Texas Instruments LF198JAN Handleiding
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LF198JAN
www.ti.com
SNOSAJ2A–FEBRUARY2005–REVISEDMARCH2013
LF198JANMonolithicSample-and-HoldCircuits
CheckforSamples:LF198JAN
1
FEATURES
DESCRIPTION
TheLF198isamonolithicsample-and-holdcircuit
2
•Operatesfrom±5Vto±18VSupplies
whichutilizesBI-FETtechnologytoobtainultra-high
•LessThan10μsAcquisitionTime
dcaccuracywithfastacquisitionofsignalandlow
•TTL,PMOS,CMOSCompatibleLogicInput
drooprate.Operatingasaunitygainfollower,dcgain
accuracyis0.002%typicalandacquisitiontimeisas
•0.5mVTypicalHoldStepatC
h
=0.01μF
lowas6μsto0.01%.Abipolarinputstageisusedto
•LowInputOffset
achievelowoffsetvoltageandwidebandwidth.Input
•0.002%GainAccuracy
offsetadjustisaccomplishedwithasinglepin,and
doesnotdegradeinputoffsetdrift.Thewide
•LowOutputNoiseinHoldMode
bandwidthallowstheLF198tobeincludedinsidethe
•InputCharacteristicsDoNotChangeDuring
feedbackloopof1MHzopampswithouthaving
HoldMode
stabilityproblems.Inputimpedanceof10
10
Ωallows
•HighSupplyRejectionRatioinSampleorHold
highsourceimpedancestobeusedwithout
degradingaccuracy.
•WideBandwidth
•SpaceQualified
P-channeljunctionFET'sarecombinedwithbipolar
LogicInputsontheLF198areFullyDifferential
devicesintheoutputamplifiertogivedroopratesas
lowas5mV/minwitha1μFholdcapacitor.The
withLowInputCurrent,AllowingDirect
JFET'shavemuchlowernoisethanMOSdevices
ConnectiontoTTL,PMOS,andCMOS.
usedinpreviousdesignsanddonotexhibithigh
DifferentialThresholdis1.4V.TheLF198will
temperatureinstabilities.Theoveralldesignensures
Operatefrom±5Vto±18VSupplies.
nofeed-throughfrominputtooutputinthehold
mode,evenforinputsignalsequaltothesupply
voltages.
ConnectionDiagrams
Figure1.TO-99Package
SeePackageNumberLMC
1
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2Alltrademarksarethepropertyoftheirrespectiveowners.
PRODUCTIONDATAinformationiscurrentasofpublicationdate.
Copyright©2005–2013,TexasInstrumentsIncorporated
ProductsconformtospecificationsperthetermsoftheTexas
Instrumentsstandardwarranty.Productionprocessingdoesnot
necessarilyincludetestingofallparameters.
Product specificaties
| Merk: | Texas Instruments |
| Categorie: | Niet gecategoriseerd |
| Model: | LF198JAN |
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