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phase margin in opamp circuit (Read 101 times)

Evgenii Community Member Offline Posts: 34	phase margin in opamp circuit Jun 15^th, 2009, 7:29am Hi! Cmos opamp (two-stage, repeater) has output on I/O pad. Complex capacitance of this pad may has different amount, say, 10-15pF. How to disable auto-oscillations of this repeater w/o using big internal cap... Thanks!
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raja.cedt Senior Fellow Offline Posts: 1516 Germany	Re: phase margin in opamp circuit Reply #1 - Jun 15^th, 2009, 10:34am hi, what do you mean by repeater, could be please give some more information regarding your opamp? Thanks, rajasekhar.
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Evgenii Community Member Offline Posts: 34	Re: phase margin in opamp circuit Reply #2 - Jun 16^th, 2009, 1:30am Hi! Thanks for you reply! attached repeater1.pdf work ranges: VDD (3 V-6V) V_in (0.25 V - (VDD-2) V) R_load (3KOhm - 300kOhm) C_load (3-15pF) I mean need in some cascode schematic... Thanks.
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