LM2900资料

LM2900󰁋LM3900󰁋LM3301QuadAmplifiersFebruary1995

LM2900󰁋LM3900󰁋LM3301QuadAmplifiers

GeneralDescription

TheLM2900seriesconsistsoffourindependent󰀷dualinput󰀷internallycompensatedamplifierswhichweredesignedspecificallytooperateoffofasinglepowersupplyvoltageandtoprovidealargeoutputvoltageswing󰀟Theseamplifi-ersmakeuseofacurrentmirrortoachievethenon-invert-inginputfunction󰀟Applicationareasinclude󰀌acamplifiers󰀷RCactivefilters󰀷lowfrequencytriangle󰀷squarewaveandpulsewaveformgenerationcircuits󰀷tachometersandlowspeed󰀷highvoltagedigitallogicgates󰀟

Features

YYYYYYYY

Widesinglesupplyvoltage4VDCto32VDC

g2VDCtog16VDCRangeordualsupplies

SupplycurrentdrainindependentofsupplyvoltageLowinputbiasingcurrent30nAHighopen-loopgain70dBWidebandwidth2󰀟5MHz(unitygain)

a

Largeoutputvoltageswing(Vb1)Vp-pInternallyfrequencycompensatedforunitygainOutputshort-circuitprotection

SchematicandConnectionDiagrams

Dual-In-LineandS󰀟O󰀟

TL󰁋H󰁋7936–2

TopView

OrderNumberLM2900N󰀷LM3900M󰀷LM3900NorLM3301N

SeeNSPackageNumberM14AorN14A

TL󰁋H󰁋7936–1

C1995NationalSemiconductorCorporationTL󰁋H󰁋7936RRD-B30M115󰁋PrintedinU󰀟S󰀟A󰀟

元器件交易网www.cecb2b.com

AbsoluteMaximumRatings

IfMilitary󰁋Aerospacespecifieddevicesarerequired󰀷pleasecontacttheNationalSemiconductorSalesOffice󰁋Distributorsforavailabilityandspecifications󰀟

LM2900󰁋LM3900LM3301

SupplyVoltage32VDC28VDC

g16VDCg14VDC

PowerDissipation(TAe25󰀄C)(Note1)MoldedDIP1080mW1080mWS󰀟O󰀟Package765mW

ab

InputCurrents󰀷IINorIIN20mADC20mADCOutputShort-CircuitDuration󰁚OneAmplifierContinuousContinuousTAe25󰀄C(SeeApplicationHints)

b40󰀄Ctoa85󰀄COperatingTemperatureRange

b40󰀄Ctoa85󰀄CLM2900

LM39000󰀄Ctoa70󰀄C

b65󰀄Ctoa150󰀄Cb65󰀄Ctoa150󰀄CStorageTemperatureRange

260󰀄CLeadTemperature(Soldering󰀷10sec󰀟)260󰀄C

SolderingInformationDual-In-LinePackageSoldering(10sec󰀟)260󰀄C260󰀄CSmallOutlinePackageVaporPhase(60sec󰀟)215󰀄C215󰀄CInfrared(15sec󰀟)220󰀄C220󰀄CSeeAN-450‘‘SurfaceMountingMethodsandTheirEffectonProductReliability’’forothermethodsofsolderingsurfacemountdevices󰀟

