LM2901EP TI | Alldatasheet
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www.ti.com SNOSAF6B –JANUARY 2005–REVISED APRIL 2013 LM2901EPLowPowerLowOffsetVoltageQuadComparators Check forSamples: LM2901EP 1FEATURES DESCRIPTION The LM2901EP consists of four independent 2• Wide Supply VoltageRange precisionvoltagecomparatorswithan offsetvoltage• LM2901: 2 to36 VDC or ±1 to±18 VDC specificationas low as 2 mV max for allfour
- Very Low Supply CurrentDrain(0.8mA) — comparators.These were designed specificallyto IndependentofSupply Voltage operatefroma singlepower supplyovera widerange of voltages.Operationfrom splitpower suppliesis• Low InputBiasingCurrent:25 nA alsopossibleand thelow power supplycurrentdrain• Low InputOffsetCurrent:±5 nA isindependentofthemagnitudeofthepower supply
- OffsetVoltage:±3 mV voltage. This comparator also has a unique characteristicinthattheinputcommon-mode voltage• InputCommon-Mode VoltageRange Includes range includesground,even thoughoperatedfrom aGND singlepower supplyvoltage.• DifferentialInputVoltageRange Equal tothe Applicationareas includelimitcomparators,simplePower Supply Voltage analogto digitalconverters;pulse,squarewave and• Low outputsaturationvoltage:250 mV at4 mA timedelaygenerators;wide range VCO; MOS clock
- Output VoltageCompatible withTTL, DTL, timers;multivibratorsand high voltagedigitallogic ECL, MOS and CMOS Logic Systems gates. The LM2901EP was designed to directly interfacewithTTL and CMOS. When operatedfrom both plusand minus power supplies,itwilldirectlyADVANTAGES interfacewithMOS logic— where thelow power drain• High PrecisionComparator of the LM2901EP is a distinctadvantage over
- Reduced VOS DriftOver Temperature standardcomparators.
- EliminatesNeed forDual Supplies ENHANCED PLASTIC
- Allows Sensing Near GND • Extended TemperaturePerformanceof −40°C to
- Compatible withallForms ofLogic +85°C
- BaselineControl-SingleFab & Assembly Site• Power DrainSuitableforBatteryOperation
- ProcessChange Notification(PCN) APPLICATIONS • Qualification& ReliabilityData
- Solder(PbSn)Lead Finishisstandard• SelectedMilitaryApplications
- Enhanced DiminishingManufacturingSources• SelectedAvionicsApplications (DMS) Support Pleasebe aware thatan importantnoticeconcerningavailability,standardwarranty,and use incriticalapplicationsof Texas Instrumentssemiconductorproductsand disclaimerstheretoappearsattheend ofthisdatasheet. 2Alltrademarksarethepropertyoftheirrespectiveowners. PRODUCTION DATA informationiscurrentas ofpublicationdate. Copyright© 2005–2013,Texas InstrumentsIncorporatedProductsconform to specificationsper the terms of the Texas Instrumentsstandardwarranty.Productionprocessingdoes not necessarilyincludetestingofallparameters.
SNOSAF6B –JANUARY 2005–REVISED APRIL 2013 www.ti.com One-Shot MultivibratorwithInputLock Out These deviceshave limitedbuilt-inESD protection.The leadsshouldbe shortedtogetherorthedeviceplacedinconductivefoam duringstorageorhandlingtopreventelectrostaticdamage totheMOS gates.
