LM2901中文资料

Rev2July20051/1212LM2901LowPowerQuadVoltageComparator■Widesinglesupplyvoltagerangeordualsuppliesforalldevices:+2Vto+36Vor±1Vto±18V■Verylowsupplycurrent(1.1mA)independentofsupplyvoltage(1.4mW/comparatorat+5V)■Lowinputbiascurrent:25nAtyp.■Lowinputoffsetcurrent:±5nAtyp.■Inputcommon-modevoltagerangeincludesground■Lowoutputsaturationvoltage:250mVtyp.(IO=4mA)■Differentialinputvoltagerangeequaltothesupplyvoltage■TTL,DTL,ECL,MOS,CMOScompatibleoutputsDescriptionThisdeviceconsistsoffourindependentprecisionvoltagecomparators.Allthesecomparatorsweredesignedspecificallytooperatefromasinglesupplyoverawiderangeofvoltages.Operationfromsplitpowersuppliesisalsopossible.Thesecomparatorsalsohaveauniquecharacteristicinthattheinputcommon-modevoltagerangeincludesgroundeventhoughoperatedfromasinglepowersupplyvoltage.OrderCodesNDIP14(PlasticPackage)DSO-14(PlasticMicropackage)PTSSOP14(ThinShrinkSmallOutlinePackage)PartNumberTemperatureRangePackagePackagingMarkingLM2901N-40°C,+125°CDIP14TubeLM2901NLM2901D/LM2901DTSO-14TubeorTape&Reel2901LM2901PTTSSOP14(ThinShrinkOutlinePackage)Tape&Reel2901LM2901YD/YDTSO-14(automotivegradelevel)TubeorTape&Reel2901Y±18to36VVIDDifferentialInputVoltage±36VVIInputVoltage-0.3to+36VOutputShort-circuittoGround(1)1.Short-circuitfromtheoutputtoVcc+cancauseexcessiveheatingandeventualdestruction.Themaximumoutputcurrentisapproximately20mA,independentofthemagnitudeofVcc+PdPowerDissipation(2)DIP14SO-14TSSOP142.PdiscalculatedwithTamb=+25°C,Tj=+150°CandRthja=80°C/WforDIP14packageRthja=150°C/WforSO-14packageRthja=175°C/WforTSSOP14package1500830710mWTJJunctionTemperature+150°CTstgStorageTemperatureRange-65to+150°CESDHBM:HumanBodyModel(3)3.Humanbodymodel,100pFdischargedthrougha1.5kΩresistorintopinofdevice.1.5KvMM:MachineModel(4)4.MachinemodelESD,a200pFcapischargedtothespecifiedvoltage,thendischargeddirectlyintotheICwithnoexternalseriesresistor(internalresistor5Ω),intopintopinofdevice.100VCDM:ChargedDeviceModel1500VSymbolParameterValueUnitVCCSupplyVoltage2to32±1to±16VVicmCommonModeInputVoltageRange0to(VCC+-1.5)VToperOperatingFree-AirTemperaturerange-40to+125°CLM2901TypicalApplicationSchematics3/122TypicalApplicationSchematicsFigure1.Schematicdiagram(1/4LM2901)Figure2.Pinconnection(topview)
  

 
 
 ElectricalCharacteristicsLM29014/123ElectricalCharacteristicsTable3.VCC+=5V,Vcc-=GND,Tamb=25°C(unlessotherwisespecified)SymbolParameterMin.Typ.Max.UnitVioInputOffsetVoltage(1)Tamb=+25°CTmin≤Tamb≤Tmax.1.Atoutputswitchpoint,VO≈1.4V,RS=0withVCC+from5Vto30V,andoverthefullinputcommon-moderange(0VtoVCC+–1.5V).1715mVIioInputOffsetCurrentTamb=+25°CTmin≤Tamb≤Tmax.550150nAIibInputBiasCurrent(II+orII-)(2)Tamb=2.5VTmin≤Tamb≤Tmax.2.ThedirectionoftheinputcurrentisoutoftheICduetothePNPinputstage.Thiscurrentisessentiallyconstant,independentofthestateoftheoutput,sonoloadingchargeexistsonthereferenceofinputlines25250400nAAvdLargeSignalVoltageGain(Vcc=15V,RL=15kΩ,Vo=1to11V)25200V/mVIccSupplyCurrent(allcomparators))VCC=+5V,noloadVCC=+30V,noload1.11.322.5mAVicmInputCommonModeVoltageRange(Vcc=30V)(3)Tamb=+25°CTmin≤Tamb≤Tmax.3.Theinputcommon-modevoltageofeitherinputsignalvoltageshouldnotbeallowedtogonegativebymorethan0.3V.Theupperendofthecommon-modevoltagerangeisVCC+–1.5V,buteitherorbothinputscangoto+30Vwithoutdamage.00VCC+-1.5VCC+-2VVidDifferentialInputVoltage(4)4.Theresponsetimespecifiedisfora100mVinputstepwith5mVoverdrive.VCC+VVOLLowLevelOutputVoltageVid=-1V,Isink=4mATamb=+25°CTmin≤Tamb≤Tmax250400700mVIohHighLevelOutputCurrent(VCC=Vo=30V,Vid=1V)Tamb=+25°CTmin≤Tamb≤Tmax0.11nAµAIsinkOutputSinkCurrent(Vid=-1V,Vo=1.5V)616mAtreSmallSignalResponseTime(5)(RL=5.1kΩconnectedtoVCC+5.Positiveexcursionsofinputvoltagemayexceedthepowersupplylevel.Aslongastheothervoltageremainswithinthecommon-moderange,thecomparatorwillprovideaproperoutputstate.Thelowinputvoltagestatemustnotbelessthan–0.3V(or0.3Vbellowthenegativepowersupply,ifused)1.3µstrelLargeSignalResponseTime(6)TTLInput(Vref=+1.4V,RL=5.1kΩtoVCC+)OutputSignalat50%offinalvalueOutputSignalat95%offinalvalue6.Maximumvaluesareguaranteedbydesign.5001nsµsLM2901ElectricalCharacteristics5/12Figure3.SupplycurrentversussupplyvoltageFigure4.InputcurrentversussupplyvoltageFigure5.OutputsaturationvoltageversusoutputcurrentFigure6.Responsetimeforvariousinputoverdrives-negativetransitionFigure7.Responsetimeforvariousinputoverdrives-positivetransitionTypicalApplicationsLM29016/124TypicalApplicationsFigure8.BasiccomparatorFigure9.DrivingCMOSFigure10.DrivingTTLFigure11.Lowfrequencyop-ampFigure12.Lowfrequencyop-ampFigure13.TransduceramplifierLM2901TypicalApplications7/12Figure14.Lowfrequencyop-ampwithoffsetadjustFigure15.Zerocrossingdetector(singlepowersupply)Figure16.Limitcompar