标签: potentiometer

UsingDigitalPotentiometersinAdjustableStep-DownDC-DCConverterDesigns……

:Manydevicesthatrequireauserinterfacetoadjusttemperature,backlightintensity,andsupplyvoltagearesubjectedtoinadvertentadjustmentstotheirsettings.Usingadigitalpotentiometerinthesedevicesenablesdesignerstoimplementasimplehardware-basedtechniquetoavoidtheseinadvertentadjustments.……

Pushbuttoncontrolofadigitalpotentiometerenablesthiscircuittocontroltheregulatedoutputofaswitchingconverter.……

摘要：本应用笔记讨论了数字校准的优势，并给出了一些常见的校准电路实例。校准电路BillLaumeister,应用工程师Mar05,2012摘要：本应用笔记讨论了数字校准的优势，并给出了一些常见的校准电路实例。校准的目的是获得更精确、更安全并且成本合理的设计方案。生产厂商利用校准手段能够以合理的价格提供“完美”器件。Maxim提供众多数字校准产品，支持快速的自动测试和调整。校准电路列表ADC放大器支持电流源DAC滤波器LCD偏置LED复用器电源传感器支持VCO电压基准本文给出的电路实例有助于节省开发时间，加速方案实施。多数工程师只需在一个电路上花费少许时间，即可得到满足其特定应用的电路设计。点击相应链接，可得到相关设计的应用笔记或数据资料等详细信息。电子校准能够在大多数应用中降低系统成本，消除生产过程的误差并允许使用低成本元件，有助于缩短产品测试时间，降低产品返还率，有效提高可靠性。另一方面，还有助于改善用户对产品的满意度，降低生产成本、提高生产效率。越来越多的产品利用数控校准器件和数字电位器替代机械电位器，以消除人为误差。从而加速产品测试、降低成本。另外，数字器件不受震动、灰尘、污物、潮湿等因素的影响，而这些因素往往会导致数字电位器失效。小尺寸的电子校准器件还能够有效节省电路板面积，有利于便携产品设计。本应用笔记给出了一些特定应用的校准电路，有关校准设计的注意事项和工具，请访问：china.maxim-ic.com/cal。校准应用电路ADC参考应用笔记2013：“通过调整基准电压提高ADC精度”。参考应用笔记4617：“ADC输入转换器”。参考应用笔记647：“利用比较器/DAC组合解决数据采集问题”。放大器支持参考MAX5389数据资料。参考应用笔记184：“利用DS1669实现数控相移”……

摘要：本应用笔记讨论了数字校准的优势，并给出了一些常见的校准电路实例。校准电路BillLaumeister,应用工程师Mar05,2012摘要：本应用笔记讨论了数字校准的优势，并给出了一些常见的校准电路实例。校准的目的是获得更精确、更安全并且成本合理的设计方案。生产厂商利用校准手段能够以合理的价格提供“完美”器件。Maxim提供众多数字校准产品，支持快速的自动测试和调整。校准电路列表ADC放大器支持电流源DAC滤波器LCD偏置LED复用器电源传感器支持VCO电压基准本文给出的电路实例有助于节省开发时间，加速方案实施。多数工程师只需在一个电路上花费少许时间，即可得到满足其特定应用的电路设计。点击相应链接，可得到相关设计的应用笔记或数据资料等详细信息。电子校准能够在大多数应用中降低系统成本，消除生产过程的误差并允许使用低成本元件，有助于缩短产品测试时间，降低产品返还率，有效提高可靠性。另一方面，还有助于改善用户对产品的满意度，降低生产成本、提高生产效率。越来越多的产品利用数控校准器件和数字电位器替代机械电位器，以消除人为误差。从而加速产品测试、降低成本。另外，数字器件不受震动、灰尘、污物、潮湿等因素的影响，而这些因素往往会导致数字电位器失效。小尺寸的电子校准器件还能够有效节省电路板面积，有利于便携产品设计。本应用笔记给出了一些特定应用的校准电路，有关校准设计的注意事项和工具，请访问：china.maxim-ic.com/cal。校准应用电路ADC参考应用笔记2013：“通过调整基准电压提高ADC精度”。参考应用笔记4617：“ADC输入转换器”。参考应用笔记647：“利用比较器/DAC组合解决数据采集问题”。放大器支持参考MAX5389数据资料。参考应用笔记184：“利用DS1669实现数控相移”……

