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Transcript of © 2000 Prentice Hall Inc. Basic BJT differentiial amplifier. · © 2000 Prentice Hall Inc. Figure...
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©2000 Prentice H
all Inc.
Figure 7.22 Basic B
JT differentiialamplifier.
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©2000 Prentice H
all Inc.
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©2000 Prentice H
all Inc.
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all Inc.
Figure 7.23a Basic B
JT differential amplifier w
ith waveform
s.
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all Inc.
Figure 7.23b Basic B
JT differential amplifier w
ith waveform
s.
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Figure 7.24 pnpem
itter-coupled pair.
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Figure 7.25 Collector currents versus differential input voltage.
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Figure 7.26 Voltage transfer characteristic of the B
JT differential amplifier.
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Figure 7.27 Differential am
plifier with em
itter degeneration resistors.
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Figure 7.28 Voltage transfer characteristic w
ith emitter degeneration resistors. R
EF = 40(VT /IEE ).
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Figure 7.29 Either a balanced or single-ended output is available\break from the differential am
plifier.
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Figure 7.31 Answ
ers for Exercise 7.10.
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Figure 7.32 Answ
ers for Exercise 7.11.
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Figure 7.33 Small-signal equivalent circuit for the
differential amplifier of Figure 7.27. (R
EB is the output impedance of the current source IEE .)
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Figure 7.34 Half-circuit for a differential input signal.
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Figure 7.35 Small-signal equivalent circuit w
ith a pure comm
on-mode input signal.
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Figure 7.36 Half-circuit for a pure com
mon-m
ode input signal.
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Figure 7.30 Emitter-coupled pair w
ith current-mirror load.
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Figure 7.37 Emitter-coupled pair of Exercise 7.13.
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Figure 7.39 First attempt in Exam
ple 7.4.
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Figure 7.40 Differential am
plifier of Example7.4 using the W
ilson current source.
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Figure 7.41 Differential am
plifier of Example 7.4.
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Figure 7.42a Waveform
s for the differential amplifier of Exam
ple 7.4.
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Figure 7.42b Waveform
s for the differential amplifier of Exam
ple 7.4.
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Figure 7.42c Waveform
s for the differential amplifier of Exam
ple 7.4.
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Figure 7.43 Source-coupled differential amplifier.
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Figure 7.44 Drain currents versus norm
alized input voltage.
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Figure 7.45 Differential output voltage versus norm
alized input voltage.
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Figure 7.46 Small-signal equivalent circuit for the source-coupled am
plifier of Figure 7.43.(N
ote:R
SB is the output resistance of the bias current source I.)
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Figure 7.47 Source-coupled differential pair of Example 7.5.
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Figure 7.48 Differential and com
mon-m
ode voltage gains versus frequency for the circuit of Example 7.5.
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Figure 7.49 CM
OS op am
p.
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Figure 7.50 Small-signal equivalent circuit for the output stage consisting of M
7 and M2 .
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