XTR115_datasheet

XTR115XTR1164-20mACURRENTLOOPTRANSMITTERSFEATURESLOWQUIESCENTCURRENT:200µA5VREGULATORFOREXTERNALCIRCUITSVREFFORSENSOREXCITATION:XTR115:2.5VXTR116:4.096VLOWSPANERROR:0.05%LOWNONLINEARITYERROR:0.003%WIDELOOPSUPPLYRANGE:7.5Vto36VSO-8PACKAGEAPPLICATIONS2-WIRE,4-20mACURRENTLOOPTRANSMITTERSMARTTRANSMITTERINDUSTRIALPROCESSCONTROLTESTSYSTEMSCOMPATIBLEWITHHARTMODEMCURRENTAMPLIFIERVOLTAGE-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.XTR115XTR116RINIINVIN+–IRETXTR115XTR116+5VRegulatorR225ΩRLIMEBV+R12.475kΩIO=100VINRINA1VoltageReference+5VVREGVREF23815476XTR115:2.5VXTR116:4.096VRLVLOOPI=100•IINSBOS124A–JANUARY2000–REVISEDNOVEMBER2003©2000-2003,TexasInstrumentsIncorporatedPleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.Alltrademarksarethepropertyoftheirrespectiveowners.XTR115,XTR1162SBOS124A✻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/WXTR115,XTR1163SBOS124A(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-8PINCONFIGURATIONPACKAGE/ORDERINGINFORMATIONVREFIINIRETIOVREGV+B(Base)E(Emitter)12348765ELECTROSTATICDISCHARGESENSITIVITYThisintegratedcircuitcanbedamagedbyESD.TexasInstru-mentsrecommendsthatallintegratedcircuitsbehandledwithappropriateprecautions.Failuretoobserveproperhandlingandinstallationprocedurescancausedamage.ESDdamagecanrangefromsubtleperformancedegrada-tiontocompletedevicefailure.Precisionintegratedcircuitsmaybemoresusceptibletodamagebecauseverysmallparametricchangescouldcausethedevicenottomeetitspublishedspecifications.Forthemostcurrentpackageandorderinginformation,seethePackageOptionAddendumlocatedattheendofthisdatasheet.XTR115,XTR1164SBOS124A=+25°C,V+=24V,RIN=20kΩ,andTIP29C