DS1651资料

DS1651/DS3651QuadHighSpeedMOSSenseAmplifiersJune1999

DS1651/DS3651

QuadHighSpeedMOSSenseAmplifiers

GeneralDescription

TheDS1651/DS3651isTTLcompatiblehighspeedcircuitsintendedforsensinginabroadrangeofMOSmemorysys-temapplications.SwitchingspeedshavebeenenhancedoverconventionalsenseamplifiersbyapplicationofSchot-tkytechnology,andTRI-STATE®strobingisincorporated,of-feringahighimpedanceoutputstateforbusedorganization.TheDS1651/DS3651hasactivepull-upoutputsandoffersopencollectoroutputsprovidingimplied“AND”operations.

Features

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HighspeedTTLcompatible

Inputsensitivity—±7mV

TRI-STATEoutputsforhighspeedbusesStandardsupplyvoltages—±5V

PinandfunctioncompatiblewithMC3430

ConnectionDiagram

Dual-in-LinePackage

TruthTable

Input

VID≥7mW

TA=0˚Cto+70˚C−7mV≤VID≤+7mVTA=0˚Cto+70˚CVID≤−7mV

TA=0˚Cto+70˚C

L=LowlogicstateH=HighlogicstateOpen=TRI-STATEX=Indeterminatestate

StrobeLHLHLH

OutputDS3651HOpenXOpenLOpen

DS007528-1

TopView

OrderNumberDS1651J,DS3651JorDS3651N

SeeNSPackageNumberJ16AorN16A

TRI-STATE®isaregisteredtrademarkofNationalSemiconductorCorporation.

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TypicalApplications

ATypicalMOSMemorySensingApplicationfora4kworkby4-bitMemoryArrangementEmploying1103TypeMemoryDevices

DS007528-2

Note:Only4devicesarerequiredfora4kwordby16-bitmemorysystem.

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AbsoluteMaximumRatings(Note2)

IfMilitary/Aerospacespecifieddevicesarerequired,pleasecontacttheNationalSemiconductorSalesOffice/Distributorsforavailabilityandspecifications.

PowerSupplyVoltages

+7VDCVCCVEE−7VDCDifferential-ModeInputSignalVoltage

±6VDCRange,VIDRCommon-ModeInputVoltageRange,

±5VDCVICRStrobeInputVoltage,VI(S)5.5VDCStrobeTemperatureRange−65˚Cto+150˚CMaximumPowerDissipation(Note1)at25˚CCavityPackage1509mWMoldedPackage1476mWLeadTemp.(Soldering,10seconds)300˚C

OperatingConditions

Min

SupplyVoltage(VCC)

DS1651DS3651

SupplyVoltage(VEE)DS1651DS3651

OperatingTemperature(TA)DS1651DS3651

OutputLoadCurrent,(IOL)DifferentialModeInputVoltageRange,(VIDR)Common-ModeInputVoltageRange,(VICR)InputVoltageRange

(AnyInputtoGND),(VIR)

4..75−4.5−4.75−550

Max5.55.25−5.5−5.25+125+7016+5.0+3.0+3.0

UnitVVVV˚C˚CmAVVV

−5.0−3.0−5.0

ElectricalCharacteristics

VCC=5VDC,VEE=−5VDC,Min≤TA≤Max,unlessotherwisenoted(Notes3,4)SymbolVISParameter

InputSensitivity(Note6)(Common-ModeVoltageRange)

VICR=−3V≤VIN≤+3VInputOffsetVoltageInputBiasCurrentInputOffsetCurrentStrobeInputVoltage(LowState)

StrobeInputVoltage(HighState)

StrobeCurrent(LowState)StrobeCurrent(HighState)

VCC=Max,VEE=Max,VIN=0.4VVCC=Max,VEE=Max

VIN=2.4VVIN=VCCVIN=2.4VVIN=VCCVOHVOLIOSIOFFICCIEEOutputVoltage(HighStates)OutputVoltage(LowState)OutputCurrentShortCircuitOutputDisableLeakageCurrent

