buffercom

OPA615www.
ti.
com.
SBOS299E–FEBRUARY2004–REVISEDSEPTEMBER2009Wide-Bandwidth,DCRestorationCircuitCheckforSamples:OPA6151FEATURESDESCRIPTION2PROPAGATIONDELAY:1.
9nsTheOPA615isacompletesubsystemforveryfastandpreciseDCrestoration,offsetclamping,andBANDWIDTH:low-frequencyhumsuppressionofwidebandOTA:710MHzamplifiersorbuffers.
AlthoughitisdesignedtoComparator:730MHzstabilizetheperformanceofvideosignals,thecircuitLOWINPUTBIASCURRENT:±1μAcanalsobeusedasasample-and-holdamplifier,SAMPLE-AND-HOLDSWITCHINGhigh-speedintegrator,orpeakdetectorforTRANSIENTS:±5mVnanosecondpulses.
ThedevicefeaturesawidebandOperationalTransconductanceAmplifier(OTA)withaSAMPLE-AND-HOLDFEEDTHROUGHhigh-impedancecascodecurrentsourceoutputandREJECTION:100dBfastandprecisesamplingcomparatorthattogetherCHARGEINJECTION:40fCsetanewstandardforhigh-speedapplications.
BothHOLDCOMMANDDELAYTIME:2.
5nstheOTAandthesamplingcomparatorcanbeusedasstand-alonecircuitsorcombinedtoformamoreTTL/CMOSHOLDCONTROLcomplexsignalprocessingstage.
Theself-biased,bipolarOTAcanbeviewedasanidealAPPLICATIONSvoltage-controlledcurrentsourceandisoptimizedforBROADCAST/HDTVEQUIPMENTlowinputbiascurrent.
ThesamplingcomparatorhasTELECOMMUNICATIONSEQUIPMENTtwoidenticalhigh-impedanceinputsandacurrentsourceoutputoptimizedforlowoutputbiascurrentHIGH-SPEEDDATAACQUISITIONandoffsetvoltage;itcanbecontrolledbyaCADMONITORS/CCDIMAGEPROCESSINGTTL-compatibleswitchingstagewithinafewNANOSECONDPULSEINTEGRATOR/PEAKnanoseconds.
ThetransconductanceoftheOTAandDETECTORsamplingcomparatorcanbeadjustedbyanexternalPULSECODEMODULATOR/DEMODULATORresistor,allowingbandwidth,quiescentcurrent,andCOMPLETEVIDEODCLEVELRESTORATIONgaintrade-offstobeoptimized.
SAMPLE-AND-HOLDAMPLIFIERTheOPA615isavailableinbothanSO-14SHC615UPGRADEsurface-mountandanMSOP-10package.
1Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
2Alltrademarksarethepropertyoftheirrespectiveowners.
PRODUCTIONDATAinformationiscurrentasofpublicationdate.
Copyright2004–2009,TexasInstrumentsIncorporatedProductsconformtospecificationsperthetermsoftheTexasInstrumentsstandardwarranty.
Productionprocessingdoesnotnecessarilyincludetestingofallparameters.
OPA615SBOS299E–FEBRUARY2004–REVISEDSEPTEMBER2009.
www.
ti.
comThisintegratedcircuitcanbedamagedbyESD.
TexasInstrumentsrecommendsthatallintegratedcircuitsbehandledwithappropriateprecautions.
Failuretoobserveproperhandlingandinstallationprocedurescancausedamage.
ESDdamagecanrangefromsubtleperformancedegradationtocompletedevicefailure.
Precisionintegratedcircuitsmaybemoresusceptibletodamagebecauseverysmallparametricchangescouldcausethedevicenottomeetitspublishedspecifications.
Table1.
ORDERINGINFORMATION(1)SPECIFIEDPACKAGETEMPERATUREPACKAGETRANSPORTMEDIA,PRODUCTPACKAGEDESIGNATORRANGEMARKINGORDERINGNUMBERQUANTITYOPA615IDRails,50OPA615SO-14D–40°Cto+85°COPA615IDOPA615IDRTapeandReel,2500OPA615IDGSTTapeandReel,250OPA615MSOP-10DGS–40°Cto+85°CBJTOPA615IDGSRTapeandReel,2500(1)ForthemostcurrentpackageandorderinginformationseethePackageOptionAddendumattheendofthisdocument,orseetheTIwebsiteatwww.
ti.
com.
ABSOLUTEMAXIMUMRATINGS(1)SupplyVoltage±6.
5VDifferentialInputVoltage±VSCommon-ModeInputVoltageRange±VSHoldControlPinVoltage–VSto+VSStorageTemperatureRange–65°Cto+125°CJunctionTemperature(TJ)+150°CESDRatings:HumanBodyModel(HBM)(2)1000VChargeDeviceModel(CDM)1000VMachineModel(MM)150V(1)Stressesabovetheseratingsmaycausepermanentdamage.
Exposuretoabsolutemaximumconditionsforextendedperiodsmaydegradedevicereliability.
Thesearestressratingsonly,andfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthosespecifiedisnotimplied.
(2)Pin2fortheSO-14packageandpin1fortheMSOP-10package>500VHBM.
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SBOS299E–FEBRUARY2004–REVISEDSEPTEMBER2009BLOCKDIAGRAMSPINCONFIGURATIONSCopyright2004–2009,TexasInstrumentsIncorporatedSubmitDocumentationFeedback3ProductFolderLink(s):OPA615OPA615SBOS299E–FEBRUARY2004–REVISEDSEPTEMBER2009.
www.
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comELECTRICALCHARACTERISTICS:VS=±5VRL=100,RQ=300,andRIN=50,unlessotherwisenoted.
OPA615ID,OPA615IDGSTYPMIN/MAXOVERTEMPERATURE0°Cto–40°CtoMIN/TESTPARAMETERCONDITIONS+25°C+25°C(2)70°C(3)+85°C(3)UNITMAXLEVEL(1)ACPERFORMANCE(OTA)SeeFigure36bSmall-SignalBandwidth(BtoE)VO=200mVPP,RL=500710MHzminCVO=1.
4VPP,RL=500770MHzminCVO=2.
8VPP,RL=500230MHzminCLarge-SignalBandwidth(BtoE)VO=5VPP,RL=500200MHzminCSmall-SignalBandwidth(BtoC)G=+1,VO=200mVPP,RL=100440MHzminCG=+1,VO=1.
4VPP,RL=100475MHzminCG=+1,VO=2.
