Question

Estimate the magnitude of the loop gain of the circuit .The
op-amp has the following parameters: differential input resistance,
r_{d} = 1 M?, output resistance, r_{o} = 100 ?,
open-loop gain, A_{ol} = 10^{5}. Assume
R_{1} = 24.01 k? and R_{2} = 5.89 k?

Answer #1

so final answer magnitude of loop gain=83.723

1. Calculate the input difference in potential (eNI − eINV) for
an op amp amplifier with an output voltage of 10 V and an open loop
gain of
a. 2000
b. 30,000
2. Locate specifications for the LM741 and the LF411 (National
Semiconductor). For each determine the worst case a. input
impedance.
b. open loop gain
c. gain bandwidth.
3. Assuming β = 0.05, and AOL = 2000, calculate the closed loop
gain using the approximation.

Consider an op-amp connected in an inverting configuration to
realize a closed-loop gain of -100 V/V utilizing resistors of 1k
and 100 k. A load resistance RLis connected from the output to
ground, and a low-frequency sine-wave signal of peak amplitude
Vpeakis applied to the input. Let the op amp be ideal except that
its output voltage saturates at 10 Vand its output current is
limited to the range of 20 mA.
1) For RL = 1k, what is the...

Using a 741 op-amp for every stage, design this circuit:
The input stage has a voltage gain of 10 and input impedance of
50 K?.
The low pass filter stage has a Sallen-Key (VCVS) third order
butterworth response and a cutoff frequency of 5KHz.
The output buffer stage has a voltage gain of 10.

Use an ideal op amp to design a differentiator circuit having a
time constant of 10-5s using a 1-nF capacitor. Sketch
the magnitude and phase response of the circuit, indicating the
frequency at which the magnitude response equals 0 dB. A series
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How does the phase response...

Consider the following series circuit with a 105 volt battery
and three resistors; R1=4 ohm, R2=5 ohm, and R3=6 ohm a) Will the
current in this circuit flow clockwise or counterclockwise? Explain
your reasoning in three lines or less. b) What is the equivalent
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c) Draw the equivalent simple circuit. d) Find the current in the
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ch 6
1:
It is generally a good idea to gain an understanding of the
"size" of units. Consider the objects and calculate the kinetic
energy of each one.
A ladybug weighing 37.3 mg
flies by your head at 3.83 km/h
.
×10
J
A 7.15 kg
bowling ball slides (not rolls) down an alley at 17.5 km/h
.
J
A car weighing 1260 kg
moves at a speed of 49.5 km/h.
5:
The graph shows the ?-directed force
??...

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