Abstract:Current-limitswitchesarevirtuallyubiquitousinsystemcontrols.Theyprovideasafemeansforregulatingthecurrentdeliveredtoaloadcircuit.Theswitchesallowtheloadcurrenttoincreasetoaprogrammedlimitbutnohigher.Thisapplicationnoteillustratestheimplementationofadigitallyprogrammablecurrent-limitswitchusingMAX890Lacurrent-limited,high-sideP-channelswitchandMAX5160digitalpotentiometerMaxim>AppNotes>A/DandD/ACONVERSION/SAMPLINGCIRCUITSPOWER-SUPPLYCIRCUITSKeywords:currentlimited,current-limit,switch,digitalpotentiometer,digitalpots,Pchannelswitch,switchesAug17,2000APPLICATIONNOTE298Current-LimitSwitchIsDigitallyProgrammableAbstract:Current-limitswitchesarevirtuallyubiquitousinsystemcontrols.Theyprovideasafemeansforregulatingthecurrentdeliveredtoaloadcircuit.Theswitchesallowtheloadcurrenttoincreasetoaprogrammedlimitbutnohigher.Thisapplicationnoteillustratestheimplementationofadigitallyprogrammablecurrent-limitswitchusingMAX890Lacurrent-limited,high-sideP-channelswitchandMAX5160digitalpotentiometerAdditionalInformation:qQuickViewDataSheetfor……

Abstract:Acommonviewholdsthatdigitalcircuitsjustworknaturally,butanalogcircuitsarehardtoimplement.Thereistruthtothatoldbelief—analoginterfaceisanexpertsubjectthatrequirestraining.Itis,moreover,alwaysbettertoavoidanissuethantotrytosolveitlater.Thisispreciselywhyweshouldtakeadvantageofsomebasicconceptsthatexperiencedanalogengineersperformasareflex.Thisapplicationnoteprovidessomebasicremindersandconceptsaboutamplifiersandfiltersforyoutoconsiderduringadesign.Maxim>Designsupport>Appnotes>A/DandD/AConversion/SamplingCircuits>APP4993Maxim>Designsupport>Appnotes>AmplifierandComparatorCircuits>APP4993Maxim>Designsupport>Appnotes>AnalogSwitchesandMultiplexers>APP4993Keywords:digitalpotentiometer,lowpassfilter,filter,low-passfilter,lowpassfilte,antialiasing,sampleddatasystem,folded,Nyquist,dataconverters,spectrum,harmonics,FFT,ADC,convolution,DAC,opamps,RC,LC,ButterworthMar08,2011APPLICATIONNOTE4993ReducetheChancesofHumanError:Part2,SuperAmpsandFiltersforAnalogInterfaceBy:BillLaumeister,StrategicApplicationsEngineerAb……

电电压级别调整电压边距作为需要和，这种电路介绍运算放大器(MAX5481)和数字电位器来控制的反馈电压稳压器(MAX4245)。Maxim>Designsupport>Appnotes>AmplifierandComparatorCircuits>APP4564Maxim>Designsupport>Appnotes>BatteryManagement>APP4564Maxim>Designsupport>Appnotes>DigitalPotentiometers>APP4564Keywords:digitalpotentiometer,analog-voltagecontrol,op-ampbuffersJan20,2011APPLICATIONNOTE4564AddPreciseOutputAdjustmenttoLow-VoltageSuppliesAbstract:Totweaksupply-voltagelevelsandadjustvoltagemarginsasrequired,thiscircuitintroducesanopamp(MAX5481)anddigitalpotentiometer(MAX4245)tocontrolthefeedbackvoltagetothevoltageregulator.AsimilarversionofthisarticleappearedintheDecember20,2006issueo……

