Current mirror and mismatch

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AMSA84

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Hi guys,

I would like to make a small experiment regarding current mismatch in a current mirror for different transistors area (or sizes).

I know that we have to do that using monte carlo (or maybe the dcmatch can work, I don't know). But the thing is how should I do the calculation to get the mismatch? And should I use any kind of special circuit alongside with the current mirror?

Regards.
 

I would use the Monte-Carlo simulation.
The result should be like the bigger transistors have lowest mismatch (standard deviation Std.Dev).

So, use the Std Dev parameter as a mismatch factor.
 

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