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Problem with opamp wide swing mirror

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Bode82

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Hi,I'm a problem with my project of a opamp wide swing mirror with gm/id methode.
I'dont understand because the results of matlab code (see the file opamp.m in the zip pack) don't correspond(don't correspond the w of any mos that in winspice file are all w=0.09u) at the spice file (see opamp.cir).May be I mistake something in te code matlab,can you help me (sorry but the comment of the matlab code are in Italian,if there is a problem with the translation replay always in this topic)
The circuit is in the file word opamp
 

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