11-1 mcgraw-hill copyright © 2001 by the mcgraw-hill companies, inc. all rights reserved. chapter...
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McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved.
11-1Chapter Eleven
Differential
and
Multistage Amplifiers
McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved.
11-2Figure 11.2
Basic BJT differential-pair configuration
McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved.
11-3Figure 11.3Basic diff-amp with applied common-mode voltage and (b) basic diff-amp with applied differential-mode voltage
McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved.
11-4Figure 11.7(a) Equivalent ac circuit, diff-amp with differential-mode input signal and two-sided output voltage and (b) ac equivalent circuit with one-sided output
McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved.
11-5Figure 11.8
Small-signal equivalent circuit, bipolar differential amplifier
McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved.
11-6Figure 11.12
(a) Equivalent ac circuit, diff-amp with applied sinusoidal differential-mode input signal, and resulting signal current directions and (b) differential-mode half-circuits
McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved.
11-7Figure 11.13
(a) Equivalent ac circuit of diff-amp with common-mode input signal, and resulting signal current directions and (b) common-mode half circuits
McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved.
11-8Figure 11.22
AC equivalent circuit, MOSFET differential amplifier
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11-9Figure 11.23
Small-signal equivalent circuit, MOSFET differential amplifier
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11-10Figure 11.24
MOSFET cascode current source
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11-11Figure 11.28
BJT differential amplifier with active load
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11-12Figure 11.30
BJT differential amplifier with three-transistor active load, showing the signal currents
McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved.
11-13Figure 11.31
(a) Small-signal equivalent circuit BJT differential amplifier with active load and (b) rearrangement of small-signal equivalent circuit
McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved.
11-14Figure 11.33
The ac equivalent circuit, MOSFET differential amplifier with active load
McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved.
11-15Figure 11.34(a) Small-signal equivalent circuit, MOSFET differential amplifier with active load and (b) rearranged small-signal equivalent circuit
McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved.
11-16Figure 11.37A MOSFET cascode diff-amp with a cascode diff-amp
McGraw-Hill Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved.
11-17Figure 11.46
BJT diff-amp with three-transistor active load, Darlington pair gain stage, and simple emitter-follower output stage