型，选项和包配置。并有今天的微型封装的识别标记的小房间。Maxim/Dallas>AppNotes>AMPLIFIERANDCOMPARATORCIRCUITSDIGITALPOTENTIOMETERSWIRELESS,RF,ANDCABLEKeywords:DS1804,digitalpotentiometerNov11,2004APPLICATIONNOTE3397ClarificationofDS1804OrderingInformationandPackageMarkingTheDS1804digitalpotentiometerisavailableinawidevarietyoftypes,options,andpackageconfigurations.Andthereislittleroomforidentificationmarkingsontoday'stinypackages.Howdousersdefineandordertherightpart?Andhowdotheyverifythatthepartstheyreceivearecorrect?ThistechnicalbriefisdesignedtohelpcustomersinterprettheorderinginformationandpackagemarkingsfortheDS1804.WithSoManyVariationsoftheDS1804,HowCanIBeS……

摘要：出于安全原因，我们保持我们的电路引用到我们的环境。在大多数情况下，这是大地。本应用笔记介绍了如何正确理解释放的本地电路接地作为参考点我们的思维去考虑其他的简单电路。Maxim>AppNotes>AUDIOCIRCUITSCIRCUITPROTECTIONGENERALENGINEERINGTOPICSSIGNALGENERATIONCIRCUITSTEMPERATURESENSORSandTHERMALMANAGEMENTKeywords:Initialaccuracy,digitalpots,potentiometer,resistance,voltagedividers,ratiometric,ratiosteps,Sep25,2008LSB,tapserror,referencedecoupling,EarthGround,highpush-buttoninterface,commonspaceshuttle,localpotentialAPPLICATIONNOTE4292WhereIsGround?By:BillLaumeisterAbstract:Forsafetyreasonswekeepourcircuitsreferencedtooursurroundings.Inmostcasesthisisearthground.Thisapplicationnoteexplainshowaproperunderstandingoflocalcircuitgroundasareferencepointfreesourthinkingtoconsiderothersimplecircuits.Whereisgroundinspace?Usuallyengineeringisstrictlyco……

摘要：调整电源电压水平和调整所需的电压余量，这条赛道介绍运算放大器（MAX5481）和数字电位器（MAX4245）控制的反馈电压稳压器。Maxim>Designsupport>Appnotes>AmplifierandComparatorCircuits>APP4564Maxim>Designsupport>Appnotes>BatteryManagement>APP4564Maxim>Designsupport>Appnotes>DigitalPotentiometers>APP4564Keywords:digitalpotentiometer,analog-voltagecontrol,op-ampbuffersJan20,2011APPLICATIONNOTE4564AddPreciseOutputAdjustmenttoLow-VoltageSuppliesAbstract:Totweaksupply-voltagelevelsandadjustvoltagemarginsasrequired,thiscircuitintroducesanopamp(MAX5481)anddigitalpotentiometer(MAX4245)tocontrolthefeedbackvoltagetothevoltageregulator.AsimilarversionofthisarticleappearedintheDecember20,2006issueo……

摘要：出于安全原因，我们保持我们的电路引用到我们的环境。在大多数情况下，这是大地。本应用笔记介绍了如何正确理解释放的本地电路接地作为参考点我们的思维去考虑其他的简单电路。Maxim>AppNotes>AUDIOCIRCUITSCIRCUITPROTECTIONGENERALENGINEERINGTOPICSSIGNALGENERATIONCIRCUITSTEMPERATURESENSORSandTHERMALMANAGEMENTKeywords:Initialaccuracy,digitalpots,potentiometer,resistance,voltagedividers,ratiometric,ratiosteps,Sep25,2008LSB,tapserror,referencedecoupling,EarthGround,highpush-buttoninterface,commonspaceshuttle,localpotentialAPPLICATIONNOTE4292WhereIsGround?By:BillLaumeisterAbstract:Forsafetyreasonswekeepourcircuitsreferencedtooursurroundings.Inmostcasesthisisearthground.Thisapplicationnoteexplainshowaproperunderstandingoflocalcircuitgroundasareferencepointfreesourthinkingtoconsiderothersimplecircuits.Whereisgroundinspace?Usuallyengineeringisstrictlyco……