8VPP,RL=100230MHzminCLarge-SignalBandwidth(BtoC)G=+1,VO=5VPP,RL=100230MHzminCRise-and-FallTime(BtoE)VO=2VPP,RL=5002nsmaxCRise-and-FallTime(BtoC)G=+1,VO=2VPP,RL=1002nsmaxCHarmonicDistortion(BtoE)RE=1002nd-HarmonicVO=1.
4VPP,f=30MHz–62–50–48–47dBcminB3rd-HarmonicVO=1.
4VPP,f=30MHz–47–40–35–33dBcminBInputVoltageNoiseBaseInput,f>100kHz4.
66.
26.
97.
4nV/√HzmaxBInputCurrentNoiseBaseInput,f>100kHz2.
53.
13.
63.
9pA/√HzmaxBInputCurrentNoiseEmitterInput,f>100kHz21232527pA/√HzmaxBDCPERFORMANCE(OTA)SeeFigure37bTransconductance(V-basetoI-collector)VB=±5mVPP,RC=0,RE=072656358mA/VminAB-InputOffsetVoltageVB=0V,RC=0V,RE=100±4±40±47±50mVmaxAB-InputOffsetVoltageDriftVB=0V,RC=0V,RE=100±160±160μV/°CmaxBB-InputBiasCurrentVB=0V,RC=0V,RE=100±0.
5±0.
9±1.
5±1.
7μAmaxAB-InputBiasCurrentDriftVB=0V,RC=0V,RE=100±12±12nA/°CmaxBE-InputBiasCurrentVB=0V,VC=0V±35±110±120±135μAminAE-InputBiasCurrentDriftVB=0V,VC=0V±200±250nA/°CmaxBC-OutputBiasCurrentVB=0V,VC=0V±35±100±110±125μAmaxAC-OutputBiasCurrentVB=0V,VC=0V±200±250nA/°CmaxBINPUT(OTABase)SeeFigure37bInputVoltageRangeRE=100±3.
4±3.
2±3.
1±3.
0VminBInputImpedanceB-Input7||1.
5M||pFtypCOTAPower-SupplyRejectionRatio±VStoVIOatE-Input54494746dBminA(–PSRR)OUTPUT(OTACollector)SeeFigure37bOutputVoltageComplianceIE=2mA±3.
5±3.
4±3.
4±3.
4VminAOutputCurrentVC=0V±20±18±17±17mAminAOutputImpedanceVC=0V1.
2||2M||pFtypCCOMPARATORPERFORMANCEACPerformanceOutputCurrentBandwidthIOcom.
SBOS299E–FEBRUARY2004–REVISEDSEPTEMBER2009ELECTRICALCHARACTERISTICS:VS=±5V(continued)RL=100,RQ=300,andRIN=50,unlessotherwisenoted.
OPA615ID,OPA615IDGSTYPMIN/MAXOVERTEMPERATURE0°Cto–40°CtoMIN/TESTPARAMETERCONDITIONS+25°C+25°C(2)70°C(3)+85°C(3)UNITMAXLEVEL(1)DCPerformanceInputBiasCurrentS/HIn+=S/HIn–=0V±1±3±3.
5±4.
0μAmaxAOutputOffsetCurrentS/HIn+=S/HIn–=0V,TrackMode±10±50±70±80μAmaxAInputImpedanceS/HIn+andS/HIn–200||1.
2k||pFtypCInputDifferentialVoltageRangeS/HIn+–S/HIn–±3.
0VtypCInputCommon-ModeVoltageRangeS/HIn+andS/HIn–±3.
2VtypCCommon-ModeRejectionRatio(CMRR)±2±50±55±60μA/VmaxAOutputVoltageComplianceCHOLDPin±3.
5VtypCOutputCurrentCHOLDPin±5±3±2.
5±2.
0mAminAOutputImpedanceCHOLDPin0.
5||1.
2M||pFtypCTransconductanceS/HIn+–S/HIn–toCHOLDCurrent35212019mA/VminAVIN=300mVPPMinimumHoldLogicHighVoltageTrackingHigh222VmaxAMaximumHoldLogicLowVoltageHoldingLow0.
80.
80.
8VminALogicHighInputCurrentVHOLD=+5V±0.
5±1±1±1.
2μAmaxALogicLowInputCurrentVHOLD=0V140200220230μAmaxAComparatorPower-SupplyRejectionS/HIn+=S/HIn–=0V,TrackMode±2±50±55±60μA/VmaxARatio(PSRR)POWERSUPPLYSpecifiedOperatingVoltage±5VtypCMinimumOperatingVoltage±4±4±4VminBMaximumOperatingVoltage±6.
2±6.
2±6.
2VmaxAMaximumQuiescentCurrentRQ=300(4)13141617mAmaxAMinimumQuiescentCurrentRQ=300(4)1312119mAminATHERMALCHARACTERISTICSSpecifiedOperatingRangeDPackage–40to+85°CtypCThermalResistanceθJAJunction-to-AmbientDGSMSOP-10125°C/WtypCDSO-14100°C/WtypC(4)SO-14packageonly.
Copyright2004–2009,TexasInstrumentsIncorporatedSubmitDocumentationFeedback5ProductFolderLink(s):OPA615OPA615SBOS299E–FEBRUARY2004–REVISEDSEPTEMBER2009.
www.
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comTYPICALCHARACTERISTICSTA=+25°CandIQ=13mA,unlessotherwisenoted.
OTAOTATRANSCONDUCTANCEvsFREQUENCYOTATRANSCONDUCTANCEvsQUIESCENTCURRENTFigure1.
Figure2.
OTATRANSCONDUCTANCEvsINPUTVOLTAGEOTATRANSFERCHARACTERISTICSFigure3.
Figure4.
OTA-CSMALLSIGNALPULSERESPONSEOTA-CLARGESIGNALPULSERESPONSEFigure5.
Figure6.
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SBOS299E–FEBRUARY2004–REVISEDSEPTEMBER2009TYPICALCHARACTERISTICS(continued)TA=+25°CandIQ=13mA,unlessotherwisenoted.
OTAB-INPUTRESISTANCEvsQUIESCENTCURRENTOTAC-OUTPUTRESISTANCEvsQUIESCENTCURRENTFigure7.
Figure8.
OTAE-OUTPUTRESISTANCEvsQUIESCENTCURRENTOTAINPUTVOLTAGEANDCURRENTNOISEDENSITYFigure9.
Figure10.
OTAB-INPUTOFFSETVOLTAGEANDBIASCURRENTvsTEMPERATUREOTATRANSFERCHARACTERISTICSvsINPUTVOLTAGEFigure11.
