LM118/LM218/LM318 Operational Amplifiers
Literature Number: SNOSBS8B
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LM118/LM218/LM318OperationalAmplifiersAugust2000
LM118/LM218/LM318OperationalAmplifiers
GeneralDescription
TheLM118seriesareprecisionhighspeedoperationalam-plifiersdesignedforapplicationsrequiringwidebandwidthandhighslewrate.TheyfeatureafactoroftenincreaseinspeedovergeneralpurposedeviceswithoutsacrificingDCperformance.
TheLM118serieshasinternalunitygainfrequencycompen-sation.Thisconsiderablysimplifiesitsapplicationsincenoexternalcomponentsarenecessaryforoperation.However,unlikemostinternallycompensatedamplifiers,externalfre-quencycompensationmaybeaddedforoptimumperfor-mance.Forinvertingapplications,feedforwardcompensa-tionwillboosttheslewratetoover150V/µsandalmostdoublethebandwidth.Overcompensationcanbeusedwiththeamplifierforgreaterstabilitywhenmaximumbandwidthisnotneeded.Further,asinglecapacitorcanbeaddedtoreducethe0.1%settlingtimetounder1µs.
ThehighspeedandfastsettlingtimeoftheseopampsmakethemusefulinA/Dconverters,oscillators,activefilters,
sampleandholdcircuits,orgeneralpurposeamplifiers.ThesedevicesareeasytoapplyandofferanorderofmagnitudebetterACperformancethanindustrystandardssuchastheLM709.
TheLM218isidenticaltotheLM118exceptthattheLM218hasitsperformancespecifiedovera−25˚Cto+85˚Ctem-peraturerange.TheLM318isspecifiedfrom0˚Cto+70˚C.
Features
nnnnnnn
15MHzsmallsignalbandwidthGuaranteed50V/µsslewrateMaximumbiascurrentof250nA
Operatesfromsuppliesof±5Vto±20VInternalfrequencycompensationInputandoutputoverloadprotected
Pincompatiblewithgeneralpurposeopamps
FastVoltageFollower
(Note1)
00776613
Note1:Donothard-wireasvoltagefollower(R1≥5kΩ)
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LM118/LM218/LM318AbsoluteMaximumRatings(Note7)
IfMilitary/Aerospacespecifieddevicesarerequired,pleasecontacttheNationalSemiconductorSalesOffice/Distributorsforavailabilityandspecifications.SupplyVoltage
PowerDissipation(Note2)DifferentialInputCurrent(Note3)InputVoltage(Note4)OutputShort-CircuitDurationOperatingTemperatureRangeLM118LM218LM318
StorageTemperatureRange
−55˚Cto+125˚C−25˚Cto+85˚C0˚Cto+70˚C−65˚Cto+150˚C
LeadTemperature(Soldering,10sec.)HermeticPackagePlasticPackageSolderingInformationDual-In-LinePackageSoldering(10sec.)SmallOutlinePackageVaporPhase(60sec.)Infrared(15sec.)
215˚C220˚C260˚C300˚C260˚C
±20V
500mW
±10mA±15V
Continuous
SeeAN-450“SurfaceMountingMethodsandTheirEffectonProductReliability”forothermethodsofsolderingsurfacemountdevices.ESDTolerance(Note8)
2000V
ElectricalCharacteristics(Note5)
Parameter
InputOffsetVoltageInputOffsetCurrentInputBiasCurrentInputResistanceSupplyCurrent
LargeSignalVoltageGainSlewRate
SmallSignalBandwidthInputOffsetVoltageInputOffsetCurrentInputBiasCurrentSupplyCurrent
LargeSignalVoltageGainOutputVoltageSwingInputVoltageRange
Common-ModeRejectionRatioSupplyVoltageRejectionRatio
TA=125˚C
VS=±15V,VOUT=±10VRL≥2kΩ
VS=±15V,RL=2kΩVS=±15V
25
4.5
TA=25˚CTA=25˚CTA=25˚CTA=25˚CTA=25˚C
TA=25˚C,VS=±15VVOUT=±10V,RL≥2kΩTA=25˚C,VS=±15V,AV=1(Note6)
TA=25˚C,VS=±15V
15
61005007
20
15
15300750
MHzmVnAnAmAV/mV
50
70
50
70
V/µs
501
Conditions
LM118/LM218Min
Typ2612035200
8
25
Max450250
0.5Min
LM318Typ43015035200
10Max10200500
mVnAnAMΩmAV/mVUnits
±12±11.5
8070
±13
10080
±12±11.5
7065
±13
10080
VVdBdB
Note2:ThemaximumjunctiontemperatureoftheLM118is150˚C,theLM218is110˚C,andtheLM318is110˚C.Foroperatingatelevatedtemperatures,devicesintheH08packagemustbederatedbasedonathermalresistanceof160˚C/W,junctiontoambient,or20˚C/W,junctiontocase.Thethermalresistanceofthedual-in-linepackageis100˚C/W,junctiontoambient.
Note3:Theinputsareshuntedwithback-to-backdiodesforovervoltageprotection.Therefore,excessivecurrentwillflowifadifferentialinputvoltageinexcessof1Visappliedbetweentheinputsunlesssomelimitingresistanceisused.
Note4:Forsupplyvoltageslessthan±15V,theabsolutemaximuminputvoltageisequaltothesupplyvoltage.
Note5:Thesespecificationsapplyfor±5V≤VS≤±20Vand−55˚C≤TA≤+125˚C(LM118),−25˚C≤TA≤+85˚C(LM218),and0˚C≤TA≤+70˚C(LM318).Also,powersuppliesmustbebypassedwith0.1µFdisccapacitors.