ESDtolerance(Note7)2000V2000V

ElectricalCharacteristicsTAe25󰀄C󰀷Vae15VDC󰀷unlessotherwisestated

Parameter

OpenLoop

VoltageGainVoltageGainInputResistanceOutputResistance

UnityGainBandwidthInputBiasCurrentSlewRateSupplyCurrentOutputVoltageSwing

VOUTHighVOUTLowVOUTHigh

VeAbsoluteMaximumRatings

a

Conditions

OverTemp󰀟DVOe10VDCInvertingInput

LM2900Min

TypMaxMin

LM3900

TypMaxMin

LM3301TypMax

Units

1󰀟22󰀟818

1󰀟22󰀟8182󰀟5

1󰀟22󰀟8192󰀟5

V󰁋mVMXkXMHz300

nAV󰁋ms10

mADC

InvertingInputInvertingInput󰀷VInvertingInput

a

2󰀟5

e5VDC

300󰀟5206󰀟2

13󰀟5

0󰀟09

200300󰀟520

200300󰀟520

PositiveOutputSwingNegativeOutputSwingRLe%OnAllAmplifiersRLe2k󰀷a

Ve15󰀟0VDC

b

IINe0󰀷IINae0b

IINe10mA󰀷a

IINe0

10

13󰀟50󰀟2

6󰀟210

13󰀟5

6󰀟2

0󰀟090󰀟20󰀟090󰀟2

VDC

IINe0󰀷a

IINe0RLe%󰀷

b

29󰀟56

181󰀟35

29󰀟560󰀟5

101󰀟35

26󰀟050󰀟5

181󰀟35

mADC

OutputSourceCurrentSinkCapability

ISINK

(Note2)VOLe1V󰀷IIN

b

0󰀟5

e5mA

2

元器件交易网www.cecb2b.com

ElectricalCharacteristics(Note6)󰀷Vae15VDC󰀷unlessotherwisestated(Continued)

ParameterPowerSupplyRejectionMirrorGainDMirrorGainMirrorCurrentNegativeInputCurrentInputBiasCurrent

Conditions

TAe25󰀄C󰀷fe100Hz

󰀁󰀁󰀁

LM2900Min

Typ70

0󰀟900󰀟90

1󰀟01󰀟02101󰀟0300

1󰀟11󰀟15500

0󰀟900󰀟90

Max

Min

LM3900Typ701󰀟01󰀟02101󰀟0300

1󰀟11󰀟15500

0󰀟900󰀟90

Max

Min

LM3301Typ70112101󰀟0

1󰀟101󰀟105500Max

UnitsdBmA󰁋mA%mADCmADCnA

20mA(Note3)200mA(Note3)

20mAto200mA(Note3)

(Note4)

TAe25󰀄C(Note5)InvertingInput

Note1󰀌Foroperatingathightemperatures󰀷thedevicemustbederatedbasedona125󰀄Cmaximumjunctiontemperatureandathermalresistanceof92󰀄C󰁋Wwhichappliesforthedevicesolderedinaprintedcircuitboard󰀷operatinginastillairambient󰀟ThermalresistancefortheS󰀟O󰀟packageis131󰀄C󰁋W󰀟

Note2󰀌Theoutputcurrentsinkcapabilitycanbeincreasedforlargesignalconditionsbyoverdrivingtheinvertinginput󰀟ThisisshowninthesectiononTypicalCharacteristics󰀟

Note3󰀌Thisspecindicatesthecurrentgainofthecurrentmirrorwhichisusedasthenon-invertinginput󰀟

Note4󰀌InputVBEmatchbetweenthenon-invertingandtheinvertinginputsoccursforamirrorcurrent(non-invertinginputcurrent)ofapproximately10mA󰀟Thisisthereforeatypicaldesigncenterformanyoftheapplicationcircuits󰀟

Note5󰀌ClamptransistorsareincludedontheICtopreventtheinputvoltagesfromswingingbelowgroundmorethanapproximatelyb0󰀟3VDC󰀟Thenegativeinputcurrentswhichmayresultfromlargesignaloverdrivewithcapacitanceinputcouplingneedtobeexternallylimitedtovaluesofapproximately1mA󰀟Negativeinputcurrentsinexcessof4mAwillcausetheoutputvoltagetodroptoalowvoltage󰀟Thismaximumcurrentappliestoanyoneoftheinputterminals󰀟Ifmorethanoneoftheinputterminalsaresimultaneouslydrivennegativesmallermaximumcurrentsareallowed󰀟Common-modecurrentbiasingcanbeusedtopreventnegativeinputvoltages󰀥seeforexample󰀷the‘‘DifferentiatorCircuit’’intheapplicationssection󰀟Note6󰀌Thesespecsapplyforb40󰀄CsTAsa85󰀄C󰀷unlessotherwisestated󰀟Note7󰀌Humanbodymodel󰀷1󰀟5kXinserieswith100pF󰀟

