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Stability on design two stage op-amp
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kingmaker



Joined: 03 Apr 2008
Posts: 22
Post04 Apr 2008 15:37   

Stability on design two stage op-amp
Anyone here can provide some tutorial or url that related stability on design two stage op-amp, eg. the effect of non-dominant pole & zero on stability, phase margin and etc...? thanks!
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277897909



Joined: 25 Mar 2008
Posts: 23
Helped: 1
Post05 Apr 2008 1:53   

Stability on design two stage op-amp
You can refer to any classic teaching material on analog IC design.
I recommend you Sansen's 'Analog Essential',which analysis the 2stage OTA in great detail.
Regards.
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mahgoub



Joined: 26 Oct 2007
Posts: 94
Helped: 2
Post05 Apr 2008 19:16   

Stability on design two stage op-amp
razavi book contains a chapter on two stage stability
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peterwang



Joined: 31 Oct 2007
Posts: 34
Helped: 4
Post06 Apr 2008 6:23   

Re: Stability on design two stage op-amp
Go to get a free 2-stage OPAMP ref design at:

http://yourcircuits.com/inc/sdetail/2559?xtr=pm_test

You can play with the phase margin issue using this real design.
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