Transcript Slide 1 - Oxford University Press

Figure 9.23 The CS circuit at s = sZ. The output voltage Vo = 0, enabling us to determine sZ from a node equation at D.
Microelectronic Circuits, Sixth Edition
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Copyright © 2010 by Oxford University Press, Inc.
Figure 9.24 (a) High-frequency equivalent circuit of the common-emitter amplifier. (b) Equivalent circuit obtained after Thévenin theorem has
been employed to simplify the resistive circuit at the input.
Microelectronic Circuits, Sixth Edition
Sedra/Smith
Copyright © 2010 by Oxford University Press, Inc.
Figure 9.25 (a) High-frequency equivalent circuit of a CS amplifier fed with a signal source having a very low (effectively zero)
resistance. (b) The circuit with Vsig reduced to zero. (continued)
Microelectronic Circuits, Sixth Edition
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Copyright © 2010 by Oxford University Press, Inc.
Figure 9.25 (continued) (c) Bode plot for the gain of the circuit in (a).
Microelectronic Circuits, Sixth Edition
Sedra/Smith
Copyright © 2010 by Oxford University Press, Inc.
Figure 9.26 (a) The common-gate amplifier with the transistor internal capacitances shown. A load capacitance CL is also included. (b) Equivalent
circuit for the case in which ro is neglected.
Microelectronic Circuits, Sixth Edition
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Copyright © 2010 by Oxford University Press, Inc.
Figure 9.27 Circuits for determining Rgs and Rgd.
Microelectronic Circuits, Sixth Edition
Sedra/Smith
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Figure 9.28 The CG amplifier circuit at midband.
Microelectronic Circuits, Sixth Edition
Sedra/Smith
Copyright © 2010 by Oxford University Press, Inc.