标签: opamp

ONSEMI_NCS20034QuadOp-Amp,7MHz,HighSlewRate,Rail-to-RailOutput.PDF

Abstract:Initssimplestform,thePCvoltmeterconsistsofa4-channel,10-bitA/Dconverter(IC2)withafewpassivecomponents,connectedtothePCprinterportviaa25-pinmaleD-typeconnector.Maxim>AppNotes>A/DandD/AConversion/SamplingCircuitsAmplifierandComparatorCircuitsKeywords:lowpoweredopamps,quadopamps,rail-to-railinputs,rail-to-railoutputs,rail-to-railopamps,opampApr10,2003APPLICATIONNOTE1988CircuitEnablesPC-BasedVoltageMeasurementsAbstract:Initssimplestform,thePCvoltmeterconsistsofa4-channel,10-bitA/Dconverter(IC2)withafewpassivecomponents,connectedtothePCprinterportviaa25-pinmaleD-typeconnector.Initssimplestform,thePCvoltmeterofFigure1consistsofsection"A"alone:a4-channel,10-bitA/Dconverter(IC2)withafewpassivecomponents,connectedtothePCprinterportviaa25-pinmaleD-typeconnector.Powerisderivedfrompins2and3,andthecir……

Abstract:ThefollowingapplicationnoteshowsacircuitthatconvertstheloadcurrentofapositivepowersupplyintoagroundreferencedsignalvoltageusingtheICL7612operationalamplifier.Maxim>AppNotes>AMPLIFIERANDCOMPARATORCIRCUITSKeywords:positivesupplycurrent,monitoring,loadcurrent,powersupply,opamp,operationalamplifiers,opJul09,1998ampsAPPLICATIONNOTE69MicropowerCircuitMonitorsPositiveSupplyCurrentAbstract:ThefollowingapplicationnoteshowsacircuitthatconvertstheloadcurrentofapositivepowersupplyintoagroundreferencedsignalvoltageusingtheICL7612operationalamplifier.TheinexpensivecircuitofFigure1convertstheloadcurrentofapositivepowersupplytoaground-referencedsignalvoltage,withoutrecoursetotheinstrumentationamplifier,extrapowersupply,andmatchedsetsofresistorstypicalofsuchcircuits.TheoutputcurrentIO(proportionaltosupplycurrent)flowsthroughROtoproduceVO.Be……

Abstract:Aquad,low-noise,opampandLDOareusedtobuildastereopreampwithRIAAequalizationtoallowconvertingsignalsfromarecordplayer(phonograph)toalinearoutputfordigitizingbycomputersoundcardsetc.Maxim>AppNotes>AMPLIFIERANDCOMPARATORCIRCUITSAUTOMOTIVEKeywords:lownoise,opamp,phono,phonograph,RIAA,preamp,opamp,operationalamplifiers,opamps,Mar14,2003amplifierAPPLICATIONNOTE1931USB-PoweredHighPrecisionHi-FiPhonoPreampAbstract:Aquad,low-noise,opampandLDOareusedtobuildastereopreampwithRIAAequalizationtoallowconvertingsignalsfromarecordplayer(phonograph)toalinearoutputfordigitizingbycomputersoundcardsetc.Aphonopreampisneededforpreamplifyingandequalizingtheanalogoutputofthegoodoldrecordplayer.Theformerhi-fiamplifiersorstereosincludedaphonoinput,butatthistimeitisnotverycommonbecausetheCDplayerhasalinearoutputanddoesn'tneedlinearization.Ifyoustillwantt……

：取消负载允许运算放大器的能力高输出电流，同时维持所有其他高精度规格，例如，获得了很高的开放环，低偏置的电压和电流、低偏移电压和电流的偏移量的噪音，低失真。Maxim>AppNotes>AMPLIFIERANDCOMPARATORCIRCUITSKeywords:negativeresistance,opamp,operationalamplifier,loadcanceling,open-loopgain,lowoffsetJan31,2003voltage,offsetcurrent,lowoffset-voltage,offset-currentnoise,lowdistortion,opampAPPLICATIONNOTE1868NegativeResistorCancelsOpAmpLoadAbstract:Cancelingtheloadallowstheopampthecapabilityforhighoutputcurrentwhilemaintainingalltheotherhigh-accuracyspecificationssuchasveryhighopen-loopgain,lowoffsetvoltageandcurrent,lowoffset-voltageandoffset-currentnoise,andlowdistortion.Accurateopampsareoftencharacterizedashavingveryhighopen-loopgain,lowoffsetvoltageandcurrent,lowoffset-voltageandoffset-currentnoise,andlowdistortion.Conspicuouslyabsen……