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www.ti.com SNOSAF6B –JANUARY 2005–REVISED APRIL 2013 ABSOLUTE MAXIMUM RATINGS (1)(2) SupplyVoltage,V+ 36 VDC or±18 VDC DifferentialInputVoltage(3) 36 VDC InputVoltage −0.3VDC to+36 VDC InputCurrent(VIN<−0.3VDC ),(4) 50 mA Power Dissipation(5) Molded PDIP 1050 mW SmallOutlinePackage (SOIC) 760 mW OutputShort-CircuittoGND, (6) Continuous StorageTemperatureRange −65°C to+150°C Lead Temperature(Soldering,10 seconds) 260°C OperatingTemperatureRange LM2901 −40°C to+85°C SolderingInformation Dual-In-LinePackage Soldering(10seconds) 260°C SmallOutlinePackage Vapor Phase (60seconds) 215°C Infrared(15seconds) 220°C ESD rating(1.5kΩ inserieswith100 pF) 600V (1) AbsoluteMaximum Ratingsindicatelimitsbeyond whichdamage tothedevicemay occur. (2) IfMilitary/Aerospacespecifieddevicesarerequired,pleasecontacttheTISalesOffice/Distributorsforavailabilityand specifications. (3) Positiveexcursionsofinputvoltagemay exceed thepower supplylevel.As longas theothervoltageremainswithinthecommon-mode range,thecomparatorwillprovidea properoutputstate.The lowinputvoltagestatemust notbe lessthan−0.3VDC (or0.3VDC below themagnitudeofthenegativepower supply,ifused)(at25°C). (4) Thisinputcurrentwillonlyexistwhen thevoltageatany oftheinputleadsisdrivennegative.Itisdue tothecollector-basejunctionof theinputPNP transistorsbecoming forwardbiasedand therebyactingas inputdiodeclamps.Inadditiontothisdiodeaction,thereis alsolateralNPN parasitictransistoractionon theIC chip.Thistransistoractioncan cause theoutputvoltagesofthecomparatorstogo totheV+ voltagelevel(ortogroundfora largeoverdrive)forthetimedurationthatan inputisdrivennegative.Thisisnotdestructive and normaloutputstateswillre-establishwhen theinputvoltage,whichwas negative,againreturnstoa valuegreaterthan−0.3VDC (at 25°)C. (5) Foroperatingathightemperatures,theLM2901EP must be deratedbased on a 125°C maximum junctiontemperatureand a thermal resistanceof95°C/W whichappliesforthedevicesolderedina printedcircuitboard,operatingina stillairambient.The lowbias dissipationand the“ON-OFF ”characteristicoftheoutputskeeps thechipdissipationverysmall(PD ≤100 mW), providedtheoutput transistorsareallowedtosaturate. (6) ShortcircuitsfromtheoutputtoV+ can cause excessiveheatingand eventualdestruction.When consideringshortcircuitstoground, themaximum outputcurrentisapproximately20 mA independentofthemagnitudeofV+. ELECTRICAL CHARACTERISTICS (1) (V+ = 5 VDC ,TA = 25°C, unlessotherwisestated) Parameter Conditions LM2901 Units Min Typ Max InputOffsetVoltage See (2) 2.0 7.0 mV DC InputBiasCurrent IIN(+)orIIN(−) withOutputin 25 250 nADC LinearRange,(3),VCM =0V InputOffsetCurrent IIN(+)−IIN(−),VCM = 0V 5 50 nADC InputCommon-Mode VoltageRange V+ = 30 VDC (4) 0 V+−1.5 VDC SupplyCurrent R L = ∞ on allComparators, 0.8 2.0 mA DC R L = ∞,V+ = 36V, 1.0 2.5 mA DC VoltageGain R L ≥ 15 kΩ,V+ = 15 VDC 100 V/mV VO = 1 VDC to11 VDC (1) "Testingand otherqualitycontroltechniquesareused totheextentdeemed necessarytoensureproductperformanceoverthe specifiedtemperaturerange.Productmay notnecessarilybe testedacrossthefulltemperaturerangeand allparametersmay not necessarilybe tested.Intheabsence ofspecificPARAMETRIC testing,productperformanceisassuredby characterizationand/or