For the three-stage op amp with nested Miller compensation in Fig. 9.30c, determine the values of the

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For the three-stage op amp with nested Miller compensation in Fig. 9.30c, determine the values of the compensation capacitors that give a 45—¦ phase margin when the op amp is in a unity-gain negative feedback loop (f=1). Assume that the zeros due to feed forward have been eliminated. Design for widely spaced real poles. Take R= R= R= 5 kΩ, C= C1= 0.5 pF, and C2= 6 pF. Use gm0= gm1and gm2 = 6gm1.

Figure 9.30 c:

Cm2 Cm1 Vo V2 V1 C2 R1 8m1'1 Sm2'2 i, = 8movin Ro in

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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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