摘要：并联稳压器提供了一个跨越数字电位器，运算放大器和晶体管结合，形成了一个软件可编程，电压控制电流源恒定参考电压。Maxim>Designsupport>Appnotes>CommunicationsCircuits>APP3464Keywords:currentsource,software-programmable,voltagecontrolled,digitalpotentiometerMar14,2005APPLICATIONNOTE3464PrecisionCurrentSourceisSoftware-ProgrammableAbstract:Ashuntregulatorprovidesaconstantreferencevoltageacrossadigitalpotentiometerthat,inconjunctionwithanopampandtransistor,formsasoftware-programmable,voltage-controlledcurrentsource.Withtheadditionofafewinexpensiveminiaturecomponents,thehard-wired,voltage-controlledcurrentsourceofyesterdaybecomesasoftware-programmablevoltage-controlledcurrentsource(Figure1).Adigi……

摘要：DS1851是一个双8位数字-模拟转换器（DAC），其中还包含双独立40字节的查找表（LUT）和内部数字温度传感器。其原始应用程序的激光器（VCSEL）驱动程序中使用的偏置电路的温度补偿。此应用程序的简要介绍了如何使用该A/D转换器提供温度补偿的同一类型的变容二极管，RF电路中常用的可变电容器。ApplicationNote1964DS1851:VaractorTemperatureCompensationwww.maxim-ic.comVaractorCharacteristicsVaractorsarediodesthatexhibitlargechangesincapacitancewhenthereversebiasisvaried.Thecapacitanceofavaractordecreasesasthereversebiasisincreased.Acapacitancechangeratioofgreaterthan5isnotuncommon.SeeFigure1foratypicalvaractorvoltage-capacitancecharacteristic.Figure1.TypicalVaractorVoltage-CapacitanceCharacteristic18.016.0……

摘要：一个电阻反馈网络经常被用来设置输出电压的电源。一个机械电位器（壶），方便地解决问题，调整电源。为了更方便地自动校准，机械锅可以用数字电位器取代。本应用笔记介绍了校准解决方案，采用了数字电位器，因为数字电位器小，随着年龄的增长或振动不动，并且可以远程重新调整。这个建议的解决方案降低了系统的最终数字电位器的端到端电阻的容差的敏感度，使设计师的最佳解决方案。本应用笔记中还介绍了一些需要计算电阻链的价值，并以这种方式使用的数字电位器的方程。一个与标准reisistor值的电子表格是容易计算。Maxim>DesignSupport>TechnicalDocuments>ApplicationNotes>DigitalPotentiometers>APP4936Keywords:powersupply,calibrate,calibration,voltagereference,digitalpotentiometer,digipot,mechanicalpotentiometer,resistivefeedbackApr20,2012APPLICATIONNOTE4936CalibratingaPowerSupplywithaDigitalPotentiometerBy:DavidFry,StrategicApplicationsEngineeringManagerApr20,2012Abstract:Aresistivefeedbacknetworkisoftenusedtosettheoutputvoltageofapowersupply.Amechanicalpotentiometer(pot)convenientlysolvestheproblemofadjustingapowersupply.Foreasierautomaticcalibration,amechanicalpotcanbereplacedwithadi……

摘要：本文件的目的是提供一个考试的DS1802双数字potentiomter的音频特性。测试电路开发与抽头点之间，通道间匹配，或两个电位器雨刷器，总谐波失真（THD），互调失真（IMD）和串扰之间的跟踪测量绝对错误的目标。ApplicationNote88AudioCharacterizationReportfortheDS1802DualDigitalAudioPotentiometerwww.dalsemi.comPURPOSEThepurposeofthisdocumentistoprovideanexaminationoftheDS1802DualDigitalPotentiometer’saudiocharacteristics.Testcircuitsweredevelopedwiththegoalofmeasuringabsoluteerrorbetweentappoints,inter-channelmatchingortrackingbetweenthetwopotentiometerwipers,totalharmonicdistortion(THD),intermodulationdistortion(IMD),andcross-talk.Additionally,dataisprovidedformutelevelsforeachpotentiometer,aswellasactiveandstandbycurrentasafunctionoftemperaturea……

