Use Blackmans impedance formula to find the output resistance of the active-cascode current source in Fig. 8.55.
Question:
(a) Carry out the calculations with respect to controlled source gm2.
(b) Repeat the calculations with respect to the voltage-controlled voltage source a in the amplifier.
(c) Compare the results of (a) and (b).
Fig. 8.55:
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Related Book For
Analysis and Design of Analog Integrated Circuits
ISBN: 978-0470245996
5th edition
Authors: Paul R. Gray, Paul J. Hurst Stephen H. Lewis, Robert G. Meyer
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