1、湖南大學碩士學位論文電流反饋型運算放大器的設計及其應用姓名：胡磊申請學位級別：碩士專業(yè)：微電子學與固體電子學指導教師：曾云20080401碩上學位論文AbstractThedevelopinghistory，presentsituationandtrendsofCurrent—feedbackOperationalAmpliner(CFOA)wassummarizedinthispaperThedominanceandpropertie

2、softheCMOSintegratedCFOAwerealsodescribedTheinnuencingfactorofsubthresholdMOSFETbasedonCMOSprocesswereanalyzed，andpointedoutthattheMoSFETbasedonCMOSprocesswaseasiertobeintegratedinCMOScircuitthanBJTtransistorsDetailedlyn

3、arratethestructure，theoryofCFOA，anditsabstractvirtueagainstV6ltage—feedbackOperationalAmpli丘er(VFOA)，namelythefrequentindependentbandgapandinfiniteSlewRateAnalyzedthesecond—ordereffectsDesignCMOSsubcircuitsandthusthewhol

4、estructureThrou曲analysisoflotsofliteraturerelatedtoCFOA，thetwobuffersarethekeycellintheCFOAstructureInthispaper，weproposedabrandnewbuffbrthateliminatesthe’Voltagegapbetweenpositiveandnegativeinputoftheanlplifierinstaticc

5、ondition；besides，weadoptedrailtorailinputandpushpulloutputstructure，bothofthemwereperfectchoiceoflowpowerandlowV01tageenViroment；theactiVecurrentmirrorwhichdecreasetheoperatingVoltageandareaofthewholecircuitwasalsousedin

6、thestructureComparedwithCFOAthatproposedinpreViousliterature，thiscircuitpossesshigherSNRandprecision，lowerpowerdissipationWesimulatedtheCFOAcircuitwithsimulationtoolofHspice，applyed06∥聊CMOSprocessparameters(10wVth)：itsne

7、gatiVeandpositiVesupplywere15Vand15Vrespectively，Cc=5pfRc250kohm；Cout=1pfItspowerconsumptionwas2262mW；anditsinputresistorwas45kOhm，phasedegreewas535。，thedisparitybetweenthetwoinputswas3mv，thebandgapwas5MhZ，open—loopgainw

8、as100dB，anditsCMRRandPSRRare27dBand11dBrespectiVelyWedesignedanAnalog—to—DigitalConVerter(forCMOSImageSensor)basedonCFOA，observedfromsimulationtheADCbasedonCFOApossessedahigherspeed，broaderbandgapagainstitscounterpartsba

9、sedonVFOAItalsoshowedthatthiscircuitadoptedtolowVoltage，lowpower，highspeed，highfrequencycircuitsBasedonCFOA，weproposedoperationalcircuits，suchasmultiplieranddiVidor；integrator；nlter；oscillatorKeyWords：CurrentModeCircuit；