Figure12.
Copyright2004–2009,TexasInstrumentsIncorporatedSubmitDocumentationFeedback7ProductFolderLink(s):OPA615OPA615SBOS299E–FEBRUARY2004–REVISEDSEPTEMBER2009.
www.
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comTYPICALCHARACTERISTICS(continued)TA=+25°CandIQ=13mA,unlessotherwisenoted.
OTA-EOUTPUTFREQUENCYRESPONSEOTA-EOUTPUTPULSERESPONSEFigure13.
Figure14.
OTA-COUTPUTFREQUENCYRESPONSEOTA-EOUTPUTHARMONICDISTORTIONvsFREQUENCYFigure15.
Figure16.
OTA-COUTPUTHARMONICDISTORTIONvsFREQUENCYOTAQUIESCENTCURRENTvsRQFigure17.
Figure18.
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SBOS299E–FEBRUARY2004–REVISEDSEPTEMBER2009TYPICALCHARACTERISTICS(continued)TA=+25°CandIQ=13mA,unlessotherwisenoted.
SOTA(SamplingOperationalTransconductanceAmplifier)SOTATRANSCONDUCTANCEvsFREQUENCYSOTATRANSCONDUCTANCEvsQUIESCENTCURRENTFigure19.
Figure20.
SOTATRANSCONDUCTANCEvsINPUTVOLTAGESOTATRANSFERCHARACTERISTICSFigure21.
Figure22.
SOTAPULSERESPONSESOTAPULSERESPONSEFigure23.
Figure24.
Copyright2004–2009,TexasInstrumentsIncorporatedSubmitDocumentationFeedback9ProductFolderLink(s):OPA615OPA615SBOS299E–FEBRUARY2004–REVISEDSEPTEMBER2009.
www.
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comTYPICALCHARACTERISTICS(continued)TA=+25°CandIQ=13mA,unlessotherwisenoted.
SOTAPROPAGATIONDELAYvsOVERDRIVESOTAPROPAGATIONDELAYvsTEMPERATUREFigure25.
Figure26.
SOTAPROPAGATIONDELAYvsSLEWRATESOTASWITCHINGTRANSIENTSFigure27.
Figure28.
SOTAHOLDCOMMANDDELAYTIMESOTABANDWIDTHvsOUTPUTCURRENTSWINGFigure29.
Figure30.
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SBOS299E–FEBRUARY2004–REVISEDSEPTEMBER2009TYPICALCHARACTERISTICS(continued)TA=+25°CandIQ=13mA,unlessotherwisenoted.
SOTAFEEDTHROUGHREJECTIONvsFREQUENCYSOTACOMMON-MODEREJECTIONvsFREQUENCYFigure31.
Figure32.
SOTAINPUTBIASCURRENTvsTEMPERATURESOTAOUTPUTBIASCURRENTvsTEMPERATUREFigure33.
Figure34.
Copyright2004–2009,TexasInstrumentsIncorporatedSubmitDocumentationFeedback11ProductFolderLink(s):OPA615OPA615SBOS299E–FEBRUARY2004–REVISEDSEPTEMBER2009.
www.
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comDISCUSSIONOFPERFORMANCETheOPA615,whichcontainsawidebandOperationalOPERATIONALTRANSCONDUCTANCETransconductanceAmplifier(OTA)andafastAMPLIFIER(OTA)SECTIONsamplingcomparator(SOTA),representsacompletesubsystemforveryfastandpreciseDCrestoration,OVERVIEWoffsetclampingandcorrectiontoGNDortoanadjustablereferencevoltage,andlowfrequencyhumThesymbolfortheOTAsectionissimilartothatofasuppressionofwidebandoperationalorbufferbipolartransistor,andtheself-biasedOTAcanbeamplifiers.
viewedaseitheraquasi-idealtransistororasavoltage-controlledcurrentsource.
ApplicationcircuitsAlthoughtheICwasdesignedtoimproveorstabilizefortheOTAlookandoperatemuchliketransistortheperformanceofcomplex,widebandvideosignals,circuits—thebipolartransistorisalsoaitcanalsobeusedasasample-and-holdamplifier,voltage-controlledcurrentsource.
Likeatransistor,ithigh-speedintegrator,peakdetectorfornanosecondhasthreeterminals:ahigh-impedanceinput(base)pulses,oraspartofacorrelateddoublesamplingoptimizedforalowinputbiascurrentof0.
3μA,asystem.
AwidebandOperationalTransconductancelow-impedanceinput/output(emitter),andtheAmplifier(OTA)withahigh-impedancecascodehigh-impedancecurrentoutput(collector).
currentsourceoutputandafastandprecisesamplingcomparatorsetsanewstandardforTheOTAconsistsofacomplementarybufferhigh-speedsamplingapplications.
amplifierandasubsequentcomplementarycurrentmirror.
ThebufferamplifierfeaturesaDarlingtonBoththeOTAandthesamplingcomparatorcanbeoutputstageandthecurrentmirrorhasacascodedusedasstand-alonecircuitsorcombinedtocreateoutput.
Theadditionofthiscascodecircuitrymorecomplexsignalprocessingstagessuchasincreasesthecurrentsourceoutputresistancetosample-and-holdamplifiers.
TheOPA615simplifies1.
2M.
ThisfeatureimprovestheOTAlinearityandthedesignofinputamplifierswithhighhumdrivecapabilities.
Anybipolarinputvoltageatthesuppression;clampingorDC-restorationstagesinhighimpedancebasehasthesamepolarityandprofessionalbroadcastequipment,high-resolutionsignallevelatthelowimpedancebufferoremitterCADmonitorsandinformationterminals;andsignaloutput.
Fortheopen-loopdiagrams,theemitterisprocessingstagesfortheenergyandpeakvalueofconnectedtoGND;thecollectorcurrentisthennanosecondspulses.
Thisdevicealsoeasesthedeterminedbythevoltagebetweenbaseandemitterdesignofhigh-speeddataacquisitionsystemsbehindtimesthetransconductance.
InapplicationcircuitsaCCDsensororinfrontofananalog-to-digital(Figure36b),aresistorREbetweentheemitterandconverter(ADC).
GNDisusedtosettheOTAtransfercharacteristics.
AnexternalresistorontheSO-14package,RQ,Thefollowingformulasdescribethemostimportantallowstheusertosetthequiescentcurrent.
RQisrelationships.
reistheoutputimpedanceofthebufferconnectedfromPin1(IQadjust)to–VCC.
Itamplifier(emitter)orthereciprocaloftheOTAdeterminestheoperatingcurrentsoftheOTAsectiontransconductance.