Note6:SlewrateistestedwithVS=±15V.TheLM118isinaunity-gainnon-invertingconfiguration.VINissteppedfrom−7.5Vto+7.5Vandviceversa.Theslewratesbetween−5.0Vand+5.0Vandviceversaaretestedandguaranteedtoexceed50V/µs.Note7:RefertoRETS118XforLM118HandLM118Jmilitaryspecifications.Note8:Humanbodymodel,1.5kΩinserieswith100pF.
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LM118/LM218/LM318TypicalPerformanceCharacteristics
LM118,LM218
InputCurrent
VoltageGain
0077662500776626
PowerSupplyRejectionInputNoiseVoltage
0077662700776628
CommonModeRejectionSupplyCurrent
00776629
00776630
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LM118/LM218/LM318TypicalPerformanceCharacteristics
ClosedLoopOutput
Impedance
LM118,LM218(Continued)
CurrentLimiting
00776631
00776632
InputCurrentUnityGainBandwidth
0077663300776634
VoltageFollowerSlewRateInverterSettlingTime
0077663500776636
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LM118/LM218/LM318TypicalPerformanceCharacteristics
LargeSignalFrequency
Response
LM118,LM218(Continued)
OpenLoopFrequency
Response
00776637
00776638
VoltageFollowerPulse
ResponseLargeSignalFrequency
Response
00776639
00776640
OpenLoopFrequency
Response
InverterPulseResponse
0077664100776642
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LM118/LM218/LM318TypicalPerformanceCharacteristics
LM318
InputCurrent
VoltageGain
00776643
00776644
PowerSupplyRejectionInputNoiseVoltage
0077664500776646
CommonModeRejectionSupplyCurrent
00776647
00776648
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LM118/LM218/LM318TypicalPerformanceCharacteristics
ClosedLoopOutputImpedance
LM318(Continued)
CurrentLimiting
00776649
00776650
InputCurrentUnityGainBandwidth
0077665100776652
VoltageFollowerSlewRateInverterSettlingTime
0077665300776654
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LM118/LM218/LM318TypicalPerformanceCharacteristics
LargeSignalFrequency
Response
LM318(Continued)
OpenLoopFrequency
Response
0077665500776656
VoltageFollowerPulse
ResponseLargeSignalFrequency
Response
00776657
00776658
OpenLoopFrequency
Response
InverterPulseResponse
00776659
00776660
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LM118/LM218/LM318AuxiliaryCircuits
FeedforwardCompensationforGreaterInvertingSlewRate
(Note9)
OffsetBalancing
00776610
IsolatingLargeCapacitiveLoads
00776608
*Balancecircuitnecessaryforincreasedslew.Note9:Slewratetypically150V/µs.
CompensationforMinimumSettlingTime
(Note10)
00776611
Overcompensation
00776612
00776609
Note10:Slewandsettlingtimeto0.1%fora10Vstepchangeis800ns.
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LM118/LM218/LM318TypicalApplications
FastVoltageFollower
(Note11)
00776613
IntegratororSlowInverter
00776614
CF=Large(CF≥50pF)
*Donothard-wireasintegratororslowinverter;inserta10k-5pFnetworkinserieswiththeinput,topreventoscillation.Note11:Donothard-wireasvoltagefollower(R1≥5kΩ)
FastSummingAmplifierDifferentialAmplifier
00776616
00776615
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LM118/LM218/LM318TypicalApplications
(Continued)
FastSampleandHold
00776618
D/AConverterUsingLadderNetwork
00776619
*Optional—Reducessettlingtime.
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LM118/LM218/LM318TypicalApplications
(Continued)
FourQuadrantMultiplier
00776617
∆Outputzero.*“Y”zero+“X”zero‡Fullscaleadjust.
D/AConverterUsingBinaryWeightedNetwork
00776620
*Optional—Reducessettlingtime.
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LM118/LM218/LM318TypicalApplications
(Continued)
FastSummingAmplifierwithLowInputCurrent
00776621
WeinBridgeSineWaveOscillatorInstrumentationAmplifier
00776622
00776623
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LM118/LM218/LM318SchematicDiagram
00776601
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LM118/LM218/LM318ConnectionDiagram
Dual-In-LinePackage
Dual-In-LinePackage
00776603
00776624
TopView
OrderNumberLM118J/883(Note13)SeeNSPackageNumberJ14A
TopView
OrderNumberLM118J-8/883(Note13),
LM318MorLM318N
SeeNSPackageNumberJ08A,M08AorN08B
MetalCanPackage
(Note12)
00776602
TopView
OrderNumberLM118H,LM118H/883(Note13),
LM218HorLM318H
SeeNSPackageNumberH08C
Note12:Pinconnectionsshownonschematicdiagramandtypicalapplica-tionsareforTO-5package.
Note13:AvailableperJM38510/10107.
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LM118/LM218/LM318PhysicalDimensions
unlessotherwisenoted
inches(millimeters)
MetalCanPackage(H)
OrderNumberLM118H,LM118H/883,LM218HorLM318H
NSPackageNumberH08C
CeramicDual-In-LinePackage(J)OrderNumberLM118J-8/883NSPackageNumberJ08A
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LM118/LM218/LM318PhysicalDimensions
inches(millimeters)unlessotherwisenoted(Continued)
CeramicDual-In-LinePackage(J)
OrderNumberLM118J/883NSPackageNumberJ14A
S.O.Package(M)
OrderNumberLM318MorLM318MX
NSPackageNumberM08A
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LM118/LM218/LM318OperationalAmplifiersPhysicalDimensions
inches(millimeters)unlessotherwisenoted(Continued)
MoldedDual-In-LinePackage(N)
OrderNumberLM318NNSPackageNumberN08E
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