design." (2) Atoutputswitchpoint,VO ≃1.4VDC ,R S = 0Ω withV+ from5 VDC to30 VDC ;and overthefullinputcommon-mode range(0VDC toV+ −1.5VDC ),at25°C. (3) The directionoftheinputcurrentisoutoftheIC due tothePNP inputstage.Thiscurrentisessentiallyconstant,independentofthe stateoftheoutputso no loadingchange existson thereferenceorinputlines. (4) The inputcommon-mode voltageoreitherinputsignalvoltageshouldnotbe allowedtogo negativeby more than0.3V.The upperend ofthecommon-mode voltagerangeisV+ −1.5Vat25°C, buteitherorbothinputscan go to+30 VDC withoutdamage independentofthe magnitudeofV+. Copyright© 2005–2013,Texas InstrumentsIncorporated SubmitDocumentationFeedback 3 ProductFolderLinks:LM2901EP
SNOSAF6B –JANUARY 2005–REVISED APRIL 2013 www.ti.com ELECTRICAL CHARACTERISTICS (1)(continued) (V+ = 5 VDC ,TA = 25°C, unlessotherwisestated) Parameter Conditions LM2901 Units Min Typ Max LargeSignal VIN = TTL LogicSwing,VREF = 300 ns Response Time 1.4VDC ,VRL = 5 VDC , R L = 5.1kΩ, Response Time VRL = 5 VDC ,R L = 5.1kΩ,(5) 1.3 μs OutputSinkCurrent VIN(−)= 1 VDC ,VIN(+)= 0, 6.0 16 mA DC VO ≤ 1.5VDC SaturationVoltage VIN(−) = 1 VDC ,VIN(+)= 0, 250 400 mV DC ISINK ≤ 4 mA OutputLeakage VIN(+)= 1 VDC ,VIN(−) = 0, 0.1 nADC Current VO = 5 VDC (5) The responsetimespecifiedisa 100 mV inputstepwith5 mV overdrive.Forlargeroverdrivesignals300 ns can be obtained,see TYPICAL PERFORMANCE CHARACTERISTICS section. ELECTRICAL CHARACTERISTICS (1) (V+ = 5.0VDC )(2) Parameter Conditions LM2901 Units Min Typ Max InputOffsetVoltage See (3) 9 15 mV DC InputOffsetCurrent IIN(+)−IIN(−),VCM = 0V 50 200 nADC InputBiasCurrent IIN(+)orIIN(−) withOutputin 200 500 nADC LinearRange, VCM = 0V (4) InputCommon-Mode V+ = 30 VDC (5) 0 V+−2.0 VDC VoltageRange SaturationVoltage VIN(−) = 1 VDC ,VIN(+)= 0, 400 700 mV DC ISINK ≤ 4 mA OutputLeakage Current VIN(+)= 1 VDC ,VIN(−) = 0, 1.0 μADC VO = 30 VDC DifferentialInputVoltage Keep allVIN's ≥ 0 VDC (orV−,ifused),(6) 36 VDC (1) "Testingand otherqualitycontroltechniquesareused totheextentdeemed necessarytoensureproductperformanceoverthe specifiedtemperaturerange.Productmay notnecessarilybe testedacrossthefulltemperaturerangeand allparametersmay not necessarilybe tested.Intheabsence ofspecificPARAMETRIC testing,productperformanceisassuredby characterizationand/or design." (2) These specificationsarelimitedto−40°C ≤ TA ≤ +85°C, fortheLM2901EP. (3) Atoutputswitchpoint,VO ≃1.4VDC ,R S = 0Ω withV+ from5 VDC to30 VDC ;and overthefullinputcommon-mode range(0VDC toV+ −1.5VDC ),at25°C. (4) The directionoftheinputcurrentisoutoftheIC due tothePNP inputstage.Thiscurrentisessentiallyconstant,independentofthe stateoftheoutputso no loadingchange existson thereferenceorinputlines. (5) The inputcommon-mode voltageoreitherinputsignalvoltageshouldnotbe allowedtogo negativeby more than0.3V.The upperend ofthecommon-mode voltagerangeisV+ −1.5Vat25°C, buteitherorbothinputscan go to+30 VDC withoutdamage independentofthe magnitudeofV+. (6) Positiveexcursionsofinputvoltagemay exceed thepower supplylevel.As longas theothervoltageremainswithinthecommon-mode range,thecomparatorwillprovidea properoutputstate.The lowinputvoltagestatemust notbe lessthan−0.3VDC (or0.3VDC below themagnitudeofthenegativepower supply,ifused)(at25°C).
