V in V out What is the gain of this amplifier? A)+10 B)-10 C)+11 D)-11 E)+0.1 100k 10k.
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Transcript of V in V out What is the gain of this amplifier? A)+10 B)-10 C)+11 D)-11 E)+0.1 100k 10k.
Vin Vout
What is the gain of this amplifier?
A) +10B) -10C) +11D) -11E) +0.1
100k
10k
Vin Vout
Describe the frequency dependence of this amplifier, assuming the op-amp is dominant pole compensated.
A) its like an RC high-pass filterB) like an RC low-pass filterC) independent of frequency out to fT
D) it has a gain of 2E) it has a gain of 3
20k
10k
Vin Vout
Suppose the unity gain frequency of the op-amp in this circuit is 20 MHz. What is the 3dB frequency of the amplifier?
A) 200 MHzB) 20 MHzC) 220 MHzD) 110 kHzE) 1.8 MHz
100k
10k
Vin Vout
Why not replace this circuit with an RC low-pass filter?
A) Good idea. The RC filter would be cheaper and more reliable.
B) No, this circuit has gainC) Good idea. The RC filter uses less power.D) Depends on how you plan to drive the circuitE) Depends of what the circuitwill drive
10k
10k
What is the gain?H3
20k
10k
VinVout
A) -0.5B) -2C) 3D) -0.333E) This circuit won’t work
What is the bandwidth of this circuit if the op-amp fT is 100 MHz?
H3
10k
1M
VinVout
A) 10 MHzB) 1 MHzC) 100 MHzD) 10 kHzE) This circuit won’t work
What is the input impedance of this circuit at low frequencies?
H3
10k
100k
VinVout
A) Very small, depends on A of op-ampB) Close to 100kC) Very large, depends on A of op-ampD) Close to 10kE) Cannot be determined
What is the output impedance of this circuit at low frequencies?
H3
10k
100k
VinVout
A) Very small, depends on A of op-ampB) Close to 100kC) Very large, depends on A of op-ampD) Close to 10kE) Cannot be determined
