PowerPoint PresentationSlide 2Slide 3Slide 4Slide 5Slide 6Slide 7Slide 8Slide 9Slide 10Slide 11Slide 12Slide 13Slide 14Slide 15Slide 16Slide 17Slide 18Slide 19Slide 20Chapter 2 – Operational AmplifiersIntroductionhttp://engr.calvin.edu/PRibeiro_WEBPAGE/courses/engr311/Handouts/OpAmp-tutorial-1.pptTextbook CDhttp://www.clarkson.edu/%7Esvoboda/eta/designLab/InvertingAmplifierDesign.htmlThe OP-AMP TerminalsSymbolPower SuppliesExercise 2.1The Ideal OP-AMP-V-VSSvvididInvertingInvertingNoninvertingNoninvertingOutputOutput++__ii(-)(-)ii(+)(+)vvOO = A = AddvvididRROOAARRiiOpen-loop gainExercise 2.2Analysis of Circuits Containing Ideal OP-AMPS The Inverting ConfigurationThe inverting closed-loop configuration.Closed-Loop GainVirtual Short-CircuitVirtual GroundNegative and Positive FeedbackAnalysis of Circuits Containing Ideal OP-AMPS The Closed-Loop GainAnalysis of the inverting configurationAnalysis of Circuits Containing Ideal OP-AMPS Effect of Finite Open-Loop Gaini1vIvoAR1vIvoAR1vovoAi1R2voAvIvoAR1R2GvovIR2R111R2R1AAnalysis of Circuits Containing Ideal OP-AMPS Example 2.1Analysis of Circuits Containing Ideal OP-AMPS Input and Output ResistancesRivIiIvIvIR1R1Ro0Analysis of Circuits Containing Ideal OP-AMPS Example 2.2Analysis of Circuits Containing Ideal OP-AMPS ExercisesOther Applications of the Inverting Configuration With General ImpedancesOther Applications of the Inverting Configuration Example 2.3A difference amplifier.Applications of superposition to the analysis of the current circuit of Fig.. 2.21.Finding the input resistance of the difference amplifier.Representation of the common-mode and differential components of the input signal to a difference amplifier. Note that v1 = vCM - vd/2 and v2 = vCM + vd/2.(a) A popular circuit for an instrumentation amplifier. (b) Analysis of the circuit in (a) assuming ideal op-amps. (c) To make the gain variable, R1 is implemented as the series combination of a fixed resister R1f and a variable resistor R1v. Resistor R1f ensures that the maximum available gain is limited.Open-loop gain of a typical general-purpose internally compensated op amp.(a) Unity-gain follower. (b) Input step waveform. (c) Linearly rising output waveform obtained when the amplifier is slew-rate limited. (d) Exponentially rising output waveform obtained when V is sufficiently small so that the initial slope (wtV) is smaller then or equal to SR.Effect of slew-rate limiting on output sinusoidal
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