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How to decide the input sign of the two stage op amp?
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joehwang



Joined: 23 Mar 2007
Posts: 23
Post15 Feb 2008 15:37   

How to decide the input sign of the two stage op amp?
In a two stage op amp, the positive input (plus sign) always connect to the gain stage (CS amp) as the attachment. Is there any reason for that?

Thanks!
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xuedashun



Joined: 30 Aug 2005
Posts: 55
Helped: 1
Post16 Feb 2008 6:31   

Re: How to decide the input sign of the two stage op amp?
it's up to output. if output is +, then M6 gate is - and M2 gate is +
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