ECE 3235 Electronics IIBasic Application of OpAmp II2.The integrator circuitFigure3 Integrator Circuit.Construct the circuit of Figure 3. This is an inverting integrator if the frequency of the input signal is “high enough.” To verify this, apply a 5-kHz 80mV (peak-to-peak) square wave to the input and observe the output.1) The theoretically expected slopes of the triangular output are (Vm/R*C, where Vm is the peak value of the square-wave input. Are they?2) What happens to the linearity of the output as the input frequency is decreased?3) What is the function of R’ in this circuit?3. The differentiator circuitFigure 4 Differentiator CircuitBuild the circuit of Figure 4. This is a differentiator circuit. Apply a 2V peak-to-peak sinusoid wave at f1 = 100 Hz, f2 = 1 kHz, and f3 = 10 kHz to the input and observe the output.ECE 3235 Electronics IIExperiment # 3Basic Application of OpAmp IINote: you might want to bring a calculator to the lab1. General Information Figure 1 OpAmp 741 Pinout.Figure1 shows the pin configuration for the famous 741 operational amplifier (OpAmp).Note that there is no ground pin. As shown in figure 2, you must define ground as thecommon connection between the positive and negative DC supplies, which will be ±15 Vthroughout this and following experiments. This ground node must always be yourcommon ground for all instruments and elements in the circuit. Figure 2 OpAmp 741 Pinout with Power Supply.12.The integrator circuitFigure3 Integrator Circuit.Construct the circuit of Figure 3. This is an inverting integrator if the frequency ofthe input signal is “high enough.” To verify this, apply a 5-kHz 80mV (peak-to-peak)square wave to the input and observe the output.1) The theoretically expected slopes of the triangular output are (Vm/R*C, where Vm isthe peak value of the square-wave input. Are they?2) What happens to the linearity of the output as the input frequency is decreased?3) What is the function of R’ in this circuit?Apply a low-frequency 10Hz 80mV (peak-to-peak) sinusoid to the input.4) Measure the gain and phase shift at 10Hz. Are these values the same as those foundfor the inverting amplifier in Lab 2? 5) Additionally, measure accurately the –3 dB frequency fc and the phase there, as wellas the gain and phase at 10fc and 20fc.6) What is the high-frequency roll-off in dB/octave?Finally, apply a 5-kHz triangular wave to the input.7) Sketch on the same set of axes the input and output waveforms showing key amplitudesand times.8) What is the ratio of the peak-to-peak values of Vout and Vin?9) What would be the theoretical ratio of Vout and Vin? Compare that to the value in 8).210) Remove the resistor R’, and apply a 50Hz, 500Hz, 5kHz and 50kHz sin wave input(80mv peak-to-peak), and sketch on the same axes the input and output waveforms. Anychanges compared to the case without R’?3. The differentiator circuitFigure 4 Differentiator CircuitBuild the circuit of Figure 4. This is a differentiator circuit. Apply a 2V peak-to-peak sinusoid wave at f1 = 100 Hz, f2 = 1 kHz, and f3 = 10 kHz to the input andobserve the output.1) Measure the peak voltage at the output for each frequency.2) Sketch the waveform for each frequency.3) Find the frequency where the input and output are at the same level. What is theirrelative phase (phase shift) at this point?4) Repeat the above measurements for the differentiator using a 2V p-p triangular waveat the same three frequencies.