摘要：为了减少功耗，单电源运算放大器驱动以地为参考的负载，连接一个上拉电阻，输出和正电源电压之间的负载电阻值等于。这除了使运算放大器工作在更高的环境温度和驱动低电阻负载，仅由输出电压和电流（而不是封装的功耗），其最大额定值的限制。Maxim>AppNotes>AMPLIFIERANDCOMPARATORCIRCUITSKeywords:singlesupply,opamp,opamp,applicationcircuit,appnote,appnote,opamps,opamps,tutorial,Feb07,2003tutorialsAPPLICATIONNOTE1877OneResistorTakesHeatfromSingle-SupplyOpAmpsAbstract:Tominimizethepowerdissipationinasingle-supplyopamp,drivingaground-referencedload,connectapullupresistor,withvalueequaltotheloadresistorbetweentheoutputandthepositivesupplyvoltage.Thisadditionenablestheopamptooperateathigherambienttemperaturesanddrivelower-resistanceloads,limitedonlybyitsmaximumratingsforoutputvoltageandcurrent(ratherthanthepackagepowerdissipation).Tomaximizesignalswing,theoutputofasingle-supplyopampisusuallybiasedathalfthe……

摘要：建立运算放大器引入了一个新的基本组成部分，标志着模拟设计师的思维变化。因为它是如此广泛的应用，几乎任何运放电路，工程师需要实现已经被设计工程师可以只是裁缝的元件值。这种方法虽然快速，并不总是意味着设计师电路的操作理论的一个基本的了解。本应用笔记介绍如何可以通过简单的节点分析过程中所产生的大多数运放电路的传递函数。Maxim>AppNotes>AMPLIFIERANDCOMPARATORCIRCUITSKeywords:nodalanalysis,opampcircuits,circuitanalysis,opamps,transferfunctionofanopamp,opamps,Mar20,2003opampAPPLICATIONNOTE1939NodalAnalysisofOpAmpCircuitsAbstract:Thecreationoftheopampintroducedanewfundamentalcomponentandmarkedachangeinthinkingforanalogdesigners.Sinceitissowidelyused,prettymuchanyopampcircuitthatanengineerneedstoimplementhasalreadybeendesignedandtheengineercanmerelytailorthecomponentvalues.Thisapproach,althoughquick,doesnotalwaysmeanthedesignerhasafundamentalunderstandingofthetheoryofthecircuitoperation.Thisapplicationnoteexplainshowthetransferfunctionofmostopampcircuitscanbederivedbyasimplepro……

摘要：如果连接不当，未提交的运放导致功耗增加等问题并添加噪音。本应用指南说明如何正确终止未提交的运算放大器。Maxim>AppNotes>AMPLIFIERANDCOMPARATORCIRCUITSKeywords:uncommittedopamp,uncommittedoperationalamplifier,unusedopamp,unusedoperationalMar25,2003amplifier,quadopamp,uncommitted,unused,opampAPPLICATIONNOTE1957AvoidingNoiseandPowerProblemswithUnusedOpAmpsAbstract:Ifconnectedimproperly,anuncommittedopampleadstoproblemssuchasincreasedpowerconsumptionandaddednoise.Thisapplicationnoteshowshowtoproperlyterminateanuncommittedopamp.Sometimesthereareoneormoreunusedoperationalamplifiers(opamps)inacircuitdesign.Forexample,Figure2ofApplicationNote994:ReferenceVoltageforMultipleADCsusesthreeofthefouropampsintheMAX4254todrivethereferenceinputsofanADC.Unusedopampsinthissituation……

