Q6) An ideal voltage amplifier having a voltage gain of -1000 V/V has a 0.1-pF capacitance connected between its output and input terminals. What is the input capacitance of the amplifier? If the amplifier is fed from a voltage source Vsig having a resistance Rsig = 10 kn, find the transfer function Vo/Vsig as a function of the complex-frequency variables and hence the 3-dB frequency f and the unity-gain frequency ft.

Q6) An ideal voltage amplifier having a voltage gain of -1000 V/V has a 0.1-pF capacitance connected between its output and input terminals. What is the input capacitance of the amplifier? If the amplifier is fed from a voltage source Vsig having a resistance Rsig = 10 kn, find the transfer function Vo/Vsig as a function of the complex-frequency variables and hence the 3-dB frequency f and the unity-gain frequency ft.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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Concept explainers

Multistage Amplifier

The multistage amplifier is generally a voltage or power amplifier. The multistage amplifier has a number of single stage amplifier that are cascaded together. Since a single stage amplifier output is not useful, they are being replaced with multistage amplifiers or multistage transistor amplifiers. The multistage amplifier are used where the gain required is high or the input signal is very small such that only a single stage amplifier cannot amplify it.

Question

Q6) An ideal voltage amplifier having a voltage gain of -1000 V/V has a 0.1-pF capacitance
connected between its output and input terminals. What is the input capacitance of the amplifier?
If the amplifier is fed from a voltage source Vsig having a resistance Rsig = 10 kn, find the transfer
function Vo/Vsig as a function of the complex-frequency variables and hence the 3-dB frequency
fi and the unity-gain frequency ft.

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