Introductory Circuit Analysis (13th Edition)
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ISBN: 9780133923605
Author: Robert L. Boylestad
Publisher: PEARSON
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Transcribed Image Text:Quiz #5: For the feedback transconductance amplifier in the Figure. The
open-loop gain of opamp is A.
- Find expression for A, = 1,/Vs, and ß = loNr
- Find expression for A, = 1,/Vs, and B = 1/V, if A = 0
%3D
I.
Vs E
Rz
mun
Ru
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- Consider a voltage series feedback network, where amplifier gain = 100, feedback factor = 5. For the basic amplifier, input voltage = 4V, input current=2mA. Find the input resistance of the network.arrow_forwardOne way to measure the slew-rate limitation of an op amp is to apply a sine wave (or square wave) as the input to an amplifier and then increase the frequency until the output waveform becomes triangular. Suppose that a 1-MHz input signal produces a triangular output waveform having a peak-to-peak amplitude of 4 V. Determine the slew rate of the op amp.arrow_forward5. The open-loop gain of a certain op-amp is 175,000. Its common-mode gain is 0.18. Determine the CMRR in decibels. 6. An op-amp datasheet specifies a CMRR of 300,000 and an A, of 90,000. What is the common-mode gain?arrow_forward
- Assume that the R2/R1 ratio of a feedback amplifier with voltage supply of +/- 10 V is 3.0 and that a value of 1.0 V is applied to the non inverting input of the op-amp. What is the output voltage value?arrow_forwardThanksarrow_forwardA certain op-amp is used in a feedback configuration having a gain of 20 and a bandwidth of 500 kHz. a)If the external resistor values are changed to increase the gain to 40, what is the new bandwidth? The new bandwidth is 250khz What is the unity-gain bandwidth of the op-amp ??arrow_forward
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