12位100MSPS流水線ADC中的MDAC模塊研究.pdf

1、分類(lèi)號(hào)密級(jí)UDC注l學(xué)位論文12位100MSPS流水線ADC中的MDAC模塊研究(題名和副題名)羅敏(作者姓名)指導(dǎo)教師姓名于奇電子科技大學(xué)副教授成都(職務(wù)、職稱(chēng)、學(xué)位、單位名稱(chēng)及地址)稀專(zhuān)業(yè)學(xué)位級(jí)別碩士專(zhuān)業(yè)名稱(chēng)微電子學(xué)與固體電子學(xué)論文提交日期2008.5論文答辯日期2008.5學(xué)位授予單位和日期電子科技大學(xué)答辯委員會(huì)主席評(píng)閱人2008年月日注1:注明《國(guó)際十進(jìn)分類(lèi)法UDC》的類(lèi)號(hào)。ABSTRACTABSTRACTInthispaPer

2、，accordingtothesystemrequirementof12bitlo0MSpSPipelineADC，theinflueneesofMDACtothesystemareeonsidered.ThearchitectureofMDACbasedonoPamPsh碩ngteehniqueCFCS(Cnrnutatedfeedback一eaPaeitSwitching)teehnique15ProPosed.ThePerfman

3、eeofeveryunitinMDAC15analysed.Further，CaPacitorsealingdownteehnique15adoPtedtedueesystemPowerconsumPtionforbeterPerfmanee.InordertomeetthelowPowereonsumPtionrequiremeni，twosequentPIPelinestagesshareanoPamPinoPampsharingt

4、echnique，whiehreducesthentnbersofoPerationalamPlifierinPIPelineADC，andsavesPowerconsumPtionandehiPareaofthewholesystem.Meantime，indertogethigh一resolution，choosingdifl七renteapaeitorsasfeedbaekeapaeaitorintheamPlifieationP

5、haseofMDACaceordingtodifl七rentinPutsignalsinCFCSteehniquerelaxeseaPaeitormatehingrequirementfmanufact’Uringtechnology，andimProvessystemlinearity.IneircuitrealizationofMDAC，gain一boostedtranseonductanceoPerationalamPlifier

6、15usedinMDAC.Tomakesurethestabilityofthesystem，Switehed一eapaeittyPeandeontinuous一timetyPeeonunon一modefeedbackeireuitsaredesignedfmainoPamPandtwoadditionaloPamPsresPeetively.ThetotaloPamPsharedbythefirst一stageandtheseeond

7、一stageMDACgetsadegainof102dB，unitygainbwidthof1.288GHz，Phasemarginof66.60.ItsPowerconsumPtion1534.lmw.Wllile，ThetotaloPamPsharedbythethird一stageandthefth一stageMDACgetsadcgainof97.8dB，unitygainbandwidthof691.8MHz，andPhase

8、marglnof83“.ItsPowerconsumPtion1510.3mw.BasedontheSMIC0.18林耐3.3VsilieonCMOSProeessmodel，everyMDAChasbeensimulatedinCadeneesimulationellvironment.Theresultsshowthat，thefirst一stageMDACreachessettlingfinalvalueof499.69mV，sl