数值分析电路并不意味着你要购买昂贵的模拟器。使用Microsoft®Excel的功能，通常可用的工程师的计算机上，很容易你可以很多常见的电路计算。虽然这不会取代你最喜欢的口味，它可以是香料的一个强大的工具，以解决专门的问题，或获得的直觉。Maxim>AppNotes>AmplifierandComparatorCircuitsKeywords:PSPICEmodelingopamps,opampSPICEmodels,non-idealopampsimulation,circuitanalysis,Mar25,2003opamps,opampAPPLICATIONNOTE1947ExactCircuitAnalysiswithMicrosoftExcelAbstract:Analyzingcircuitsnumericallydoesn'tmeanyouhavetobuyanexpensivesimulator.WiththecapabilitiesofMicrosoftExcel,commonlyavailableonengineers'computers,youcaneasilydomanycommoncircuitcalculations.Whilethiswon'treplaceyourfavoriteflavorofSPICE,itcanbeapowerfultooltosolveadedicatedproblemorgainintuition.SettingupaSimulationThefirstthingyouneedtoknowishowtouseExcel'sCOMPLEXfunction.Thecomplexfunctionfamilyallowsyoutoworkdirectlywiththecomplexnumbersth……

摘要：该电路显示了如何使用一个MAX406CMOS运算放大器非常高的输入阻抗非常高的输出阻抗缓冲pH值探头。所具备的优势，是一个标准的低成本电缆代替高成本的聚四氟乙烯介质同轴电缆的使用。该电路可连续数千小时的单节锂电池供电，电池的消耗是如此之低。驾驶一台液晶显示器显示的MAX130A集成ADC的使用。Maxim>AppNotes>AmplifierandComparatorCircuitsSensorsKeywords:op-amp,lowpower,buffer,pHprobe,integratingADC,analogtodigitalconverter,opamps,opampNov21,2000APPLICATIONNOTE34Low-PowerOp-AmpReducesCableCostsforpHProbeAbstract:Thecircuitshowshowtousetheveryhigh-inputimpedanceofaMAX406CMOSopamptobuffertheextremelyhigh-outputimpedanceofapHprobe.Theadvantagegainedistheuseofastandardlow-costcableinsteadofahigh-costTeflondielectriccoaxcable.Batterydrainissolowthatthecircuitcanbecontinuouslypoweredforthousandsofhoursonasinglelithiumcell.UseofaMAX130AintegratingADCisshownfordrivingaLCDdisplay.TheextremelyhighsourceimpedanceofapHprobe(1012Ω)oftenmandatest……

摘要：几个运算放大器和一些外部组件，您可以构建脉冲发生器与变频和工作周期。Maxim/Dallas>AppNotes>AMPLIFIERANDCOMPARATORCIRCUITSAUTOMOTIVEKeywords:pulsegenerator,VCO,voltagecontrolledoscillator,opamp,operationalamplifier,frequency,Mar26,2003squarewave,opamp,opampsAPPLICATIONNOTE1960SimplePulseGeneratorHasLowPartsCountWithafewopampsandsomeexternalcomponents,youcanbuildapulsegeneratorwithvariablefrequencyanddutycycle.Thenaturalchoiceforgeneratingapulseofvariablefrequencyanddutycycleisagoodbench-toppulsegenerator.Ifyoudon'thaveageneratorormustbuildoneintoyoursystem,however,youcandoitwithafewopampsandsomeexternalcomponents(Figure1).Figure1.Thissimpleandversatilepulsegeneratorincludesonly15components.U1andQ1formavoltage-c……

摘要：在其最简单的形式，4通道10位A/D转换器（IC2）的几个被动元件，通过25针D型连接器连接到PC的打印机端口，PC的电压表组成。Maxim>AppNotes>A/DandD/AConversion/SamplingCircuitsAmplifierandComparatorCircuitsKeywords:lowpoweredopamps,quadopamps,rail-to-railinputs,rail-to-railoutputs,rail-to-railopamps,opampApr10,2003APPLICATIONNOTE1988CircuitEnablesPC-BasedVoltageMeasurementsAbstract:Initssimplestform,thePCvoltmeterconsistsofa4-channel,10-bitA/Dconverter(IC2)withafewpassivecomponents,connectedtothePCprinterportviaa25-pinmaleD-typeconnector.Initssimplestform,thePCvoltmeterofFigure1consistsofsection"A"alone:a4-channel,10-bitA/Dconverter(IC2)withafewpassivecomponents,connectedtothePCprinterportviaa25-pinmaleD-typeconnector.Powerisderivedfrompins2and3,andthecir……

