Monte carlo model for matching

[tritue truong]

Hi all,

I use monte carlo analysis but I have a hard time trying to model the
mismatch

We can modelize the mismatch using "statistics" block with "process" and
"mismatch". However, the mismatch factor of a transistor/resistor/ capacitor
is area dependant.
Any body has any idea how to do it?

Thank you

 

[fogh]

tritue truong wrote:

Hi all,

I use monte carlo analysis but I have a hard time trying to model the
mismatch

We can modelize the mismatch using "statistics" block with "process" and
"mismatch". However, the mismatch factor of a transistor/resistor/ capacitor
is area dependant.
Any body has any idea how to do it?

Thank you


If I remeber well, you should see the spread decrease with square root of device area. When you have the luck to have access to extensive chracterisation data, you could also look at the effect of aspect ratio.