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about folded cascode amplifier
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Hafedh



Joined: 15 Feb 2008
Posts: 112
Helped: 46
Location: Sfax, Tunisia
Post11 Aug 2008 8:50   

about folded cascode amplifier
hi
I'am studying the structure of fully differential folded cascode amplifier with cmfb.
about folded cascode amplifier

the simulatin result of the gain and the phase are as following :
about folded cascode amplifier

although the cutting frequency is 2.4MHz.
so, why the curve of the gain drop rapidly from 62db, normally it should remains constant until it reaches the cutting frequency.

thanks for your help...

*if you have any doc about this structure thanks to send it, in my personal e-mail : fendri.hafedh(at)hotmail.com
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imar



Joined: 24 Mar 2008
Posts: 119
Helped: 4
Post14 Aug 2008 14:08   

Re: about folded cascode amplifier
hi si hafidh!!!
i thinck you should verify the axes; it could be non logarithmics so every thing will not be ok
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