Above±5mA,thecollectorcurrent,andcontrolsthebandwidthandACbehavioraswellIC,willbeslightlylessthanindicatedbytheformula.
asthetransconductanceoftheOTA.
Besidesthequiescentcurrentsettingfeature,a(1)Proportional-to-Absolute-Temperature(PTAT)supplycurrentcontrolwillincreasethequiescentcurrentTheREresistormaybebypassedbyarelativelylargeversustemperature.
ThisvariationholdsthecapacitortomaintainhighACgain.
Theparalleltransconductance(gm)oftheOTAandcomparatorcombinationofREandthislargecapacitorformarelativelyconstantversustemperature.
Thecircuithigh-passfilter,enhancingthehighfrequencygain.
parameterslistedinthespecificationtableareOthercasesmayrequireanRCcompensationmeasuredwithRQsetto300,givinganominalnetworkinparalleltoREtooptimizethequiescentcurrentat13mA.
Whilenotalwaysshownhigh-frequencyresponse.
Thelarge-signalbandwidthintheapplicationcircuits,thisRQ=300isrequired(VO=1.
4VPP)measuredattheemitterachievestogetthe13mAquiescentoperatingcurrent.
770MHz.
ThefrequencyresponseofthecollectorisdirectlyrelatedtotheresistorvaluebetweenthecollectorandGND;itdecreaseswithincreasingresistorvalues,becauseofthelow-passfilterformedwiththeOTAC-outputcapacitance.
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SBOS299E–FEBRUARY2004–REVISEDSEPTEMBER2009Figure35showsasimplifiedblockdiagramoftheWhiletheOTAfunctionandlabelingappearsimilartoOPA615OTA.
Boththeemitterandthecollectorthoseofatransistor,itoffersessentialdistinctiveoutputsofferadrivecapabilityof±20mAfordrivingdifferencesandimprovements:1)Thecollectorlowimpedanceloads.
TheemitteroutputisnotcurrentflowsoutoftheCterminalforapositivecurrent-limitedorprotected.
MomentaryshortstoB-to-Einputvoltageandintoitfornegativevoltages;GNDshouldbeavoided,butareunlikelytocause2)Acommonemitteramplifieroperatesinpermanentdamage.
non-invertingmodewhilethecommonbaseoperatesininvertingmode;3)TheOTAisfarmorelinearthanabipolartransistor;4)Thetransconductancecanbeadjustedwithanexternalresistor;5)AsaresultofthePTATbiasingcharacteristic,thequiescentcurrentincreasesasshowninthetypicalperformancecurvevstemperatureandkeepstheACperformanceconstant;6)TheOTAisself-biasedandbipolar;and7)Theoutputcurrentisapproximatelyzeroforzerodifferentialinputvoltages.
ACinputscenteredonzeroproduceanoutputcurrentcenteredonzero.
BASICAPPLICATIONCIRCUITSMostapplicationcircuitsfortheOTAsectionconsistofafewbasictypeswhicharebestunderstoodbyanalogytodiscretetransistorcircuits.
Justasthetransistorhasthreebasicoperatingmodes—commonemitter,commonbase,andcommoncollector—theOTAhasthreeequivalentoperatingmodes;common-E,common-B,andcommon-C(seeFigure36,Figure37andFigure38).
Figure36showstheOTAconnectedasaCommon-Eamplifier,whichisequivalenttoacommonemittertransistoramplifier.
Inputandoutputcanbeground-referencedwithoutanybiasing.
TheamplifierisnoninvertingbecauseaFigure35.
SimplifiedOTABlockDiagramcurrentflowingoutoftheemitterwillalsoflowoutofthecollectorasaresultofthecurrentmirrorshowninFigure35.
Figure36.
a)CommonEmitterAmplifierUsingaDiscreteTransistor;b)Common-EAmplifierUsingtheOTAPortionoftheOPA615Copyright2004–2009,TexasInstrumentsIncorporatedSubmitDocumentationFeedback13ProductFolderLink(s):OPA615OPA615SBOS299E–FEBRUARY2004–REVISEDSEPTEMBER2009.
www.
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comFigure37showstheCommon-Camplifier.
ItFigure38showstheCommon-Bamplifier.
Thisconstitutesanopen-loopbufferwithlowoffsetconfigurationproducesaninvertinggain,andthevoltage.
Itsgainisapproximately1andwillvarywithinputislow-impedance.
Whenahighimpedancetheload.
inputisneeded,itcanbecreatedbyinsertingabufferamplifier(suchastheBUF602)inseries.
Figure37.
a)CommonCollectorAmplifierUsingaDiscreteTransistor;b)Common-CAmplifierUsingtheOTAPortionoftheOPA615Figure38.
a)CommonBaseAmplifierUsingaDiscreteTransistor;b)Common-BAmplifierUsingtheOTAPortionoftheOPA61514SubmitDocumentationFeedbackCopyright2004–2009,TexasInstrumentsIncorporatedProductFolderLink(s):OPA615OPA615www.
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SBOS299E–FEBRUARY2004–REVISEDSEPTEMBER2009SAMPLINGCOMPARATORTheadditionaloffsetvoltageorswitchingtransientinducedonacapacitoratthecurrentsourceoutputTheOPA615samplingcomparatorfeaturesaverybytheswitchingchargecanbedeterminedbytheshortswitching(2.
5ns)propagationdelayandutilizesfollowingformula:anewswitchingcircuitarchitecturetoachieveexcellentspeedandprecision.
(2)Itprovideshighimpedanceinvertingandnoninvertinganaloginputs,ahigh-impedancecurrentsourceTheswitchingstageinputisinsensitivetothelowoutputandaTTL-CMOS-compatibleHoldControlslewrateperformanceoftheholdcontrolcommandInput.
andcompatiblewithTTL/CMOSlogiclevels.
WithTTLlogichigh,thecomparatorisactive,comparingThesamplingcomparatorconsistsofanoperationalthetwoinputvoltagesandvaryingtheoutputcurrenttransconductanceamplifier(OTA),abufferamplifier,accordingly.
WithTTLlogiclow,thecomparatorandasubsequentswitchingcircuit.
Thiscombinationoutputisswitchedoff,showingaveryhighissubsequentlyreferredtoastheSamplingimpedancetotheholdcapacitor.
OperationalTransconductanceAmplifier(SOTA).
TheOTAandbufferamplifieraredirectlytiedtogetheratDESIGN-INTOOLSthebufferoutputstoprovidethetwoidenticalhigh-impedanceinputsandhighopen-loopDemonstrationFixturetransconductance.