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www.ti.com SNOSAF6B –JANUARY 2005–REVISED APRIL 2013 TYPICAL PERFORMANCE CHARACTERISTICS Supply Current InputCurrent Figure1. Figure2. Response Time forVariousInputOverdrives Output SaturationVoltage — NegativeTransition Figure3. Figure4. Response Time forVariousInputOverdrives — PositiveTransition Figure5. Copyright© 2005–2013,Texas InstrumentsIncorporated SubmitDocumentationFeedback 5 ProductFolderLinks:LM2901EP
SNOSAF6B –JANUARY 2005–REVISED APRIL 2013 www.ti.com APPLICATION HINTS The LM2901EP isa highgain,wide bandwidthdevicewhich,likemost comparators,can easilyoscillateifthe outputleadisinadvertentlyallowedtocapacitivelycoupletotheinputsviastraycapacitance.Thisshows up only duringtheoutputvoltagetransitionintervalsas thecomparatorchanges states.Power supplybypassingisnot requiredto solvethisproblem.StandardPC board layoutishelpfulas itreducesstrayinput-outputcoupling. Reducing thisinputresistorsto < 10 kΩ reducesthe feedbacksignallevelsand finally,addingeven a small amount (1to10 mV) ofpositivefeedback(hysteresis)causes such a rapidtransitionthatoscillationsdue tostray feedbackare not possible.Simplysocketingthe IC and attachingresistorsto the pinswillcause input-output oscillationsduringthesmalltransitionintervalsunlesshysteresisisused.Iftheinputsignalisa pulsewaveform, withrelativelyfastriseand falltimes,hysteresisisnotrequired. Allpinsofany unused comparatorsshouldbe tiedtothenegativesupply. The biasnetworkoftheLM2901EP seriesestablishesa draincurrentwhichisindependentofthemagnitudeof thepower supplyvoltageovertherangeoffrom2 VDC to30 VDC . Itisusuallyunnecessarytouse a bypasscapacitoracrossthepower supplyline. The differentialinputvoltagemay be largerthanV+ withoutdamaging thedevice.Protectionshouldbe provided topreventtheinputvoltagesfrom goingnegativemore than−0.3VDC (at25°C).An inputclamp diodecan be used as shown intheTypicalApplicationssection. The outputof the LM2901EP isthe uncommittedcollectorof a grounded-emitterNPN outputtransistor.Many collectorscan be tiedtogethertoprovidean outputOR'ingfunction.An outputpull-upresistorcan be connected toany availablepower supplyvoltagewithinthepermittedsupplyvoltagerangeand thereisno restrictionon this voltagedue tothemagnitudeofthevoltagewhichisappliedtotheV+ terminaloftheLM2901EP package.The outputcan alsobe used as a simpleSPST switchtoground(when a pull-upresistorisnotused).The amount of currentwhichtheoutputdevicecan sinkislimitedby thedriveavailable(whichisindependentofV+)and theβ ofthisdevice.When themaximum currentlimitisreached(approximately16 mA), theoutputtransistorwillcome out of saturationand the outputvoltagewillriseveryrapidly.The outputsaturationvoltageislimitedby the approximately60Ω R SAT oftheoutputtransistor.The low offsetvoltageoftheoutputtransistor(1mV) allowsthe outputtoclamp essentiallytogroundlevelforsmallloadcurrents. TypicalApplications (V+ = 5.0VDC ) The LM139 withinthisdatasheet'sgraphicsisreferencedbecause ofit'sa similaritytotheLM2901, however is notofferedinthisdatasheet. Figure6. Basic Comparator Figure7. DrivingCMOS
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www.ti.com SNOSAF6B –JANUARY 2005–REVISED APRIL 2013 Figure8. DrivingTTL Figure9. AND Gate Figure10. OR Gate Copyright© 2005–2013,Texas InstrumentsIncorporated SubmitDocumentationFeedback 7 ProductFolderLinks:LM2901EP
SNOSAF6B –JANUARY 2005–REVISED APRIL 2013 www.ti.com TypicalApplications (V+= 15 VDC ) The LM139 withinthisdatasheet'sgraphicsisreferencedbecause ofit'sa similaritytotheLM2901, however is notofferedinthisdatasheet. Figure11. One-Shot Multivibrator Figure12. Bi-StableMultivibrator
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www.ti.com SNOSAF6B –JANUARY 2005–REVISED APRIL 2013 Figure13. One-Shot MultivibratorwithInputLock Out Figure14. Pulse Generator Copyright© 2005–2013,Texas InstrumentsIncorporated SubmitDocumentationFeedback 9 ProductFolderLinks:LM2901EP
SNOSAF6B –JANUARY 2005–REVISED APRIL 2013 www.ti.com Figure15. Large Fan-InAND Gate
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www.ti.com SNOSAF6B –JANUARY 2005–REVISED APRIL 2013 Figure16. ORing theOutputs Copyright© 2005–2013,Texas InstrumentsIncorporated SubmitDocumentationFeedback 11 ProductFolderLinks:LM2901EP
SNOSAF6B –JANUARY 2005–REVISED APRIL 2013 www.ti.com Figure17. Time Delay Generator Figure18. Non-InvertingComparator withHysteresis
