XTR115UA中文资料

1®XTR115,XTR116©2000Burr-BrownCorporationPDS-1582APrintedinU.S.A.January,2000XTR115XTR1164-20mACURRENTLOOPTRANSMITTERS®FEATURESlLOWQUIESCENTCURRENT:200μAl5VREGULATORFOREXTERNALCIRCUITSlVREFFORSENSOREXCITATION:XTR115:2.5VXTR116:4.096VlLOWSPANERROR:0.05%lLOWNONLINEARITYERROR:0.003%lWIDELOOPSUPPLYRANGE:7.5Vto36VlSO-8PACKAGEAPPLICATIONSl2-WIRE,4-20mACURRENTLOOPTRANSMITTERlSMARTTRANSMITTERlINDUSTRIALPROCESSCONTROLlTESTSYSTEMSlCOMPATIBLEWITHHARTMODEMlCURRENTAMPLIFIERlVOLTAGE-TO-CURRENTAMPLIFIERDESCRIPTIONTheXTR115andXTR116areprecisioncurrentout-putconvertersdesignedtotransmitanalog4-to-20mAsignalsoveranindustrystandardcurrentloop.Theyprovideaccuratecurrentscalingandoutputcurrentlimitfunctions.Theon-chipvoltageregulator(5V)canbeusedtopowerexternalcircuitry.Aprecisionon-chipVREF(2.5VforXTR115and4.096VforXTR116)canbeusedforoffsettingortoexcitetransducers.Acurrentreturnpin(IRET)sensesanycurrentusedinexternalcircuitrytoassureanaccuratecontroloftheoutputcurrent.TheXTR115isafundamentalbuildingblockofsmartsensorsusing4-to-20mAcurrenttransmission.TheXTR115andXTR116arespecifiedforopera-tionovertheextendedindustrialtemperaturerange,–40°Cto+85°C.XTR115XTR116InternationalAirportIndustrialPark•MailingAddress:POBox11400,Tucson,AZ85734•StreetAddress:6730S.TucsonBlvd.,Tucson,AZ85706•Tel:[phone]Twx:910-952-1111•Internet:•Cable:BBRCORP•Telex:066-6491•FAX:[phone]•ImmediateProductInfo:[phone]Formostcurrentdatasheetandotherproductinformation,visit–IRETXTR115XTR116+5VRegulatorR225ΩRLIMEBV+R12.475kΩIO=100VINRINA1VoltageReference+5VVREGVREF23815476XTR115:2.5VXTR116:4.096VRLVLOOPI=100•IIN2®XTR115,XTR116[SpecificationsthesameasXTR115UandXTR116U.NOTES:(1)DoesnotincludeinitialerrororTCRofRIN.(2)VoltagemeasuredwithrespecttoIRETpin.SPECIFICATIONSAtTA=+25°C,V+=24V,RIN=20kΩ,andTIP29Cexternaltransistor,unlessotherwisenoted.XTR115UXTR115UAXTR116UXTR116UAPARAMETERCONDITIONSMINTYPMAXMINTYPMAXUNITSOUTPUTOutputCurrentEquationIOIO=IIN•100[OutputCurrent,LinearRange0.2525[[mAOver-ScaleLimitILIM32[mAUnder-ScaleLimitIMINIREG=0,IREF=00.20.25[[mASPANSpan(CurrentGain)S100[A/AError(1)IIN=250μAto25mA±0.05±0.2[±0.4%vsTemperatureTA=–40°Cto+85°C±3±20[[ppm/°CNonlinearityIIN=250μAto25mA±0.003±0.01[±0.02%INPUTOffsetVoltage(OpAmp)VOSIIN=40μA±100±250[±500μVvsTemperatureTA=–40°Cto+85°C±0.7±3[±6μV/°CvsSupplyVoltage,V+V+=7.5Vto36V±0.1±2[[μV/VBiasCurrentIB–35[nAvsTemperature150[pA/°CNoise:0.1Hzto10Hzen0.6[μVp-pDYNAMICRESPONSESmallSignalBandwidthCLOOP=0,RL=0380[kHzSlewRate3.2[mA/μsVREF(2)XTR1152.5[VXTR1164.096[VVoltageAccuracyIREF=0±0.05±0.25[±0.5%vsTemperatureTA=–40°Cto+85°C±20±35[±75ppm/°CvsSupplyVoltage,V+V+=7.5Vto36V±1±10[[ppm/VvsLoadIREF=0mAto2.5mA±100[ppm/mANoise:0.1Hzto10Hz10[μVp-pShort-CircuitCurrent16[mAVREG(2)Voltage5[VVoltageAccuracyIREG=0±0.05±0.1[[VvsTemperatureTA=–40°Cto+85°C±0.1[mV/°CvsSupplyVoltage,V+V+=7.5Vto36V1[mV/VvsOutputCurrentSeeTypicalCurvesShort-CircuitCurrent12[mAPOWERSUPPLYV+Specified+24[VVoltageRange+7.5+36[[VQuiescentCurrent200250[[μAOverTemperature,–40°Cto+85°C240300[[μATEMPERATURERANGESpecification–40+85[[°COperating–55+125[[°CStorage–55+125[[°CThermalResistanceθJA150[°C/W3®XTR115,XTR116PowerSupply,V+(referencedtoIOpin)..........................................40VInputVoltage(referencedtoIRETpin)........................................0VtoV+OutputCurrentLimit...............................................................ContinuousVREG,Short-Circuit..................................................................ContinuousVREF,Short-Circuit..................................................................ContinuousOperatingTemperature................................................–55°Cto+125°CStorageTemperatureRange.......................................–55°Cto+125°CLeadTemperature(soldering,10s)..............................................+300°CJunctionTemperature...................................................................+165°CNOTE:(1)Stressesabovetheseratingsmaycausepermanentdamage.Exposuretoabsolutemaximumconditionsforextendedperiodsmaydegradedevicereliability.ABSOLUTEMAXIMUMRATINGS(1)TopViewSO-8PINCONFIGURATIONELECTROSTATICDISCHARGESENSITIVITYThisintegratedcircuitcanbedamagedbyESD.Burr-Brownrecommendsthatallintegratedcircuitsbehandledwithappropriateprecautions.Failuretoobserveproperhandlingandinstallationprocedurescancausedamage.ESDdamagecanrangefromsubtleperformancedegradationtocompletedevicefailure.Precisionintegratedcircuitsmaybemoresusceptibletodamagebecauseverysmallparametricchangescouldcausethedevicenottomeetitspublishedspecifications.PACKAGE/ORDERINGINFORMATIONTheinformationprovidedhereinisbelievedtobereliable;however,BURR-BROWNassumesnoresponsibilityforinaccuraciesoromissions.BURR-BROWNassumesnoresponsibilityfortheuseofthisinformation,andalluseofsuchinformationshallbeentirelyattheuser’sownrisk.Pricesandspecificationsaresubjecttochangewithoutnotice.Nopatentrightsorlicensestoanyofthecircuitsdescribedhereinareimpliedorgrantedtoanythirdparty.BURR-BROWNdoe