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Problem: A op-amp has unity-gain bandwidth of 105Hz. Its gain at very low frequency is 80 dB. You are using the op-amp in the inverting configuration with a signal that is at about 10 kHz. The op amp has a 10kΩ resistor in the feedback position and a 3 kΩ resistor in the input position. (It is also important to note that the open-loop gain of the op-amp has single pole).
a. Find the open-loop gain of the op-amp at 10kHz in unit of V/V
b. Find the corner frequency of the op-amps open loop gain
c. Find the straight-through (Forward path) gain of this configuration at 10 Khz
d. Find the loop gain of this configuration at 10 kHz.
e. Find the overall gain of this configuration at 10 kHz.
A semiconductor device is characterized by the idealized energy band diagram in the figure below. It is also known that EG = 1.12eV, ni = 1010 cm-3, and kT = 0.0259 eV. Also, μn = 1345 cm2 V-1 - sec-1 and μp =458cm2V-1-sec-1 atbothx=xa andx=xb.
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Calculate the ratio horizon for a 500-ft transmitting antenna and a receiving antenna of 20 ft. Calculate the required height increase for the receiving antenna if a 10% increase in the radio horizon were required.
a) Compute and plot the magnitude of the DFT for f(t) using "fftshift", assuming a sampling rate of 8000 Hz and a duration of 0.5 second. b) Window the samples of f(t) using a hann window
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