EvenasmalldifferentialinputvoltagemultipliedwiththehightransconductanceTwoprintedcircuitboards(PCBs)areavailabletoresultsinanoutputcurrent—positiveorassistintheinitialevaluationofcircuitperformancenegative—dependingupontheinputpolarity.
ThisusingtheOPA615.
ThedemonstrationfixtureischaracteristicissimilartotheloworhighstatusofaofferedfreeofchargeasanunpopulatedPCB,conventionalcomparator.
Thecurrentsourceoutputdeliveredwithauser'sguide.
Thesummaryfeatureshighoutputimpedance,outputbiascurrentinformationforthisfixtureisshowninTable2.
compensation,andisoptimizedforchargingacapacitorinDCrestoration,nanosecondintegrators,Table2.
OPA615DemonstrationFixturespeakdetectorsandS/Hcircuits.
ThetypicalORDERINGLITERATUREcomparatoroutputcurrentis±5mAandtheoutputPRODUCTPACKAGENUMBERNUMBERbiascurrentisminimizedtotypically±10μAintheOPA615IDSO-14DEM-OPA-SO-1CSBOU039samplingmode.
OPA615IDGSMSOP-10DEM-OPA-MSOP-1ASBOU042Thisinnovativecircuitachievesthehighslewraterepresentativeofanopen-loopdesign.
Inaddition,ThedemonstrationfixturecanberequestedatthetheacquisitionslewcurrentforaholdorstorageTexasInstrumentswebsite(www.
ti.
com)throughthecapacitorishigherthanstandarddiodebridgeandOPA615productfolder.
switchconfigurations,removingamaincontributortothelimitsofmaximumsamplingrateandinputMacromodelandApplicationsSupportfrequency.
ComputersimulationofcircuitperformanceusingTheswitchingcircuitsintheOPA615usecurrentSPICEisoftenaquickwaytoanalyzethesteering(versusvoltageswitching)toprovideperformanceofanalogcircuitsandsystems.
ThisisimprovedisolationbetweentheswitchandanalogparticularlytrueforvideoandRFamplifiercircuitssections.
Thisdesignresultsinlowaperturetimewhereparasiticcapacitanceandinductancecanhavesensitivitytotheanaloginputsignal,reducedpoweramajoreffectoncircuitperformance.
ASPICEmodelsupplyandanalogswitchingnoise.
Sample-to-holdfortheOPA615isavailablethroughtheTIwebpagepeakswitchingchargeinjectionis40fC.
(www.
ti.
com).
Thismodelpredictstypicalsmall-signalAC,transientsteps,DCperformance,andnoiseunderawidevarietyofoperatingconditions.
Themodelincludesthenoisetermsfoundintheelectricalspecificationsofthedatasheet.
However,themodeldoesnotattempttodistinguishbetweenpackagetypesintheirsmall-signalACperformance.
Theapplicationsdepartmentisalsoavailablefordesignassistance.
Copyright2004–2009,TexasInstrumentsIncorporatedSubmitDocumentationFeedback15ProductFolderLink(s):OPA615OPA615SBOS299E–FEBRUARY2004–REVISEDSEPTEMBER2009.
www.
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comAPPLICATIONINFORMATIONTheOPA615operatesfrom±5VpowersuppliesPower-supplybypasscapacitorsshouldbelocatedas(±6.
2Vmaximum).
Absolutemaximumis±6.
5V.
Docloseaspossibletothedevicepins.
Solidtantalumnotattempttooperatewithlargerpowersupplycapacitorsaregenerallybest.
SeeBoardLayoutatvoltagesorpermanentdamagemayoccur.
theendoftheapplicationsdiscussionforfurthersuggestionsonlayout.
BASICCONNECTIONSFigure39showsthebasicconnectionsrequiredforoperation.
Theseconnectionsarenotshowninsubsequentcircuitdiagrams.
Figure39.
BasicConnections16SubmitDocumentationFeedbackCopyright2004–2009,TexasInstrumentsIncorporatedProductFolderLink(s):OPA615OPA615www.
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SBOS299E–FEBRUARY2004–REVISEDSEPTEMBER2009DC-RESTORESYSTEMFigure40andFigure41offertwopossibleDC-restoresystemsusingtheOPA615.
Figure41implementsaDC-restorefunctionasaunity-gainamplifier.
Ascanbeexpectedfromitsname,thisDC-restorecircuitdoesnotprovideanyamplification.
Inapplicationswheresomeamplificationisneeded,considerusingthecircuitdesignshowninFigure40.
Figure41.
DCRestorationofaBufferAmplifierForeitherofthesecircuitstooperateproperly,thesourceimpedanceneedstobelow,suchastheoneprovidedbytheoutputofaclosed-loopamplifierorbuffer.
ConsiderthevideoinputsignalshowninFigure42,andthecompleteDCrestorationsystemshowninFigure40.
ThissignalisamplifiedbytheOTAsectionoftheOPA615byagainof:Figure40.
CompleteDCRestorationSystemFigure42.
NTSCHorizontalScanLineCopyright2004–2009,TexasInstrumentsIncorporatedSubmitDocumentationFeedback17ProductFolderLink(s):OPA615OPA615SBOS299E–FEBRUARY2004–REVISEDSEPTEMBER2009.
www.
ti.
comTheDCrestorationisdonebytheSOTAsectionbyWhentheSOTAissampling,itischargingorsamplingtheoutputsignalatanappropriatetime.
dischargingtheCHOLDcapacitordependingontheThesampledsectionofthesignalisthencomparedleveloftheoutputsignalsampled.
ThedetailofantoareferencevoltagethatappearsontheappropriatetimingisillustratedinFigure43.
non-invertinginputoftheSOTA(pin10),orgroundinFigure40.
Figure43.
DC-RestoreTiming18SubmitDocumentationFeedbackCopyright2004–2009,TexasInstrumentsIncorporatedProductFolderLink(s):OPA615OPA615www.
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SBOS299E–FEBRUARY2004–REVISEDSEPTEMBER2009CLAMPEDVIDEO/RFAMPLIFIERTheexternalcapacitor(CHOLD)allowsforawiderangeofflexibility.
Bychoosingsmallvalues,theAnothercircuitexampleforthepreamplifierandthecircuitcanbeoptimizedforashortclampingperiodorclampcircuitisshowninFigure44.
Thepreamplifierwithhighvaluesforalowdrooprate.
Anotherusesthewideband,lownoiseOPA656,againadvantageofthiscircuitisthatsmallclamppeaksatconfiguredinagainof+2V/V.
