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10-1
Chapter Ten
Integrated Circuit Biasing
and Active Loads
McGraw-Hill
Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved.
Figure 10.2
10-2
(a) Basic two-transistor current source; (b) two-transistor current
source with reference resistor R1
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Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved.
Figure 10.5
10-3
Basic-three-transistor current source
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Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved.
Figure
10.6
(a) Two-transistor current mirror; (b) three-transistor current mirror;
(c) variation in bias currents with a change in ß
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10-4
Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved.
Figure 10.7
10-5
(a) Bipolar cascode current mirror; (b) small-signal equivalent circuit
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Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved.
Figure 10.9
Widlar current source
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10-6
Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved.
Figure 10.10
(a) Small-signal equivalent circuit for determining output resistance of Widlar
current source, (b) simplified equivalent circuit for determining output resistance,
and (c) equivalent circuit after a Norton transformation
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10-7
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Figure 10.17
MOSFET current source
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10-8
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Figure 10.19
MOSFET cascode current mirror
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10-9
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Figure 10.20
10-10
Equivalent circuits of the MOSFET cascode current mirror for
determining output resistance
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Figure 10.23
Bias-independent MOSFET current mirror
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10-11
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Figure 10.28
Bipolar common-emitter circuit
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10-12
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Figure 10.30
Voltage transfer characteristics of bipolar circuit with active load
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10-13
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Figure 10.37
10-14
(a) Simple BJT amplifier with active load and load resistance and
(b) small-signal equivalent circuit
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Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved.
Figure 10.39
10-15
(a) Simple MOSFET amplifier with active load and load resistance and
(b) small-signal equivalent circuit
McGraw-Hill
Copyright © 2001 by the McGraw-Hill Companies, Inc. All rights reserved.