A current-mirror op amp is shown in Fig. 12.59. Assume all NMOS transistors are matched and all
Question:
(a) Calculate the model parameters in Fig. 12.7a. Assume the gates of M5, M7, and M9 connect to bias voltages.
(b) If the CMC input is the gate of M5 and the gates of M7 and M9 connect to a bias voltage, compute acmc.
(c) If the CMC input connects to the gates of M7 and M9 and the gate of M5 connects to a bias voltage, compute acmc.
(d) What are the output swing limits for each output? What value of VOC gives the maximum symmetric output swing?
Fig. 12.59:
Fig. 12.7 (a):
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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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