Determine what is the time constant for charging of devices

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Reference no: EM13288213

Devices: LM555 Timer, LM 1458 dual op amp (ortwo LM741 op amps), MPF102 n-channel JFET, 1 kohm, 2.7 kohm, 1Mohm, 0.01μF, and a 0.1μF.
1. Using the devices above, please construct the 555circuit. use circuit-building software you want andmeasure and record the frequency and the duty cylcle of theoutput. Also, include the picture of the constructed circuit.
2. Construct the 555 circuit without the 0.01μF capactitor. (1.5-V pk-pk sine with a +4.5 V offset) Observeand sketch the output of the circuit for a 200 Hz inputsinusoid.
3. Increase the frequency of the input sinusoid to 400Hz, 500 Hz (the Nyquist frequency), and 600 Hz. Comment onthe sampling waveforms, your understanding of the Nyquist criteria,and the ability to generate the original waveform from thesamples at each of these frequencies.
4. Place the 0.01μF capacitor in the circuit andrepeat step 2.
5. For the Sample & Holding circuit, if the outputimpedance of the first op amp is 1Ω and the drain-source resistance of the JFET is 99Ω, what is the time constant for charging the 0.01μF capacitor?

Reference no: EM13288213

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