Here,theOPA656hastheoutputoftheswitchingcomparatorareintegratedatypicalbandwidthof200MHzwithasettlingtimeofanddonotcauseglitchesinthesignalpath.
about21ns(0.
02%)andoffersalowbiascurrentJFETinputstage.
SAMPLE-AND-HOLDAMPLIFIERWithacontrolpropagationdelayof2.
5nsand730MHzbandwidth,theOPA615canbeusedadvantageouslyinahigh-speedsample-and-holdamplifier.
Figure45illustratesthisconfiguration.
Figure44.
ClampedVideo/RFAmplifierFigure45.
Sample-and-HoldAmplifierThevideosignalpassesthroughthecapacitorCB,ToillustratehowthedigitizationisrealizedintheblockingtheDCcomponent.
TorestoretheDClevelFigure45circuit,Figure46showsa100kHztothedesiredbaseline,theOPA615isused.
Thesinewavebeingsampledatarateof1MHz.
Theinvertinginput(pin11)isconnectedtoareferenceoutputsignalusedhereistheIOUToutputdrivingavoltage.
Duringthehightimeoftheclamppulse,the50load.
switchingcomparator(SOTA)willcomparetheoutputoftheopamptothereferencelevel.
Anyvoltagedifferencebetweenthosepinswillresultinanoutputcurrentthateitherchargesordischargestheholdcapacitor,CHOLD.
Thischargecreatesavoltageacrossthecapacitor,whichisbufferedbytheOTA.
Multipliedbythetransconductance,thevoltagewillcauseacurrentflowinthecollector,C,terminaloftheOTA.
Thiscurrentwilllevel-shifttheOPA656uptothepointwhereitsoutputvoltageisequaltothereferencevoltage.
Thislevel-shiftalsoclosesthecontrolloop.
Becauseofthebuffer,thevoltageacrosstheCHOLDstaysconstantandmaintainsthebaselinecorrectionduringtheoff-timeoftheclamppulse.
Figure46.
1MHzSample-and-Holdofa100kHzSineWaveCopyright2004–2009,TexasInstrumentsIncorporatedSubmitDocumentationFeedback19ProductFolderLink(s):OPA615OPA615SBOS299E–FEBRUARY2004–REVISEDSEPTEMBER2009.
www.
ti.
comIntegratorforns-PulsesPhaseDetectorforFastPLLSystemsTheintegratorforns-pulsesusingtheOPA615Figure49showsthecircuitforaphasedetectorfor(showninFigure47)makesuseofthefastfastPLLsystems.
GivenareferencepulsetrainfREFcomparatoranditscurrent-modeoutput.
PlacingtheandapulsetraininputsignalfINoutofphase,thehold-controlhigh,anarrowpulsechargestheSOTAoftheOPA615actsinthiscircuitasacapacitor,increasingtheaverageoutputvoltage.
Tocomparator,eitherchargingordischargingtheminimizeripplesattheinvertinginputandmaximizecapacitor.
ThisvoltageisthenbufferedbytheOTAthecapacitorcharge,aT-networkisusedintheandfedtotheVCO.
feedbackpath.
Figure47.
Integratorforns-PulsesFastPulsePeakDetectorAcircuitsimilartothatshowninFigure47(theintegratorforns-pulses)canbedevisedtodetectandisolatepositivepulsesfromnegativepulses.
Thiscircuit,showninFigure48,usestheOPA615aswellastheBUF602.
Thiscircuitmakesuseofdiodestoisolatethepositive-goingpulsesfromthenegative-goingpulsesandcharge-differentcapacitors.
Figure49.
PhaseDetectorForFastPLL-SystemsFigure48.
FastBipolarPeakDetector20SubmitDocumentationFeedbackCopyright2004–2009,TexasInstrumentsIncorporatedProductFolderLink(s):OPA615OPA615www.
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SBOS299E–FEBRUARY2004–REVISEDSEPTEMBER2009CORRELATEDDOUBLESAMPLERThesignalcomingfromtheCCDisappliedtothetwosample-and-holdamplifiers,withtheiroutputsNoiseisthelimitingfactorfortheresolutioninaCCDconnectedtothedifferenceamplifier.
Thetimingsystem,wherethekT/Cnoiseisdominant(seediagramclarifiestheoperation(seeFigure52).
AtFigure51).
Toreducethisnoise,imagingsystemstimet1,thesampleandhold(S/H1)goesintotheholduseacircuitcalledaCorrelatedDoubleSamplermode,takingasampleoftheresetlevelincludingthe(CDS).
Thenamecomesfromthedoublesamplingnoise.
Thisvoltage(VRESET)isappliedtothetechniqueoftheCCDchargesignal.
ACDSusingnoninvertinginputofthedifferenceamplifier.
AttimetwoOPA615sandoneOPA694isshownint2,thesample-and-hold(S/H2)willtakeasampleofFigure50.
Thefirstsample(S1)istakenattheendofthevideolevel,whichisVRESET–VVIDEO.
Theoutputtheresetperiod.
Whentheresetswitchopensagain,voltageofthedifferenceamplifierisdefinedbythetheeffectivenoisebandwidthchangesbecauseoftheequationVOUT=VIN+–VIN–.
ThesampleoftheresetlargedifferenceintheswitchRONandROFFvoltagecontainsthekT/Cnoise,whichiseliminatedresistance.
Thisdifferencecausesthedominatingbythesubtractionofthedifferenceamplifier.
kT/Cnoiseessentiallytofreezeinitslastpoint.
ThedoublesamplingtechniquealsoreducestheTheothersample(S2)istakenduringthevideowhitenoise.
Thewhitenoiseispartoftheresetportionofthesignal.
Ideally,thetwosamplesdiffervoltage(VRESET)aswellasofthevideoamplitudeonlybyavoltagecorrespondingtothetransferred(VRESET–VVIDEO).
Withtheassumptionthatthenoisechargesignal.
Thisisthevideolevelminusthenoiseofthenoiseofthesecondsamplewasunchanged(ΔV).
fromtheinstantofthefirstsample,thenoiseamplitudesarethesameandarecorrelatedintime.
TheCDSfunctionwilleliminatethekT/CnoiseasTherefore,thenoisecanbereducedbytheCDSwellasmuchofthe1/fandwhitenoise.
function.
Figure52isablockdiagramofaCDScircuit.
Twosample-and-holdamplifiersandonedifferenceamplifierconstitutethecorrelateddoublesampler.
Figure50.
