maritimetrainer Quiz Question 30 of 30 30. Which function is this operational amplifier circuit performing? Non-inverting amplifier Differentiator Inverting amplifier Integrator Back fid 4 5 6 ?????
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The operational amplifier (op-amp) has a capacitor connected to its inverting input (-) and a resistor in the feedback loop. Show more…
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INTEGRATOR The name "operational amplifier" came from this amplifier's ability to perform mathematical operations. Two good examples of this are the integrator and differentiator which perform the operations of integration and differentiation, respectively. Construct the integrator shown in figure 6. Sketch the input and output waveforms for 1kHz sine wave, triangle wave, and square wave inputs. Try to guess what each waveform will look like ahead of time. For your report, include your sketches and show that the output waveform is indeed the integral of the input waveform. Note that the 10MΩ resistor (a very large value) is not in the ideal integrator circuit. What is it there for? (Think about what would happen if a small DC component was present in the input waveform. What would integrating this constant do after a short time?). Try removing it and describe what happens. Briefly discuss this in your report. DIFFERENTIATOR Construct the differentiator circuit in figure 7. Sketch the input and output waveforms for a 1kHz sine wave, triangle wave, and square wave input as for the integrator. For your report, include your sketches and show that the output waveform is indeed the derivative of the input waveform. Note here that the 100 pF capacitor (a very small value) is not in the ideal amplifier. Why do you think it is here? (Think about the derivative of a square wave, for example. Could high voltages damage a chip or put a significant noise into the circuit?) Briefly discuss this in your report.
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An operational amplifier (Op Amp) has which of the following characteristics? It has a trim function When both inputs are used, the results are added It uses an external power supply to amplify the input signal It has a characteristic gain built in It can be used to perform mathematical operations It may be used to process either current or voltage input When a feedback loop is in place, noise is reduced
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