标签: low-noise

Low-NoiseElectronicSystemDesign(C.D.Motchenbacher,J.A.Connelly)0471577421

摘要：在这个噪声发生器电路，放大器（MAX4238）有没有在其输入电压噪声的1/f的组成部分。它自己的输入电压噪声放大与低电阻值作出了反馈网络，无论是从电阻器或放大器的输入噪声电流以避免增加明显的1/F噪声。Maxim>AppNotes>AudioCircuitsSignalGenerationCircuitsKeywords:whitenoise,pinknoise,flickernoise,1/fnoise,low-noiseopampsDec06,2010APPLICATIONNOTE4527White-NoiseGeneratorHasNo1/fComponentAbstract:Inthisnoise-generatorcircuit,theamplifier(MAX4238)hasno1/fcomponentinitsinputvoltagenoise.Itamplifiesitsowninput-voltagenoisewithafeedbacknetworkmadewithlow-valueresistors,toavoidaddingnoticeable1/fnoiseeitherfromtheresistorsorfromtheamplifier’sinputnoisecurrent.AsimilarversionofthisarticleappearedintheMarch20,2008issueofEDNmagazine.White-noisegenerators(thoseforwhichthegraphofoutput-powerdensityvs.frequencyisflat)areusefulfort……

摘要：林奎茨均衡，意为极复杂的系统，其中q>0.5，中和原零极点补偿，然后创建一个新的高通响应由设计师指定的原始响应。原来的一样，新的电路提供了一个2阶响应。Maxim>AppNotes>AudioCircuitsKeywords:equalizers,low-noiselow-distortionopamps,low-frequencyloudspeakers,bassresponseDec21,2010APPLICATIONNOTE4525"LinkwitzCircuit"EqualizesaClosedBoxAbstract:TheLinkwitzequalizer,intendedforcomplex-polesystemsinwhichQ>0.5,neutralizestheoriginalresponsebycompensatingtheoriginalpoleswithzeros,andthencreatesanewhighpassresponseasspecifiedbythedesigner.Liketheoriginal,thenewcircuitprovidesa2nd-orderresponse.AsimilarversionofthisarticleappearedintheMay6,2008issueofEETimesmagazine.Thelinearityandhighpower-handlingcapabilityofmodernlow-frequencyloudspeakershavemadeiteasytoelectronicallyextendthebassresponse.Thisextensionises……

摘要：CMOS源的追随者不容易电路设计，但仔细分析，并考虑在BSIM模型源电阻，设计人员可以实现更精确的结果，以达到更好的匹配低噪声放大器的设计。Maxim>AppNotes>COMMUNICATIONSCIRCUITSKeywords:SourceResistance,CMOS,Source-Follower,Source-Followergain,BJT,bipolarjunctiontransistor,Jun27,2008commondrainamplifier,small-signalmodel,calculatingsourceresistance,intrinisicgm',low-noiseamplifierAPPLICATIONNOTE4231CMOSSourceResistanceandItsEffectsonSource-FollowerGainBy:JohnRobinsonAbstract:CMOSsourcefollowersarenoteasycircuitstodesign,butbycarefulanalysisandbytakingsourceresistanceintoaccountintheBSIMmodels,designerscanachievemoreaccurateresultstoachievebettermatchinginthedesignoflow-noiseamplifiers.IntroductionTheCMOSsourcefollowerisadifficultdevicetodesignusingaCMOSdevice,becausethetransconductanceofaCMOSdeviceislowco……

low-noiseamplifierChapter7Low-NoiseAmplifiersThehistoryofhigh-frequencyreceiversislargelythehistoryofthesearchforlownoise.Oneofthemostimportantgoals―andsuccesses―oftheMITRadiationLaboratory,duringthe1940s,wastheimprovementofthesensitivityofradarreceivers.Throughoutthe1960sand1970s,asspacecommunicationmatured,thesearchforlow-noisediodemixersbecamecritical.Thedevelopmentoflow-noisemicrowaveFETdevices,andtheirimprovementtothepointofastonishinglylownoisefigures,wasoneofthemajortechnologicalsuccessesofthe1980sand1990s.Eventhoughwenowhaveextraordinarilygoodlow-noisetransistors,theproblemofoptimizationisjustasimportantasinthepast.Indeed,thereisnopointinincurringthehugeexpenseandeffortofdevelop……

