RCV420中文资料

®RCV4201RCV420Precision4mAto20mACURRENTLOOPRECEIVERAPPLICATIONSlPROCESSCONTROLlINDUSTRIALCONTROLlFACTORYAUTOMATIONlDATAACQUISITIONlSCADAlRTUslESDlMACHINEMONITORINGFEATURESlCOMPLETE4-20mATO0-5VCONVERSIONlINTERNALSENSERESISTORSlPRECISION10VREFERENCElBUILT-INLEVEL-SHIFTINGl±40VCOMMON-MODEINPUTRANGEl0.1%OVERALLCONVERSIONACCURACYlHIGHNOISEIMMUNITY:86dBCMRtransmittercompliancevoltageisatapremium.The10Vreferenceprovidesaprecise10Voutputwithatypicaldriftof5ppm/°C.TheRCV420iscompletelyself-containedandoffersahighlyversatilefunction.Noadjustmentsareneededforgain,offset,orCMR.Thisprovidesthreeimportantadvantagesoverdiscrete,board-leveldesigns:1)lowerinitialdesigncost,2)lowermanufacturingcost,and3)easy,cost-effectivefieldrepairofaprecisioncircuit.DESCRIPTIONTheRCV420isaprecisioncurrent-loopreceiverde-signedtoconverta4–20mAinputsignalintoa0–5Voutputsignal.Asamonolithiccircuit,itoffershighreliabilityatlowcost.Thecircuitconsistsofapre-miumgradeoperationalamplifier,anon-chipprecisionresistornetwork,andaprecision10Vreference.TheRCV420features0.1%overallconversionaccuracy,86dBCMR,and±40Vcommon-modeinputrange.Thecircuitintroducesonlya1.5Vdropatfullscale,whichisusefulinloopscontainingextrainstrumentburdensorinintrinsicallysafeapplicationswhere®RS75ΩRS75Ω123–In16412V+V–RefInCT+In100kΩRCV4201.01kΩ99kΩ11.5kΩ300kΩ300kΩ+10VRef1514111087RcvfBRcvOutRefOutReffBRefTrimRefNoiseReduction135RcvComRefCom92kΩInternationalAirportIndustrialPark•MailingAddress:POBox11400,Tucson,AZ85734•StreetAddress:6730S.TucsonBlvd.,Tucson,AZ85706•Tel:[phone]•Twx:910-952-1111Internet:•FAXLine:[phone](US/CanadaOnly)•Cable:BBRCORP•Telex:066-6491•FAX:[phone]•ImmediateProductInfo:[phone]RCV420©1988Burr-BrownCorporationPDS-837EPrintedinU.S.A.October,19972®RCV420SPECIFICATIONSELECTRICALAtT=+25°CandVS=±15V,unlessotherwisenoted.RCV420KP,JPCHARACTERISTICSMINTYPMAXUNITSGAINInitial0.3125V/mAError0.050.15%ofspanError—JPGrade0.25%ofspanvsTemp15ppm/°CNonlinearity(1)0.00020.002%ofspanOUTPUTRatedVoltage(IO=+10mA,–5mA)1012VRatedCurrent(EO=10V)+10,–5mAImpedance(Differential)0.01ΩCurrentLimit(ToCommon)+49,–13mACapacitiveLoad1000pF(StableOperation)INPUTSenseResistance74.257575.75ΩInputImpedance(Common-Mode)200kΩCommon-ModeVoltage±40VCMR(2)7080dBvsTemp(DC)(TA=TMINtoTMAX)76dBAC60Hz80dBOFFSETVOLTAGE(RTO)(3)Initial1mVvsTemp10μV/°CvsSupply(±11.4Vto±18V)7490dBvsTime200μV/moZEROERROR(4)Initial0.0250.075%ofspanInitial—JPGrade0.15%ofspanvsTemp10ppmofspan/°COUTPUTNOISEVOLTAGEfB=0.1Hzto10Hz50μVp-pfO=10kHz800nV/√HzDYNAMICRESPONSEGainBandwidth150kHzFullPowerBandwidth30kHzSlewRate1.5V/μsSettlingTime(0.01%)10μsVOLTAGEREFERENCEInitial9.9910.01VTrimRange(5)±4%vsTemp5ppm/°CvsSupply(±11.4Vto±18V)0.0002%/VvsOutputCurrent(IO=0to+10mA)0.0002%/mAvsTime15ppm/kHzNoise(0.1Hzto10Hz)5μVp-pOutputCurrent+10,–2mAPOWERSUPPLYRated±15VVoltageRange(6)–5,+11.4±18VQuiescentCurrent(VO=0V)34mATEMPERATURERANGESpecification0+70°COperation–25+85°CStorage–40+85°CThermalResistance,θJA80°C/WNOTES:(1)Nonlinearityisthemaxpeakdeviationfrombestfitstraightline.(2)With0sourceimpedanceonRcvCompin.(3)ReferredtooutputwithallinputsgroundedincludingRefIn.(4)With4mAinputsignalandVoltageReferenceconnected(includesVOS,GainError,andVoltageReferenceErrors).(5)Externaltrimslightlyaffectsdrift.(6)IORef=5mA,IORcv=2mA.®RCV4203Supply...............................................................................................±22VInputCurrent,Continuous................................................................40mAInputCurrentMomentary,0.1s...........................250mA,1%DutyCycleCommon-ModeInputVoltage,Continuous.......................................±40VLeadTemperature(soldering,10s)...............................................+300°COutputShortCircuittoCommon(RcvandRef).....................ContinuousNOTE:(1)Stressesabovetheseratingsmaycausepermanentdamage.ABSOLUTEMAXIMUMRATINGS(1)V+RcvfRcvOutRcvComRefInRefOutReffNC–InC+InV–RefComNCRefNoiseReductionRefTrim12345678161514131211109TBBPINCONFIGURATIONORDERINGINFORMATIONPERFORMANCEPRODUCTGRADEPACKAGERCV420KP0°Cto+70°C16-PinPlasticDIPRCV420JP0°Cto+70°C16-PinPlasticDIPTopViewDIPTheinformationprovidedhereinisbelievedtobereliable;however,BURR-BROWNassumesnoresponsibilityforinaccuraciesoromissions.BURR-BROWNassumesnoresponsibilityfortheuseofthisinformation,andalluseofsuchinformationshallbeentirelyattheuser’sownrisk.Pricesandspecificationsaresubjecttochangewithoutnotice.Nopatentrightsorlicensestoanyofthecircuitsdescribedhereinareimpliedorgrantedtoanythirdparty.BURR-BROWNdoesnotauthorizeorwarrantanyBURR-BROWNproductforuseinlifesupportdevicesand/orsystems.PACKAGEINFORMATIONPACKAGEDRAWINGPRODUCTPACKAGENUMBER(1)RCV420KP16-PinPlasticDIP180RCV420JP16-PinPlasticDIP180NOTE:(1)Fordetaileddrawinganddimensiontable,pleaseseeendofdatasheet,orAppendixCofBurr-BrownICDataBook.4®RCV420TYPICALPERFORMANCECURVESAtTA=+25°C,VS=±15V,unlessotherwisenoted.STEPRESPONSENOLOADSMALLSIGNALRESPONSERL=∞,CL=1000pFSMALLSIGNALRESPONSENOLOADPOSITIVECOMMON-MODEVOLTAGERANGEvsPOSITI