Calculate the common-mode input range of the folded-cascode op amp in Fig. 6.28. Assume that all the

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Calculate the common-mode input range of the folded-cascode op amp in Fig. 6.28. Assume that all the transistors are enhancement-mode devices with |Vt|=1 V, and ignore the body effect. Also assume that the biasing is arranged so that |Vov|=0.2 V for each transistor. Finally, assume that M11and M12are biased at the edge of the active region.

Figure 6.28

VDp VBIAS1 M4 Mз M5 MẠA Мзл Vị M2 M1 CL VBIAS2 УBIAS? Мал M1A УBIAS3 УBIAS3 M12 M11 -Vss

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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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