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www.ti.com SNOSAF6B –JANUARY 2005–REVISED APRIL 2013 Figure19. InvertingComparator withHysteresis Figure20. Squarewave Oscillator Figure21. Basic Comparator Copyright© 2005–2013,Texas InstrumentsIncorporated SubmitDocumentationFeedback 13 ProductFolderLinks:LM2901EP
SNOSAF6B –JANUARY 2005–REVISED APRIL 2013 www.ti.com Figure22. LimitComparator Figure23. Comparing InputVoltagesofOpposite Polarity *Or open-collectorlogicgatewithoutpull-upresistor Figure24. Output Strobing
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www.ti.com SNOSAF6B –JANUARY 2005–REVISED APRIL 2013 Figure25. CrystalControlledOscillator Copyright© 2005–2013,Texas InstrumentsIncorporated SubmitDocumentationFeedback 15 ProductFolderLinks:LM2901EP
SNOSAF6B –JANUARY 2005–REVISED APRIL 2013 www.ti.com V+ = +30 VDC 250 mV DC ≤ VC ≤ +50 VDC
700 Hz ≤ fO ≤ 100 kHz
Figure26. Two-Decade High-FrequencyVCO
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www.ti.com SNOSAF6B –JANUARY 2005–REVISED APRIL 2013 Figure27. Transducer Amplifier Figure28. Zero Crossing Detector(SinglePower Supply) Copyright© 2005–2013,Texas InstrumentsIncorporated SubmitDocumentationFeedback 17 ProductFolderLinks:LM2901EP
SNOSAF6B –JANUARY 2005–REVISED APRIL 2013 www.ti.com Split-SupplyApplications (V+ = +15 VDC and V− = −15 VDC ) Figure29. MOS Clock Driver Figure30. Zero Crossing Detector
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www.ti.com SNOSAF6B –JANUARY 2005–REVISED APRIL 2013 Figure31. Comparator With a NegativeReference Schematic Diagram Copyright© 2005–2013,Texas InstrumentsIncorporated SubmitDocumentationFeedback 19 ProductFolderLinks:LM2901EP
SNOSAF6B –JANUARY 2005–REVISED APRIL 2013 www.ti.com Connection Diagrams Dual-In-LinePackage -SOIC/PDIP See Package Number D and NFF
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www.ti.com SNOSAF6B –JANUARY 2005–REVISED APRIL 2013
REVISION HISTORY
Changes from RevisionA (April2013)toRevisionB Page Copyright© 2005–2013,Texas InstrumentsIncorporated SubmitDocumentationFeedback 21 ProductFolderLinks:LM2901EP
www.ti.com 20-May-2025 PACKAGING INFORMATION Orderable part number Status (1) Material type (2) Package | Pins Package qty | Carrier RoHS (3) Lead finish/ Ball material (4) MSL rating/ Peak reflow (5) Op temp (°C) Part marking (6) LM2901 MWA Active Production WAFERSALE (YS) | 0 1 | NOT REQUIRED - Call TI Level-1-NA-UNLIM -40 to 85 (1) Status: For more details on status, see our product life cycle. (2) Material type: When designated, preproduction parts are prototypes/experimental devices, and are not yet approved or released for full production. Testing and final process, including without limitation quality assurance, reliability performance testing, and/or process qualification, may not yet be complete, and this item is subject to further changes or possible discontinuation. If available for ordering, purchases will be subject to an additional waiver at checkout, and are intended for early internal evaluation purposes only. These items are sold without warranties of any kind. (3) RoHS values: Yes, No, RoHS Exempt. See the TI RoHS Statement for additional information and value definition. (4) Lead finish/Ball material: Parts may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead finish/Ball material values may wrap to two lines if the finish value exceeds the maximum column width. (5) MSL rating/Peak reflow: The moisture sensitivity level ratings and peak solder (reflow) temperatures. In the event that a part has multiple moisture sensitivity ratings, only the lowest level per JEDEC standards is shown. Refer to the shipping label for the actual reflow temperature that will be used to mount the part to the printed circuit board. (6) Part marking: There may be an additional marking, which relates to the logo, the lot trace code information, or the environmental category of the part. Multiple part markings will be inside parentheses. Only one part marking contained in parentheses and separated by a "~" will appear on a part. If a line is indented then it is a continuation of the previous line and the two combined represent the entire part marking for that device. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. Addendum-Page 1
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