Adualbias-feedcircuitdesignforSiGeHBTlow-noiselinearamplifier414IEEETRANSACTIONSONMICROWAVETHEORYANDTECHNIQUES,VOL.51,NO.2,FEBRUARY2003ADualBias-FeedCircuitDesignforSiGeHBTLow-NoiseLinearAmplifierEijiTaniguchi,Member,IEEE,TakayukiIkushima,KenjiItoh,Member,IEEE,andNoriharuSuematsu,Member,IEEEAbstract―AnSiGeHBTlow-noiseamplifier(LNA)withanoveldiode/resistordualbasebias-feedcircuitisdescribed.Thedualbias-feedcircuitextends1dBwithoutdegradationofthenoisefigure(NF).Inthesmall-signalregion,aconventionalresistorbias-feedcircuitisadominantbasecurrentsourceand,inthelarge-signalregion,thediodeturnsonandthediodebias-feedcircuitsuppliesthebasecurrentlikeavoltagesource,whichallowshigheroutputpowerandlinearity.Inthispaper,theoperationprinciple……

2006AnovelCMOSlow-noiseamplifierdesignfor3IEEETRANSACTIONSONCIRCUITSANDSYSTEMS―I:REGULARPAPERS,VOL.53,NO.8,AUGUST20061683ANovelCMOSLow-NoiseAmplierDesignfor3.1to10.6-GHzUltra-Wide-BandWirelessReceiversYangLu,KiatSengYeo,AlperCabuk,JianguoMa,SeniorMember,IEEE,ManhAnhDo,SeniorMember,IEEE,andZhenghaoLuAbstract―Anultra-wideband(UWB)3.1-to10.6-GHzlow-noiseamplier(LNA)employingacommon-gatestageforwidebandinputmatchingispresentedinthispaper.Designedinacommercial0.18-m1.8-VstandardRFCMOStechnology,theproposedUWBLNAachievesfullyon-chipcircuitimplementation,contributingtotherealizationofasingle-chipCMOSUWBreceiver.TheproposedUWBLNAachieves16708dBpowergainwithagoodinputmatch(S119dB)overthe7500-MHzbandwidth(from3.1GHz……

A3-10-GHzlow-noiseamplifierwithwidebandLC-laddermatchingnetworkIEEEJOURNALOFSOLID-STATECIRCUITS,VOL.39,NO.12,DECEMBER20042269A3……

CMOSlow-noiseamplifierdesignoptimizationtechniquesIEEETRANSACTIONSONMICROWAVETHEORYANDTECHNIQUES,VOL.52,NO.5,MAY20041433CMOSLow-NoiseAmplifierDesignOptimizationTechniquesTrung-KienNguyen,Chung-HwanKim,Gook-JuIhm,Moon-SuYang,andSang-GugLeeAbstract―Thispaperreviewsandanalyzesfourreportedlow-noiseamplifier(LNA)designtechniquesappliedtothecascodetopologybasedonCMOStechnology:classicalnoisematching,simultaneousnoiseandinputmatching(SNIM),power-constrainednoiseoptimization,andpower-constrainedsimultaneousnoiseandinputmatching(PCSNIM)techniques.VerysimpleandinsightfulsetsofnoiseparameterexpressionsarenewlyintroducedfortheSNIMandPCSNIMtechniques.Basedonthenoiseparameterequations,thispaperprovidesclearunderstandingofthedesignprinciples,funda……

Adesignideaforawhite-noisegeneratorisrealizedandrevised.Twolow-noiseamplifiers(LNAs)incascadeamplifythenoiseproducedbyareverse-biasedZenerdiodeoperatinginjunction-breakdownmode,producingwhitenoisewithabandwidthofseveralhundredmegahertz.Thetestresultsshowthatafairlywidebandwhitenoisecanbegeneratedusingseveralinexpensivecomponents.……