摘要：DS3930包含6个256位的非易失性电位器，使DS3930需要多个电压基准的应用的理想设备。DS3930还具有四个通用，非易失性I/O引脚可以监视数字输入或提供一个数字输出。本应用笔记提供的例子使用的DS3930作为一个参考电压和数字I/OMaxim>AppNotes>DIGITALPOTENTIOMETERSKeywords:DS3930,potentiometer,non-volatile,nonvolatile,voltagereference,digitalI/O,LCD,fan,Jun25,2003photodiode,comparator,pressuresensorAPPLICATIONNOTE2140ExamplesUsingtheDS3930asVoltageReferencesandDigitalI/OAbstract:TheDS3930containssix256-positionnonvolatilepotentiometers,whichmakestheDS3930anidealdeviceforapplicationsneedingmultiplevoltagereferences.TheDS3930alsohasfourgeneral-purpose,nonvolatileI/Opinsthatcanmonitoradigitalinputorsupplyadigitaloutput.ThisapplicationnoteprovidesexamplesusingtheDS3930asavoltagereferenceanddigitalI/O.IntroductionTheDS3930containssix256-positionnonvolatile(NV)potentiometers(seeFigure1),whichmakestheDS393……

摘要：对所有的低频振荡器配置，维恩桥是最容易使用的。它是可靠的，使用标准组件，提供了一个很好的正弦波，并围绕它设计的运算放大器的类型是相当免疫。然而，文氏桥被误解和过于简单，导致设计师挫折。本文介绍的理论和实际使用维恩电桥振荡器，以及如何使电路更稳定和更factory-/user-flexible。Maxim>AppNotes>DIGITALPOTENTIOMETERSKeywords:WienBridge,DigitalPotentiometer,digitalpot,oscillatorMay24,2006APPLICATIONNOTE3846AnalysisofaDigitallyControlledWien-BridgeOscillatorAbstract:Ofallthelow-frequencyoscillatorconfigurations,theWienbridgeistheeasiesttouse.Itisreliable,usesstandardcomponents,givesagoodsinewave,andisfairlyimmunetothetypeofopamparoundwhichitisdesigned.AWienbridgecan,however,bemisunderstoodandoversimplified,leadingtodesignerfrustration.ThisarticledescribesthetheoryandpracticalitiesofusingaWien-bridgeoscillator,andhowtomakethecircuitmorestableandmorefactory-/user-flexible.TheWien-BridgeCircuitThecircuitofastandardWien-br……

摘要：本文讨论了一些与数字电位器设计时的关键问题和常见问题。主题雨刷当前（以及它如何影响动态范围），雨刮器电压，温度系数。如何减少或消除不必要的错误提示也包括在内。Maxim>AppNotes>DIGITALPOTENTIOMETERSGENERALENGINEERINGTOPICSKeywords:digitalpot,digitalpotentiometer,digitalpotFAQ,digitalpotbasics,designing,potentiometersMar25,2003APPLICATIONNOTE1956TipstoRememberWhenDesigningwithDigitalPotentiometersAbstract:Thisarticlediscussessomeofthekeyissuesandcommonquestionsthatarisewhendesigningwithdigitalpotentiometers.Topicsincludewipercurrent(andhowitaffectsdynamicrange),wipervoltages,andtemperaturecoefficients.Tipsonhowtoreduceoreliminateunwantederrorsarealsoincluded.qMoreappnotesfordigitalpotentiometerapplicationsqDigitalpotentiometerproductsThisarticlehighlightssomeofthekeyissuestoaddresswhendesigningwithdigitalpots.Configur……

摘要：双温度控制的DS1847/DS1848非易失（NV）可变电阻器由两个256位的线性可变电阻器和直接数字式温度传感器。该装置能够设置和温度补偿偏置电压和电流的使用最小的电路，这是利于控制应用。本应用笔记介绍，并提供了一个基于Excel的计算器，转换DS1847/DS1848温度为十六进制。转换工具转换回从十六进制的温度。ApplicationNote2099DS1847/DS1848OnlineInteractiveTemperatureCalculatorwww.maxim-ic.comOverviewTheDS1847/DS1848dualtemperature-controllednonvolatile(NV)variableresistorsconsistoftwo256-positionlinearvariableresistorsandadirect-to-digitaltemperaturesensor.Thedeviceiscapableofsettingandtemperature-compensatingbiasvoltagesandcurrentsusingminimalcircuitry,whichisbeneficialincontrolapplications.IntroductionTheaccompanyingcalculatorconvertstheDS1847/DS1848temperaturetohexadecimal.Theconversionutilityalsoconvertsbackfromhe……