HighLogicLevelSupplyCurrent

HighLogicLevelSupplyCurrent

VCC=Min,VEE=MinVCC=Min,VEE=Min

IO=−400µAIO=16mA

DS1651/DS3651DS3651DS1651DS1651/DS3651DS3651DS1651

VCC=Max,VEE=MaxVCC=Max,VEE=Max

45−17

−182.4

0.450.50−704010060−30

DS1651DS3651

2

−1.011001

VCC=Max,VEE=Max

0.5

0.8

Min≤VCC≤MaxMin≥VEE≥Max

Conditions

Min

Typ

Max

UnitmVmV

20

µAµAVVmAµAmAµAmAVVmAµAµAmAmA

±7.0

2

VIOIIBIIOVIL(S)VIH(S)IIL(S)IIL(S)VCC=Max,VEE=Max,(Note5)VCC=Max,VEE=Max

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SwitchingCharacteristics

VCC=5VDC,VEE=−5VDC,TA=25˚Cunlessotherwisenoted.SymboltPHL(D)tPLH(D)tPOH(S)tPHO(S)tPOL(S)tPLO(S)Parameter

High-to-LowLogicLevelPropagationDelayTime(DifferentialInputs)Low-to-HighLogicLevelPropagationDelayTime(DifferentialInputs)TRI-STATEtoHighLogicLevelPropagationDelayTime(Strobe)HighLogicLeveltoTRI-STATEPropagationDelayTime(Strobe)TRI-STATEtoLowLogicLevelPropagationDelayTime(Strobe)LowLogicLeveltoTRI-STATEPropagationDelayTime(Strobe)

Conditions

5mV+VIS,(Figure2)5mV+VIS,(Figure2)(Figure1)(Figure1)(Figure1)(Figure1)

DS1651/DS3651DS1651/DS3651DS1651/DS3651DS1651/DS3651DS1651/DS3651DS1651/DS3651

Min

Typ23221671914

Max455521182729

Unitsnsnsnsnsnsns

Note1:Deratecavitypackage10.1mW/˚Cabove25˚C;deratemoldedpackage11.8mW/˚Cabove25˚C.

Note2:“AbsoluteMaximumRatings”arethosevaluesbeyondwhichthesafetyofthedevicecannotbeguaranteed.Exceptfor“OperatingTemperatureRange”theyarenotmeanttoimplythatthedeviceshouldbeoperatedattheselimits.Thetableof“ElectricalCharacteristics”providesconditionsforactualdeviceoperation.Note3:Unlessotherwisespecifiedmin/maxlimitsapplyacrossthe0˚Cto+70˚CrangefortheDS3651andacrossthe−55˚Cto+125˚CrangefortheDS1651.AlltypicalvaluesareforTA=25˚C,VCC=5VandVEE=−5V.

Note4:Allcurrentsintodevicepinsshownaspositive,outofdevicepinsasnegative,allvoltagesreferencedtogroundunlessotherwisenoted.Allvaluesshownasmaxorminonabsolutevaluebasis.

Note5:Onlyoneoutputatatimeshouldbeshorted.

Note6:Aparameterwhichisofprimaryconcernwhendesigningwithsenseamplifiersis,whatistheminimumdifferentialinputvoltagerequiredatthesenseam-plifierinputterminalstoguaranteeagivenoutputlogicstate.Thisparameteriscommonlyreferredtoasthresholdvoltage.Itiswellknownthatdesignconsiderationsofthresholdvoltageareplaguedbyinputoffsetcurrents,biascurrents,networksourceresistances,andvoltagegain.Asadesignconvenience,theDS1651andDS3651arespecifiedtoaparametercalledinputsensitivity(VIS).Thisparametertakesintoconsiderationinputoffsetcurrentsandbiascurrents,andguaranteesaminimuminputdifferentialvoltagetocauseagivenoutputlogicstatewithrespecttoamaximumsourceimpedanceof200Ωateachinput.

SwitchingTimeWaveform

DS007528-3

Note:OutputofchannelBshownundertest,otherchannelsaretestedsimilarly.