ApplicationHints

Whendrivingeitherinputfromalow-impedancesource󰀷alimitingresistorshouldbeplacedinserieswiththeinputleadtolimitthepeakinputcurrent󰀟Currentsaslargeas20mAwillnotdamagethedevice󰀷butthecurrentmirroronthenon-invertinginputwillsaturateandcausealossofmir-rorgainatmAcurrentlevels󰁚especiallyathighoperatingtemperatures󰀟

Precautionsshouldbetakentoinsurethatthepowersupplyfortheintegratedcircuitneverbecomesreversedinpolarityorthattheunitisnotinadvertentlyinstalledbackwardsinatestsocketasanunlimitedcurrentsurgethroughtheresult-ingforwarddiodewithintheICcouldcausefusingoftheinternalconductorsandresultinadestroyedunit󰀟

Outputshortcircuitseithertogroundortothepositivepow-ersupplyshouldbeofshorttimeduration󰀟Unitscanbedestroyed󰀷notasaresultoftheshortcircuitcurrentcausingmetalfusing󰀷butratherduetothelargeincreaseinICchipdissipationwhichwillcauseeventualfailureduetoexces-sivejunctiontemperatures󰀟Forexample󰀷whenoperatingfromawell-regulateda5VDCpowersupplyatTAe25󰀄Cwitha100kXshunt-feedbackresistor(fromtheoutputtotheinvertinginput)ashortdirectlytothepowersupplywillnotcausecatastrophicfailurebutthecurrentmagnitudewillbeapproximately50mAandthejunctiontemperaturewillbeaboveTJmax󰀟Largerfeedbackresistorswillreducethecurrent󰀷11MXprovidesapproximately30mA󰀷anopencir-cuitprovides1󰀟3mA󰀷andadirectconnectionfromtheout-puttothenon-invertinginputwillresultincatastrophicfail-a

urewhentheoutputisshortedtoVasthisthenplacesthebase-emitterjunctionoftheinputtransistordirectlyacrossthepowersupply󰀟Short-circuitstogroundwillhavemagni-tudesofapproximately30mAandwillnotcausecata-strophicfailureatTAe25󰀄C󰀟

Unintentionalsignalcouplingfromtheoutputtothenon-in-vertinginputcancauseoscillations󰀟Thisislikelyonlyinbreadboardhook-upswithlongcomponentleadsandcanbepreventedbyamorecarefulleaddressorbylocatingthenon-invertinginputbiasingresistorclosetotheIC󰀟Aquickcheckofthisconditionistobypassthenon-invertinginputtogroundwithacapacitor󰀟Highimpedancebiasingresis-torsusedinthenon-invertinginputcircuitmakethisinputleadhighlysusceptibletounintentionalACsignalpickup󰀟Operationofthisamplifiercanbebestunderstoodbynotic-ingthatinputcurrentsaredifferencedattheinverting-inputterminalandthisdifferencecurrentthenflowsthroughtheexternalfeedbackresistortoproducetheoutputvoltage󰀟Common-modecurrentbiasingisgenerallyusefultoallowoperatingwithsignallevelsneargroundorevennegativeasthismaintainstheinputsbiasedataVBE󰀟Internalclamptransistors(seenote5)catch-negativeinputvoltagesatap-proximatelyb0󰀟3VDCbutthemagnitudeofcurrentflowhastobelimitedbytheexternalinputnetwork󰀟Foroperationathightemperature󰀷thislimitshouldbeapproximately100mA󰀟Thisnew‘‘Norton’’current-differencingamplifiercanbeusedinmostoftheapplicationsofastandardICopamp󰀟PerformanceasaDCamplifierusingonlyasinglesupplyisnotaspreciseasastandardICopampoperatingwithsplitsuppliesbutisadequateinmanylesscriticalapplications󰀟Newfunctionsaremadepossiblewiththisamplifierwhichareusefulinsinglepowersupplysystems󰀟Forexample󰀷biasingcanbedesignedseparatelyfromtheACgainaswasshowninthe‘‘invertingamplifier󰀷’’the‘‘differenceintegra-tor’’allowscontrollingthechargingandthedischargingoftheintegratingcapacitorwithpositivevoltages󰀷andthe‘‘fre-quencydoublingtachometer’’providesasimplecircuitwhichreducestheripplevoltageonatachometeroutputDCvoltage󰀟