CorrelatedDoubleSamplerCopyright2004–2009,TexasInstrumentsIncorporatedSubmitDocumentationFeedback21ProductFolderLink(s):OPA615OPA615SBOS299E–FEBRUARY2004–REVISEDSEPTEMBER2009.
www.
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comFigure51.
ImprovingSNRwithCorrelatedDoubleSamplingFigure52.
CDS:CircuitConcept22SubmitDocumentationFeedbackCopyright2004–2009,TexasInstrumentsIncorporatedProductFolderLink(s):OPA615OPA615www.
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SBOS299E–FEBRUARY2004–REVISEDSEPTEMBER2009BOARDLAYOUTGUIDELINESd)ConnectionstootherwidebanddevicesontheboardmaybemadewithshortdirecttracesorAchievingoptimumperformancewithahigh-throughonboardtransmissionlines.
ForshortfrequencyamplifiersuchastheOPA615requiresconnections,considerthetraceandtheinputtothecarefulattentiontoprintedcircuitboard(PCB)layoutnextdeviceasalumpedcapacitiveload.
Relativelyparasiticsandexternalcomponenttypes.
widetraces(50milsto100mils)shouldbeused,Recommendationsthatwilloptimizeperformancepreferablywithgroundandpowerplanesopenedupinclude:aroundthem.
a)MinimizeparasiticcapacitancetoanyACe)Socketingahigh-speedpartsuchasthegroundforallofthesignalI/Opins.
ParasiticOPA615isnotrecommended.
Theadditionalleadcapacitanceontheoutputandinvertinginputpinslengthandpin-to-pincapacitanceintroducedbythecancauseinstability;onthenon-invertinginput,itcansocketcancreateanextremelytroublesomeparasiticreactwiththesourceimpedancetocausenetworkwhichcanmakeitalmostimpossibletounintentionalbandlimiting.
Toreduceunwantedachieveasmooth,stablefrequencyresponse.
Bestcapacitance,awindowaroundthesignalI/OpinsresultsareobtainedbysolderingtheOPA615directlyshouldbeopenedinallofthegroundandpowerontothePCB.
planesaroundthosepins.
Otherwise,groundandpowerplanesshouldbeunbrokenelsewhereontheINPUTANDESDPROTECTIONboard.
TheOPA615isbuiltusingaveryhigh-speed,b)Minimizethedistance(complementarybipolarprocess.
Theinternaljunctionsupplypinstohighfrequency0.
1μFdecouplingbreakdownvoltagesarerelativelylowfortheseverycapacitors.
Atthedevicepins,thegroundandpowersmallgeometrydevices.
ThesebreakdownsareplanelayoutshouldnotbeincloseproximitytothereflectedintheAbsoluteMaximumRatingstablesignalI/Opins.
Avoidnarrowpowerandgroundwhereanabsolutemaximum±6.
5Vsupplyistracestominimizeinductancebetweenthepinsandreported.
AlldevicepinshavelimitedESDprotectionthedecouplingcapacitors.
Thepower-supplyusinginternaldiodestothepowersupplies,asshownconnectionsshouldalwaysbedecoupledwiththeseinFigure53.
capacitors.
Anoptionalsupply-decouplingcapacitoracrossthetwopowersupplies(forbipolaroperation)willimprove2nd-harmonicdistortionperformance.
Larger(2.
2μFto6.
8μF)decouplingcapacitors,effectiveatalowerfrequency,shouldalsobeusedonthemainsupplypins.
ThesemaybeplacedsomewhatfartherfromthedeviceandmaybesharedamongseveraldevicesinthesameareaofthePCB.
c)CarefulselectionandplacementofexternalcomponentswillpreservethehighfrequencyperformanceoftheOPA615.
Resistorsshouldbeaverylowreactancetype.
Surface-mountresistorsFigure53.
InternalESDProtectionworkbestandallowatighteroveralllayout.
Metal-filmandcarboncomposition,axially-leadedresistorscanThesediodesalsoprovidemoderateprotectiontoalsoprovidegoodhighfrequencyperformance.
inputoverdrivevoltagesabovethesupplies.
TheAgain,keeptheseleadsandPCBtracelengthasprotectiondiodescantypicallysupport30mAshortaspossible.
Neverusewirewound-typecontinuouscurrent.
Wherehighercurrentsareresistorsinahighfrequencyapplication.
Otherpossible(forexample,insystemswith±15Vsupplynetworkcomponents,suchasnoninvertinginputpartsdrivingintotheOPA615),current-limitingseriesterminationresistors,shouldalsobeplacedclosetoresistorsshouldbeaddedintothetwoinputs.
Keepthepackage.
theseresistorvaluesaslowaspossiblesincehighvaluesdegradebothnoiseperformanceandfrequencyresponse.
Copyright2004–2009,TexasInstrumentsIncorporatedSubmitDocumentationFeedback23ProductFolderLink(s):OPA615OPA615SBOS299E–FEBRUARY2004–REVISEDSEPTEMBER2009.
www.
ti.
comREVISIONHISTORYNOTE:Pagenumbersforpreviousrevisionsmaydifferfrompagenumbersinthecurrentversion.
ChangesfromRevisionD(August2008)toRevisionEPageCorrectedy-axistitleofFigure2510ChangesfromRevisionC(October2006)toRevisionDPageChangedratingforstoragetemperaturerangeinAbsoluteMaximumRatingstablefrom–40°Cto+125°Cto–65°Cto+125°C2ClarifiedholdcontrolpinvoltageratinginAbsoluteMaximumRatingstable224SubmitDocumentationFeedbackCopyright2004–2009,TexasInstrumentsIncorporatedProductFolderLink(s):OPA615PACKAGEOPTIONADDENDUMwww.
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com10-Dec-2020Addendum-Page1PACKAGINGINFORMATIONOrderableDeviceStatus(1)PackageTypePackageDrawingPinsPackageQtyEcoPlan(2)Leadfinish/Ballmaterial(6)MSLPeakTemp(3)OpTemp(°C)DeviceMarking(4/5)SamplesOPA615IDACTIVESOICD1450RoHS&GreenNIPDAULevel-2-260C-1YEAR-40to85OPA615IDOPA615IDGSRACTIVEVSSOPDGS102500RoHS&GreenNIPDAUAGLevel-2-260C-1YEAR-40to85BJTOPA615IDGSTACTIVEVSSOPDGS10250RoHS&GreenNIPDAUAGLevel-2-260C-1YEAR-40to85BJTOPA615IDRACTIVESOICD142500RoHS&GreenNIPDAULevel-2-260C-1YEAR-40to85OPA615ID(1)Themarketingstatusvaluesaredefinedasfollows:ACTIVE:Productdevicerecommendedfornewdesigns.
