UNIVERSITY OF CALIFORNIA AT BERKELEY College of Engineering Department of Electrical Engineering and Computer Sciences EE105 Lab Experiments Report 10 Differential Amplifiers Name Lab Section 3 2 2 Measure IC1 IC2 IC3 and VOUT DC How do they compare with hand calculations IC1 IC2 IC3 VOUT DC 3 2 3 Sketch the waveforms at vin and vout 3 2 4 Measure the peak to peak voltages of vin and vout vin p p vout p p 1 2 3 2 5 Qualitatively describe how vout and vout are related Is this what you d expect 3 2 6 Measure the peak to peak voltage of vout vout and calculate the differential gain of the circuit Does this match the gain you calculated in the prelab vout p p ADM 3 2 7 What do you see at the output Why 3 2 8 Measure the gain Does it match your prelab calculations Does it match your result from 3 2 6 ADM 3 3 2 Sketch the output waveform Why isn t it sinusoidal 3 3 3 4 Calculate the differential gain of the amplifier with the added load ADM 3 3 5 Sketch vout What is the measured differential gain of the circuit How does it compare to your hand calculations Does it match the gain you observed in step 3 2 6 Should it ADM 3 4 1 Attach your netlist on a separate sheet 3 4 2 Use SPICE to find IC1 IC2 IC3 and Vout DC Compare these values with your calculations from the prelab and measurements in lab IC1 IC2 IC3 VOUT DC 4 3 4 3 Attach your plot on a separate sheet What is the gain as measured from the plot Does it match your hand calculations Does it match your measurements ADM
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