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VFB与CFB比较2

上传者: 2022-10-15 04:05:24上传 PDF文件 55.83 KB 热度 20次

VFB与CFB比较2MT-058TUTORIALEffectsofFeedbackCapacitanceonVFBandCFBOpAmpsItisquitecommontouseacapacitorinthefeedbackloopofaVFBopamp,toshapethefrequencyresponseasinasimplesingle-polelowpassfiltershowninFigure1below.TheresultingnoisegainisplottedonaBodeplottoanalyzestabilityandphasemargin.Stabilityofthesystemisdeterminedbythenetslopeofthenoisegainandtheopen-loopgainwheretheyintersect.R1C2AR2

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