LIFEBUY:TIhasannouncedthatthedevicewillbediscontinued,andalifetime-buyperiodisineffect.
NRND:Notrecommendedfornewdesigns.
Deviceisinproductiontosupportexistingcustomers,butTIdoesnotrecommendusingthispartinanewdesign.
PREVIEW:Devicehasbeenannouncedbutisnotinproduction.
Samplesmayormaynotbeavailable.
OBSOLETE:TIhasdiscontinuedtheproductionofthedevice.
(2)RoHS:TIdefines"RoHS"tomeansemiconductorproductsthatarecompliantwiththecurrentEURoHSrequirementsforall10RoHSsubstances,includingtherequirementthatRoHSsubstancedonotexceed0.
1%byweightinhomogeneousmaterials.
Wheredesignedtobesolderedathightemperatures,"RoHS"productsaresuitableforuseinspecifiedlead-freeprocesses.
TImayreferencethesetypesofproductsas"Pb-Free".
RoHSExempt:TIdefines"RoHSExempt"tomeanproductsthatcontainleadbutarecompliantwithEURoHSpursuanttoaspecificEURoHSexemption.
Green:TIdefines"Green"tomeanthecontentofChlorine(Cl)andBromine(Br)basedflameretardantsmeetJS709BlowhalogenrequirementsofcombinedrepresenttheentireDeviceMarkingforthatdevice.
(6)Leadfinish/Ballmaterial-OrderableDevicesmayhavemultiplematerialfinishoptions.
Finishoptionsareseparatedbyaverticalruledline.
Leadfinish/Ballmaterialvaluesmaywraptotwolinesifthefinishvalueexceedsthemaximumcolumnwidth.
ImportantInformationandDisclaimer:TheinformationprovidedonthispagerepresentsTI'sknowledgeandbeliefasofthedatethatitisprovided.
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TAPEANDREELINFORMATION*AlldimensionsarenominalDevicePackageTypePackageDrawingPinsSPQReelDiameter(mm)ReelWidthW1(mm)A0(mm)B0(mm)K0(mm)P1(mm)W(mm)Pin1QuadrantOPA615IDGSRVSSOPDGS102500330.
012.
45.
33.
41.
48.
012.
0Q1OPA615IDGSTVSSOPDGS10250180.
012.
45.
33.
41.
48.
012.
0Q1OPA615IDRSOICD142500330.
016.
46.
59.
02.
18.
016.
0Q1PACKAGEMATERIALSINFORMATIONwww.
ti.
com30-Dec-2020PackMaterials-Page1*AlldimensionsarenominalDevicePackageTypePackageDrawingPinsSPQLength(mm)Width(mm)Height(mm)OPA615IDGSRVSSOPDGS102500853.
0449.
035.
0OPA615IDGSTVSSOPDGS10250210.
0185.
035.
0OPA615IDRSOICD142500853.
0449.
035.
0PACKAGEMATERIALSINFORMATIONwww.
ti.
com30-Dec-2020PackMaterials-Page2www.
ti.
comPACKAGEOUTLINECTYP5.
054.
751.
1MAX8X0.
510X0.
270.
172X20.
150.
05TYP0.
230.
130-80.
25GAGEPLANE0.
70.
4ANOTE33.
12.
9BNOTE43.
12.
94221984/A05/2015VSSOP-1.
1mmmaxheightDGS0010ASMALLOUTLINEPACKAGENOTES:1.
Alllineardimensionsareinmillimeters.
Anydimensionsinparenthesisareforreferenceonly.
DimensioningandtolerancingperASMEY14.
5M.
2.
Thisdrawingissubjecttochangewithoutnotice.
3.
Thisdimensiondoesnotincludemoldflash,protrusions,orgateburrs.
Moldflash,protrusions,orgateburrsshallnotexceed0.
15mmperside.
4.
Thisdimensiondoesnotincludeinterleadflash.
Interleadflashshallnotexceed0.
25mmperside.
5.
ReferenceJEDECregistrationMO-187,variationBA.
1100.
1CAB65PIN1IDAREASEATINGPLANE0.
1CSEEDETAILADETAILATYPICALSCALE3.
200www.
ti.
comEXAMPLEBOARDLAYOUT(4.
4)0.
05MAXALLAROUND0.
05MINALLAROUND10X(1.
45)10X(0.
3)8X(0.
5)(R)TYP0.
054221984/A05/2015VSSOP-1.
1mmmaxheightDGS0010ASMALLOUTLINEPACKAGESYMMSYMMLANDPATTERNEXAMPLESCALE:10X15610NOTES:(continued)6.
PublicationIPC-7351mayhavealternatedesigns.
7.
Soldermasktolerancesbetweenandaroundsignalpadscanvarybasedonboardfabricationsite.
METALSOLDERMASKOPENINGNONSOLDERMASKDEFINEDSOLDERMASKDETAILSNOTTOSCALESOLDERMASKOPENINGMETALUNDERSOLDERMASKSOLDERMASKDEFINEDwww.
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comEXAMPLESTENCILDESIGN(4.
4)8X(0.
5)10X(0.
3)10X(1.
45)(R)TYP0.
054221984/A05/2015VSSOP-1.
1mmmaxheightDGS0010ASMALLOUTLINEPACKAGENOTES:(continued)8.
Lasercuttingapertureswithtrapezoidalwallsandroundedcornersmayofferbetterpasterelease.
IPC-7525mayhavealternatedesignrecommendations.
9.
Boardassemblysitemayhavedifferentrecommendationsforstencildesign.
SYMMSYMM15610SOLDERPASTEEXAMPLEBASEDON0.
125mmTHICKSTENCILSCALE:10XIMPORTANTNOTICEANDDISCLAIMERTIPROVIDESTECHNICALANDRELIABILITYDATA(INCLUDINGDATASHEETS),DESIGNRESOURCES(INCLUDINGREFERENCEDESIGNS),APPLICATIONOROTHERDESIGNADVICE,WEBTOOLS,SAFETYINFORMATION,ANDOTHERRESOURCES"ASIS"ANDWITHALLFAULTS,ANDDISCLAIMSALLWARRANTIES,EXPRESSANDIMPLIED,INCLUDINGWITHOUTLIMITATIONANYIMPLIEDWARRANTIESOFMERCHANTABILITY,FITNESSFORAPARTICULARPURPOSEORNON-INFRINGEMENTOFTHIRDPARTYINTELLECTUALPROPERTYRIGHTS.
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