Lab12 Op Amp II

Lab12 Op Amp II - Title: Op Amp II Richard Madison Haynie...

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Title: Op Amp II Richard Madison Haynie Partner: Casey Hayes (All graphs are attached to back) Objective: Operational amplifiers (op amps) have many uses in modern day circuits. One use of an op amp is very high voltage gain and lower output impedance. Op amps are not as perfect as advertised earlier however. In this lab some of these imperfections will be examined including slew rate. Op amps will also be used to create integrating and differentiating circuits. Along with these circuits rectifiers and an active clamp will also be constructed. Any imperfections in these circuits will be examined and analyzed. Slew Rate: The circuit shown in figure-1 was constructed. The circuit was driven with a 1kHz square wave and the slew rate was found by calculating the slope of the transition shown in graph-1. Using this graph the slew rate is 3040000V/s. Next the circuit was driven with a sine wave and the frequency was found where the output amplitude starts to decrease shown in graph-2. The slew rate limits the amplitude of an undistorted sine-wave output swing above some critical frequency. The slew rate can be found using this frequency and is equal to 2πV out f=5030000V/s. The rated slew rate for this op amp is 15000000V/s which has a 79.7% discrepancy from the square wave and a 66.4% discrepancy from the sine wave. There is a 39.6% discrepancy between the square wave and the sine wave. The amplitude of the input was
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Lab12 Op Amp II - Title: Op Amp II Richard Madison Haynie...

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