OTP537F2-E

1/8IntroductionTheOTP-537F2isathermopilesensorinclassicTO-5housing.Thesensoriscomposedof116elementsofthermocoupleinseriesonafloatingmicro-membranehavinganactivediameterof545μmandwithblackensurfacetoabsorbtheincidentthermalinfraredradiation,whichinducesavoltageresponseatoutputterminals.Thesensorchipisfabricatedbyauniquefront-surfacebulkmicromachiningtechnology,whichresultinsmallersizeandfastertoresponseambienttemperaturechange.TheIRwindowisabandpassfilterhavingcut-onwavelengthat5μm,andcut-downat14μm.ThesensorresponsesproportionallytotheincidentIRradiationandhasaconstantsignalresponseuptoitscut-offfrequency,whichislimitedbythesensorthermaltimeconstantoftensmillisecondrange.TheOTP-537F2thermopilesensorprovidesnearlyJohnson-noise-limitedperformance,whichcanbecalculatedbyitsohmicseriesresistance.Athermistorelement,withaleadconnectedtoground,isalsoprovidedinsidetheTOpackageforambienttemperaturereference.FeaturesNon-contacttemperaturedetectionVoltageoutput,easytotakesignalZeropowerconsumptionWidedetectiontemperaturerangeApplicationsMedicalApplication:EarthermometersHomeFacility:Microwaveoven,Hairdryer,Safetysystem,Homesecurity&AirconditionerIndustryApplication:Processmonitorandcontroller,Infrarednon-contactthermometersAutomobileApplication:Thermalsensingsystem2/8TableofContents1GeneralCharacteristics1.1AbsoluteMaximumRatings1.2HandlingGuidelines2DeviceCharacteristics2.1DeviceDescriptions2.2SensorCharacteristics2.3SignalOutputCharacteristics2.4FrequencyResponse2.5ThermistorCharacteristics2.6OpticalCharacteristics2.7FilterCharacteristics2.8MechanicDrawingandPinAssignment3LiabilityStatementListofFiguresFigure1:Typicaloutputvoltageversusobjecttemperaturewithsensorat25°CFigure2:FrequencyresponseFigure3:FieldofviewcurveFigure4:TypicalspectraltransmittancecurveFigure5:MechanicaldrawingandpinassignmentListofTablesTable1:AbsolutemaximumratingsTable2:DevicecharacteristicsTable3:ThermopilesensorcharacteristicsTable4:TypicalnumericaldataofThermopile’soutputvoltage(sensorat25°C)Table5:ThermistorinformationTable6:TabulatedthermistordataTable7:OpticalcharacteristicsTable8:Filterparameters3/81.GeneralCharacteristics1.1AbsoluteMaximumRatingTable1:AbsolutemaximumratingParameterMin.Typ.Max.UnitAmbientOperatingTemperature-20100℃StorageTemperature-40100℃1.2HandlingGuidelinesStressesabovetheabsolutemaximumratingsmaycausedamagestothedevice.DonotexposethesensortoaggressivedetergentssuchasFreon,Trichloroethylene,etc.Avoidtouchingorcleaningofthewindow.Ifnecessary,docleaningonlyverycarefullywithalcoholandcottonswab.Handsolderingandwavesolderingmaybeappliedbyamaximumtemperatureof260°Cforadwelltimelessthan10s.Reflowsolderingisnotrecommended.2.DeviceCharacteristics2.1DeviceDescriptionsThematerialsofOTP-537F2arelead-freeandfullycompliedwiththeRoHSregulations.Table2:DevicecharacteristicsParameterDescriptionCapMetalcapwithintegratedIRwindowHeaderTO5Leads(3isolated+1ground)pinswithsolderablegoldcoatingFilterSi-basedIRfilterInsulationgassealingThesensorissealedhermeticallyinanitrogenenvironment.2.2SensorCharacteristicsTable3:ThermopilesensorcharacteristicsParameterMinTypMaxUnitConditionsOutputVoltage0.484---0.867mVTamb.=25℃Tobj.=50℃Sensitivity7085100V/W*TCofsensitivity---0.11---%/KTypicalSensitivityareaindiameter---545---μmInterferencelayerResistanceofthermopile506580KΩ25℃TCofresistance---0.09---%/KTypicalTimeconstant---16---ms*Noisevoltage283236nV/Hz1/2NEP0.280.360.48nW/Hz1/2Normalizeddetectivity(D*)1.0*1081.3*1081.7*108cm*Hz1/2/W*Notes:*Allopticalperformancesaremeasuredat1Hzchopperfrequencyusingablackbodyradiatorof500Ktemperaturewithfilteredspectrumrangingfrom5to14μm.Distancebetweenpackagedthermopileandblackbodyis11cm.4/82.3SignalOutputCharacteristics-1.00-0.500.000.501.001.502.002.50-30-20-100102030405060708090100110120130ObjectTemperature[℃]ThermopileSignal[mV]Figure1:Typicaloutputvoltageversusobjecttemperaturewithsensorat25°C.Table4:TypicalnumericaldataofThermopile’soutputvoltage(sensorat25°C)Temp.(℃)V_out(mV)Temp.(℃)V_out(mV)-20-0.52500.43-10-0.43600.630-0.33700.8510-0.21801.0820-0.07901.33250.001001.59300.081101.87400.251202.17Note:Blackbodysourcesize:250x250mmDistancefromsensortosource:110mm5/82.4FrequencyResponseFigure2:Frequencyresponse2.5ThermistorCharacteristicsTable5:ThermistorinformationParameterMinTypMaxUnitConditionsResistance29.130.030.9KΩ25℃βvalue377338113849K0℃/50℃Table6:TabulatedthermistordataResistance(KΩ)Resistance(KΩ)Temp.(oC)MinCenterMax.Temp.(oC)MinCenterMax.-20285.7271.2256.74513.7913.2812.77-15216.6206.2195.85011.4110.9710.53-10165.5158.0150.5559.4919.1088.725-5127.6122.1116.6607.9327.5997.266098.9794.9890.99656.6566.3666.076577.3774.4371.49705.6115.3585.1051060.9158.7456.57754.7524.5304.3081548.2946.6845.07804.0373.8433.6492038.4937.2936.09853.4433.2733.1032530.9030.0029.10902.9492.7992.6493025.0524.2723.49952.5342.4022.2703520.4219.7419.061002.1812.0641.9474016.7416.1515.561051.8911.7881.6856/82.6OpticalCharacteristicsTable7:OpticalcharacteristicsParameterMinTypMaxUnitConditionsFieldofview46degreeAt50%targetsignalFigure