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AC analysis plotting (Read 3663 times)
aaron_do
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AC analysis plotting
Feb 15th, 2011, 12:32am
 
Hi all,


in the PAC analysis, I can directly plot gain (or effectively, any transfer function) in terms of magnitude, or the real and imaginary parts. However, I find that in the normal AC analysis, this is not possible. Is there any equivalent analysis I can use to directly plot gain in terms of the real and imaginary parts?


regards,
Aaron
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rfidea
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Re: AC analysis plotting
Reply #1 - Feb 16th, 2011, 5:33am
 
I assume that you are using the Virtuoso Analog Design Environment from Cadence? You can use the calculator to plot real and imaginary outputs from an AC analysis.
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aaron_do
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Re: AC analysis plotting
Reply #2 - Feb 17th, 2011, 6:33am
 
Hi,


thanks for the tip. But the AC analysis alone only plots voltages or currents, not gains. So it would take some manipulation in the calculator. In the PAC analysis it is done automatically. Actually I found that I can run a PSS with a semi-random beat frequency, and a PAC analysis on top of it to directly find the gain.


regards,
Aaron
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