LMP7702中文资料

LMP7701/LMP7702/LMP7704Precision,CMOSInput,RRIO,WideSupplyRangeAmplifiersGeneralDescriptionTheLMP7701/LMP7702/LMP7704aresingle,dual,andquadlowoffsetvoltage,rail-to-railinputandoutputprecisionamplifierseachwithCMOSinputstageandwidesupplyvoltagerange.TheLMP7701/LMP7702/LMP7704arepartoftheLMP™precisionamplifierfamilyandareidealforsensorinterfaceandotherinstrumentationapplications.Theguaranteedlowoffsetvoltageoflessthan±200µValongwiththeguaranteedlowinputbiascurrentoflessthan±1pAmaketheLMP7701idealforprecisionapplications.TheLMP7701/LMP7702/LMP7704arebuiltutilizingVIP50technology,whichallowsthecombinationofaCMOSinputstageanda12Vcommonmodeandsupplyvoltagerange.ThismakestheLMP7701/LMP7702/LMP7704greatchoicesinmanyapplicationswhereconventionalCMOSpartscan-notoperateunderthedesiredvoltageconditions.TheLMP7701/LMP7702/LMP7704havearail-to-railinputstagethatsignificantlyreducestheCMRRglitchcommonlyassociatedwithrail-to-railinputamplifiers.Thisisachievedbytrimmingbothsidesofthecomplimentaryinputstage,therebyreducingthedifferencebetweentheNMOSandPMOSoffsets.TheoutputoftheLMP7701/LMP7702/LMP7704swingswithin40mVofeitherrailtomaximizethesignaldynamicrangeinapplicationsrequiringlowsupplyvoltage.TheLMP7701isofferedinthespacesaving5-PinSOT23package,theLMP7702isofferedinthe8-PinMSOP,andthequadLMP7704isofferedinthe14-PinTSSOPpackage.Thesesmallpackagesareidealsolutionsforareacon-strainedPCboardsandportableelectronics.FeaturesUnlessotherwisenoted,typicalvaluesatVS=5VnInputoffsetvoltage(LMP7701)±200µV(max)nInputoffsetvoltage(LMP7702/LMP7704)±220µV(max)nInputbiascurrent±200fAnInputvoltagenoise9nV/nCMRR130dBnOpenloopgain130dBnTemperaturerange−40˚Cto125˚CnUnitygainbandwidth2.5MHznSupplycurrent(LMP7701)715µAnSupplycurrent(LMP7702)1.5mAnSupplycurrent(LMP7704)2.9mAnSupplyvoltagerange2.7Vto12VnRail-to-railinputandoutputApplicationsnHighimpedancesensorinterfacenBatterypoweredinstrumentationnHighgainamplifiersnDACbuffernInstrumentationamplifiernActivefiltersTypicalApplication20127305PrecisionCurrentSourceLMP™isatrademarkofNationalSemiconductorCorporation.October2006LMP7701/LMP7702/LMP7704Precision,CMOSInput,RRIO,WideSupplyRangeAmplifiers©2006NationalSemiconductorCorporationDS201273(Note1)IfMilitary/Aerospacespecifieddevicesarerequired,pleasecontacttheNationalSemiconductorSalesOffice/Distributorsforavailabilityandspecifications.ESDTolerance(Note2)HumanBodyModel2000VMachineModel200VVINDifferential±300mVSupplyVoltage(VS=V+–V−)13.2VVoltageatInput/OutputPinsV++0.3V,V−−0.3VInputCurrent10mAStorageTemperatureRange−65˚Cto+150˚CJunctionTemperature(Note3)+150˚CSolderingInformationInfraredorConvection(20sec)235˚CWaveSolderingLeadTemp.(10sec)260˚COperatingRatings(Note1)TemperatureRange(Note3)−40˚Cto+125˚CSupplyVoltage(VS=V+–V−)2.7Vto12VPackageThermalResistance(θJA(Note3))5-PinSOT23265˚C/W8-PinMSOP235˚C/W14-PinTSSOP122˚C/W3VElectricalCharacteristics(Note4)Unlessotherwisespecified,alllimitsareguaranteedforTA=25˚C,V+=3V,V−=0V,VCM=V+/2,andRL10kΩtoV+/2.Boldfacelimitsapplyatthetemperatureextremes.SymbolParameterConditionsMin(Note6)Typ(Note5)Max(Note6)UnitsVOSInputOffsetVoltageLMP7701±37±200±500µVLMP7702/LMP7704±56±220±520TCVOSInputOffsetVoltageDrift(Note7)±1±5µV/˚CIBInputBiasCurrent(Notes7,8)−40˚C≤TA≤85˚C±0.2±1±50pA(Notes7,8)−40˚C≤TA≤125˚C±0.2±1±400IOSInputOffsetCurrent40fACMRRCommonModeRejectionRatio0V≤VCM≤3VLMP77018680130dB0V≤VCM≤3VLMP7702/LMP77048478130PSRRPowerSupplyRejectionRatio2.7V≤V+≤12V,Vo=V+/2868298dBCMVRInputCommon-ModeVoltageRangeCMRR≥80dBCMRR≥77dB–0.2–0.23.23.2VAVOLLargeSignalVoltageGainRL=2kΩ(LMP7701)VO=0.3Vto2.7V10096114dBRL=2kΩ(LMP7702/LMP7704)VO=0.3Vto2.7V10094114RL=10kΩVO=0.2Vto2.8V10096124LMP7701/LMP7702/LMP7704(Note4)(Continued)Unlessotherwisespecified,alllimitsareguaranteedforTA=25˚C,V+=3V,V−=0V,VCM=V+/2,andRL10kΩtoV+/2.Boldfacelimitsapplyatthetemperatureextremes.SymbolParameterConditionsMin(Note6)Typ(Note5)Max(Note6)UnitsVOOutputSwingHighRL=2kΩtoV+/2LMP77014080120mVfromV+RL=2kΩtoV+/2LMP7702/LMP77044080150RL=10kΩtoV+/2LMP7701304060RL=10kΩtoV+/2LMP7702/LMP77043550100OutputSwingLowRL=2kΩtoV+/2LMP7701406080mVRL=2kΩtoV+/2LMP7702/LMP770445100170RL=10kΩtoV+/2LMP7701204050RL=10kΩtoV+/2LMP7702/LMP7704205090IOOutputShortCircuitCurrent(Notes3,9)SourcingVO=V+/2VIN=100mV251542mASinkingVO=V+/2VIN=−100mV(LMP7701)252042SinkingVO=V+/2VIN=−100mV(LMP7702/LMP7704)251542ISSupplyCurrentLMP77010.6701.01.2mALMP77021.41.82.1LMP77042.93.54.5SRSlewRate(Note10)AV=+1,VO=2VPP10%to90%0.9V/µsGBWGainBandwidthProduct2.5MHzTHD+NTotalHarmonicDistortion+Noisef=1kHz,AV=1,R.L=10kΩ0.02%enInput-ReferredVoltageNoisef=1kHz9nV/inInput-ReferredCurrentNoisef=100kHz1fA/5VElectricalCharacteristics(Note4)Unlessotherwisespecified,alllimitsareguaranteedforTA=25˚C,V+=5V,V−=0V,VCM=V+/2,andRL10kΩtoV+/2.Boldfacelimitsapplyatthetemperatureextremes.SymbolParameterConditionsMin(Note6)Typ(Note5)Max(Note6)UnitsVOSInputOffsetVoltageLMP7701±37±200±500µVLMP7702/LMP7704±32±220±520TCVOSInputOffsetVoltageDrift(Note7)±