3

元器件交易网www.cecb2b.com

TypicalPerformanceCharacteristics

OpenLoopGain

VoltageGain

VoltageGain

InputCurrentSupplyCurrent

LargeSignalFrequencyResponse

OutputSinkCurrentOutputClass-ABiasCurrentOutputSourceCurrent

SupplyRejectionMirrorGainMaximumMirrorCurrent

TL󰁋H󰁋7936–9

4

元器件交易网www.cecb2b.com

TypicalApplications(Vae15VDC)

InvertingAmplifier

Triangle󰁋SquareGenerator

VODCeAVjb

V2

a

R2R1

TL󰁋H󰁋7936–3

TL󰁋H󰁋7936–4

Frequency-DoublingTachometer

LowVINbVOUTVoltageRegulator

TL󰁋H󰁋7936–5

TL󰁋H󰁋7936–6

Non-InvertingAmplifierNegativeSupplyBiasing

VODCeAVj

V2

a

R2R1

TL󰁋H󰁋7936–7

VODCeAVj

R2b

VR3

TL󰁋H󰁋7936–8

R2R1

5

元器件交易网www.cecb2b.com

TypicalApplications(Vae15VDC)(Continued)

Low-DriftRampandHoldCircuit

TL󰁋H󰁋7936–10

Bi-QuadActiveFilter

(2ndDegreeState-VariableNetwork)

Qe50fOe1kHz

TL󰁋H󰁋7936–11

6

元器件交易网www.cecb2b.com

TypicalApplications(Vae15VDC)(Continued)

Voltage-ControlledCurrentSource(TransconductanceAmplifier)

TL󰁋H󰁋7936–12

HiVIN󰀷Lo(VINbVO)Self-Regulator

Q1󰁅Q2absorbHiVIN

TL󰁋H󰁋7936–13

Ground-ReferencingaDifferentialInputSignal

TL󰁋H󰁋7936–14

7

元器件交易网www.cecb2b.com

TypicalApplications(Vae15VDC)(Continued)

VoltageRegulator

FixedCurrentSources

(VOeVZaVBE)

TL󰁋H󰁋7936–15

I2e

R1

I1R2

TL󰁋H󰁋7936–16

Voltage-ControlledCurrentSink(TransconductanceAmplifier)

BufferAmplifier

VINtVBE

TL󰁋H󰁋7936–18

TL󰁋H󰁋7936–17

Tachometer

TL󰁋H󰁋7936–19

VODCeAfIN

󰀂AllowsVOtogotozero󰀟

8

元器件交易网www.cecb2b.com

TypicalApplications(Vae15VDC)(Continued)

Low-VoltageComparator

Nonegativevoltagelimitifproperlybiased󰀟

PowerComparator

TL󰁋H󰁋7936–20

TL󰁋H󰁋7936–21

ComparatorSchmitt-Trigger

TL󰁋H󰁋7936–22

TL󰁋H󰁋7936–23

Square-WaveOscillatorPulseGenerator

TL󰁋H󰁋7936–24

TL󰁋H󰁋7936–25

FrequencyDifferencingTachometer

VODCeA(f1bf2)

TL󰁋H󰁋7936–26

9

元器件交易网www.cecb2b.com

TypicalApplications(Vae15VDC)(Continued)

FrequencyAveragingTachometer

VODCeA(f1af2)

TL󰁋H󰁋7936–27

SquaringAmplifier(W󰁋Hysteresis)Bi-StableMultivibrator

TL󰁋H󰁋7936–29

TL󰁋H󰁋7936–28

Differentiator(Common-ModeBiasingKeepsInputataVBE)

‘‘OR’’Gate

feAaBaC

TL󰁋H󰁋7936–31

AVe

12

TL󰁋H󰁋7936–30

‘‘AND’’GateDifferenceIntegrator

feA󰀣B󰀣C

TL󰁋H󰁋7936–32

TL󰁋H󰁋7936–33

10

元器件交易网www.cecb2b.com

TypicalApplications(Vae15VDC)(Continued)