DelaytPLO(S))tPOL(S)tPHO(S)tPOH(S)V1100mV100mVGNDGND

V2GNDGND100mV100mV

S1ClosedClosedClosedOpen

S2ClosedOpenClosedClosed

CL15pF50pF15pF50pF

CLincludesjigandprobecapacitance.

EINwaveformcharacteristics:tTLHandtTHL≤10nsmeasured10%to90%PRR=1MHzDutycycle=50%

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ACTestCircuits

tPLO(S)tPHO(S)DS007528-4

DS007528-5

tPOL(S)tPOH(S)DS007528-6

DS007528-7

FIGURE1.StrobePropagationDelaytPLO(S),tPOL(S),tPHL(S)andtPOH(S)DS007528-8

Note:OutputofchannelBshownundertest,otherchannelsaretestedsimilarly.S1at“B”forDS1651/DS3651,CL=50pFtotalforDS1651/DS3651.

DS007528-9

EINwaveformcharacteristics:

tTLHandtTHL≤10nsmeasured10%to90%PRR=1MHz,dutycycle=500ns

FIGURE2.DifferentialInputPropagationDelaytPLH(D)andtPHL(D)5www.national.com

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SchematicDiagrams

DS1651/DS3651

DS007528-10

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TypicalApplications

LevelDetectorwithHysteresis

TransferCharacteristicsandEquationsfor

LevelDetectorwithHysteresis

DS007528-11

DS007528-12

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TypicalApplications

(Continued)

4-BitParallelA/DConverter

DS007528-14

20=(A+B)(C+D)(E+F)(H+J)(K+L)(M+N)(P+R)(S)21=(B+D)(F+J)(L+N)(R)22=(D+J)(N)23=JConversiontime)50ns

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PhysicalDimensions

inches(millimeters)unlessotherwisenoted

CeramicDual-in-LinePackage(J)

OrderNumberDS1651J,DS1653J,DS3651JorDS3653J

NSPackageNumberJ16A

MoldedDual-in-LinePackage(N)OrderNumberDS3651NorDS3653N

NSPackageNumberN16A

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DS1651/DS3651QuadHighSpeedMOSSenseAmplifiersNotes

LIFESUPPORTPOLICY

NATIONAL’SPRODUCTSARENOTAUTHORIZEDFORUSEASCRITICALCOMPONENTSINLIFESUPPORTDEVICESORSYSTEMSWITHOUTTHEEXPRESSWRITTENAPPROVALOFTHEPRESIDENTANDGENERALCOUNSELOFNATIONALSEMICONDUCTORCORPORATION.Asusedherein:1.Lifesupportdevicesorsystemsaredevicesorsystemswhich,(a)areintendedforsurgicalimplantintothebody,or(b)supportorsustainlife,andwhosefailuretoperformwhenproperlyusedinaccordancewithinstructionsforuseprovidedinthelabeling,canbereasonablyexpectedtoresultinasignificantinjurytotheuser.

NationalSemiconductorCorporationAmericas

Tel:1-800-272-9959Fax:1-800-737-7018Email:support@nsc.com

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NationalSemiconductorEurope

Fax:+49(0)180-5308586Email:europe.support@nsc.com

DeutschTel:+49(0)180-5308585EnglishTel:+49(0)180-5327832FrançaisTel:+49(0)180-5329358ItalianoTel:+49(0)180-5341680

2.Acriticalcomponentisanycomponentofalifesupportdeviceorsystemwhosefailuretoperformcanbereasonablyexpectedtocausethefailureofthelifesupportdeviceorsystem,ortoaffectitssafetyoreffectiveness.

NationalSemiconductorAsiaPacificCustomerResponseGroupTel:65-24466Fax:65-2504466

Email:sea.support@nsc.com

NationalSemiconductorJapanLtd.

Tel:81-3-5639-7560Fax:81-3-5639-7507

Nationaldoesnotassumeanyresponsibilityforuseofanycircuitrydescribed,nocircuitpatentlicensesareimpliedandNationalreservestherightatanytimewithoutnoticetochangesaidcircuitryandspecifications.