Microelectronics: Circuit Analysis and Design

4th Edition

ISBN: 9780073380643

Author: Donald A. Neamen

Publisher: McGraw-Hill Companies, The

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Textbook Question

Chapter 12, Problem 12.9P

(a) The open-loop low-frequency voltage gain of an amplifier is A v = 5 × 10 4 and the open-loop 3 dB frequency is f H = 10 Hz . If the closed-loop low-frequency gain is A v f = 25 , what is the closed-loop bandwidth? (b) The minimum closed-loop bandwidth of a feedback amplifier is to be 20 kHz . The open-loop low-frequency voltage gain is A v = 10 5 and the open-loop 3 dB frequency is f H = 8 Hz . What is the maximum closed-loop voltage gain?

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Chapter 12, Problem 12.8P

Chapter 12, Problem 12.10P

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Chapter 12 Solutions

Microelectronics: Circuit Analysis and Design

Ch. 12 - (a) The open-loop gain of an amplifier is A=5104...Ch. 12 - (a) Consider a general feedback system with...Ch. 12 - (a) A feedback amplifier has an open-loop...Ch. 12 - (a) Consider the circuit shown in Figure...Ch. 12 - (a) The closed-loop gain of a feedback amplifier...Ch. 12 - The gain factors in a feedback system are A=5105...Ch. 12 - Prob. 12.3TYU Ch. 12 - An ideal series-shunt feedback amplifier is shown...Ch. 12 - Consider the ideal shunt-series feedback amplifier...Ch. 12 - An ideal series-series feedback amplifier is shown...

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Solution Summary: The author explains that the formula for close loop bandwidth is given by lA_vf=

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Chapter 12 Solutions