集成运放在峰值保持电路中的应用研究OPA615

28120132JournalofBeijingInformationScienceandTechnologyUniversityVol．28No．1Feb．20131674－6864201301－0047－04100192。2。TN78AApplicationofintegratedoperationalamplifiertopeakholdingcircuitYANGFeiCHENFu-binSchoolofAutomationBeijingInformationScienceandTechnologyUniversityBeijing100192ChinaAbstractPeakholdingcircuitdesignedwithintegratedoperationalamplifierIOAisresearched．Thecircuitcanbeusedforsignalamplifyingandpeakholding．Thenthegeneralintegratedoperationalamplifierandoperationaltrans-conductanceamplifierOTAareintroducedincludingtheirrelationshipadvantagesanddisadvantages．What’smorethelinearityperformanceofthecircuitsareanalyzedbysimulatingandmeasurement．KeywordsintegratedoperationalamplifierIOApeakholdingcircuitimpulse2012-09-1091512233021982－、。01－3。＞1MHz＞20V/μs＜200×10－6010V＜500ns＜1μs2060A/D。———。。2080。4－6。。7－8。2811。CSAPSA。DSP。11。2。22。22。2U13。。3t1VCVit1D1Vp4Vp=∫t0+t1t0AVit－Vot/CZd+ZCdt1ZdZCD1CA。A。。4。4Iri=gVi－Vo2gViVo。Vp=∫t0+t1t0gVit－Vot/Cdt323Vc=VpVi-Voit1i。i=gVi－Vo=Vo1/jωC48414Hω=VoVi=11+jωcg5ωT=g/C1。107Ω。。33.1。。1MHz2～3μsNILF3571012Ω20MHz5。。56。6PCB7。3.2TIOP6158。OPA615OTA。、、SOTA。SOTA。7。9428897。94。。1BuckensPFVeatchMS．Ahighperformancepeak-detectandholdcircuitforpulseheightanalysisJ．IEEETransactionsonNuclearScience1992394753－7572．J．1997174241－2463KruiskampMWLeenaertsDMW．ACMOSpeakdetectsampleandholdcircuitJ．IEEETransactionsonNuclearScience1994411295－2984．J．2009292379－3805．J．2004246568－5706．J．2005255519－5217．J．200929142－458．J．2001164104－1079．M．4．201040－5605