458)2.16(0.085)0.64(0.025)LANDPATTERNRECOMMENDATIONDimensionsinmillimetersand(inches).Note:Floatingleadprotrusionis0.15mm(6mils)max.Note:Initialandcontinuedvariationincolorofthewhitemoldcompoundisnormalanddoesnotaffectperformanceorreliabilityofthedevice.Figure3.16-LeadSurfaceMount.RecommendedPb-FreeIRProfileRecommendedreflowconditionasperJEDECStandard,J-STD-020(latestrevision).Non-HalideFluxshouldbeused.RegulatoryInformationTheACPL-796Jispendingforapprovalsbythefollowingorganizations:CSAApprovalunderCSAComponentAcceptanceNotice#5,FileCA88324.IEC/EN/DINEN60747-5-5ApprovedwithMaximumWo