摘要：四，低噪声，运算放大器和LDO用于建立与RIAA的均衡立体声前置允许电唱机（留声机）的信号转换成线性输出一个数字化的电脑声卡等Maxim>AppNotes>AMPLIFIERANDCOMPARATORCIRCUITSAUTOMOTIVEKeywords:lownoise,opamp,phono,phonograph,RIAA,preamp,opamp,operationalamplifiers,opamps,Mar14,2003amplifierAPPLICATIONNOTE1931USB-PoweredHighPrecisionHi-FiPhonoPreampAbstract:Aquad,low-noise,opampandLDOareusedtobuildastereopreampwithRIAAequalizationtoallowconvertingsignalsfromarecordplayer(phonograph)toalinearoutputfordigitizingbycomputersoundcardsetc.Aphonopreampisneededforpreamplifyingandequalizingtheanalogoutputofthegoodoldrecordplayer.Theformerhi-fiamplifiersorstereosincludedaphonoinput,butatthistimeitisnotverycommonbecausetheCDplayerhasalinearoutputanddoesn'tneedlinearization.Ifyoustillwantt……

摘要：数的运算放大器和一些外部元件，您可以建立具有可变频率和占空比的脉冲发生器。Maxim/Dallas>AppNotes>AMPLIFIERANDCOMPARATORCIRCUITSAUTOMOTIVEKeywords:pulsegenerator,VCO,voltagecontrolledoscillator,opamp,operationalamplifier,frequency,Mar26,2003squarewave,opamp,opampsAPPLICATIONNOTE1960SimplePulseGeneratorHasLowPartsCountWithafewopampsandsomeexternalcomponents,youcanbuildapulsegeneratorwithvariablefrequencyanddutycycle.Thenaturalchoiceforgeneratingapulseofvariablefrequencyanddutycycleisagoodbench-toppulsegenerator.Ifyoudon'thaveageneratorormustbuildoneintoyoursystem,however,youcandoitwithafewopampsandsomeexternalcomponents(Figure1).Figure1.Thissimpleandversatilepulsegeneratorincludesonly15components.U1andQ1formavoltage-c……

DesignProcedureforTwo-StageCMOSOpampWithFlexibleNoise-PowerBalancingScheme1508IEEETRANSACTIONSONCIRCUITSANDSYSTEMS―I:REGULARPAPERS,VOL.52,NO.8,AUGUST2005DesignProcedureforTwo-StageCMOSOpampWithFlexibleNoise-PowerBalancingSchemeJirayuthMahattanakul,Member,IEEE,andJamornChutichatupornAbstract―Thispaperpresentsabasictwo-stageCMOSopampdesignprocedurethatprovidesthecircuitdesignerwithameanstostrikeabalancebetweentwoimportantcharacteristicsinelectroniccircuitdesign,namelynoiseperformanceandpowerconsumption.Itisshowninthispaperthat,unlikethepreviouslyreporteddesignprocedures,theproposeddesignstepallowsopampdesignerstotradebetweennoiseperformanceandpowerconsumptionwithgreaterexibility.Inordertoverifytheviabilityoftheproposeddesignstep,SPICEsimulationresults……

AnalogDevice高速opamp设计指南SECTION1HIGHSPEEDOPERATIONALAMPLIFIERSWaltKesterINTRODUCTIONHighspeedanalogsignalprocessingapplications,suchasvideoandcommunications,requireopampswhichhavewidebandwidth,fastsettlingtime,lowdistortionandnoise,highoutputcurrent,goodDCperformance,andoperateatlowsupplyvoltages.Thesedevicesarewidelyusedasgainblocks,cabledrivers,ADCpre-amps,current-to-voltageconverters,etc.Achievinghigherbandwidthsforlesspowerisextremelycriticalintoday'sportableandbattery-operatedcommunicationsequipment.Therapidprogressmadeoverthelastfewyearsinhigh-speedlinearcircuitshashingednotonlyonthedevelopmentofICprocessesbutalsooninnovativecircuittopologies.Theevolutionofhighspeedprocessesbyusingamplifierband……