LowPassActiveFilter

fOe1kHz

TL󰁋H󰁋7936–34

StaircaseGenerator

VBEBiasing

AVjb

TL󰁋H󰁋7936–35

R2R1

TL󰁋H󰁋7936–36

BandpassActiveFilter

foe1kHzQe25

TL󰁋H󰁋7936–37

11

元器件交易网www.cecb2b.com

TypicalApplications(Vae15VDC)(Continued)

Low-FrequencyMixer

TL󰁋H󰁋7936–38

Free-RunningStaircaseGenerator󰁋PulseCounter

TL󰁋H󰁋7936–39

12

元器件交易网www.cecb2b.com

TypicalApplications(Vae15VDC)(Continued)

SupplyingIINwithAux󰀟Amp(toAllowHi-ZFeedbackNetworks)

TL󰁋H󰁋7936–40

One-ShotMultivibrator

PWj2c106C󰀂Speedsrecovery󰀟

TL󰁋H󰁋7936–41

Non-InvertingDCGainto(0󰀷0)

TL󰁋H󰁋7936–42

13

元器件交易网www.cecb2b.com

TypicalApplications(Vae15VDC)(Continued)

ChannelSelectionbyDCControl(orAudioMixer)

TL󰁋H󰁋7936–43

14

元器件交易网www.cecb2b.com

TypicalApplications(Vae15VDC)(Continued)

PowerAmplifier

TL󰁋H󰁋7936–44

One-ShotwithDCInputComparator

TripsatVINj0󰀟8V

a

VINmustfall0󰀟8Vpriortot2

TL󰁋H󰁋7936–45

a

HighPassActiveFilter

TL󰁋H󰁋7936–46

15

元器件交易网www.cecb2b.com

TypicalApplications(Vae15VDC)(Continued)

Sample-HoldandComparewithNewaVIN

TL󰁋H󰁋7936–47

SawtoothGenerator

TL󰁋H󰁋7936–48

16

元器件交易网www.cecb2b.com

TypicalApplications(Vae15VDC)(Continued)

Phase-LockedLoop

TL󰁋H󰁋7936–49

Boostingto300mALoads

TL󰁋H󰁋7936–50

17

元器件交易网www.cecb2b.com

Split-SupplyApplications(Vaea15VDC󰁅Vbeb15VDC)

Non-InvertingDCGain

TL󰁋H󰁋7936–51

ACAmplifier

TL󰁋H󰁋7936–52

18

元器件交易网www.cecb2b.com

PhysicalDimensionsinches(millimeters)

SmallOutlinePackage(M)OrderNumberLM3900MNSPackageNumberM14A

19

元器件交易网www.cecb2b.com

LM2900󰁋LM3900󰁋LM3301QuadAmplifiersPhysicalDimensionsinches(millimeters)(Continued)

MoldedDual-In-LinePackage(N)

OrderNumberLM2900N󰀷LM3900NorLM3301N

NSPackageNumberN14A

LIFESUPPORTPOLICY

NATIONAL’SPRODUCTSARENOTAUTHORIZEDFORUSEASCRITICALCOMPONENTSINLIFESUPPORTDEVICESORSYSTEMSWITHOUTTHEEXPRESSWRITTENAPPROVALOFTHEPRESIDENTOFNATIONALSEMICONDUCTORCORPORATION󰀟Asusedherein󰀌1󰀟Lifesupportdevicesorsystemsaredevicesorsystemswhich󰀷(a)areintendedforsurgicalimplantintothebody󰀷or(b)supportorsustainlife󰀷andwhosefailuretoperform󰀷whenproperlyusedinaccordancewithinstructionsforuseprovidedinthelabeling󰀷canbereasonablyexpectedtoresultinasignificantinjurytotheuser󰀟

NationalSemiconductorCorporation1111WestBardinRoad2󰀟Acriticalcomponentisanycomponentofalifesupportdeviceorsystemwhosefailuretoperformcanbereasonablyexpectedtocausethefailureofthelifesupportdeviceorsystem󰀷ortoaffectitssafetyoreffectiveness󰀟

NationalSemiconductorEuropeFax󰀌(a49)0-180-5308586NationalSemiconductorHongKongLtd󰀟13thFloor󰀷StraightBlock󰀷NationalSemiconductorJapanLtd󰀟Tel󰀌81-043-299-2309