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Practical Op-Amp Integrator Lab


Design a practical integrator using an "ideal" operational amplifier and characterize its performance in various regions of operation.

1. Design a practical integrator to operate accurately at f = 5kHz (and above) and with the magnitude of the gain = 1 for a 5kHz sinewave input. Use standard values for resistors and capacitors. Your design must not clip for any of the input waveforms in Section 2 below.

2. For the integrator designed above predict and sketch Vo for:

A. Vin = 1V sin 2π (10kHz) t
B. Vin = 1V sin 2π (50kHz) t
C. Vin = 1V sin 2π (100Hz) t
D. Vin = 10kHz squarewave, ± 2V
E. Vin = 10kHz squarewave, -1V to +3V

3. Construct the circuit designed in Section 1 above:

A. Verify its performance.

B. Verify the predictions made in 2A through 2E above by sketching your measured output.

4. Construct a model of your "ideal" op amp, and simulate your integrator on PSPICE for the waveforms in Section 2. Compare results by sketching your simulated output waveform with predicted and measured waveforms.

Lab Notes

Lab Data

Electrical Engineering lab key words: opamp, operational amplifier integration, characteristics, clipping, AC analysis, circuit, DC, input signals, sin, predictions, measured value, simulation, Pspice, waveforms, sinewave, squarewave, products.

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