information needed on the effect of backbias on mismatch

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mismatch with backbias?

Anyone got any information on the effect of backbias on mismatch? I have a circuit which is varying more than expected. The foundry model doesn't take the effect of backbias on the mismatch, which could be part of the problem. I found a few papers which showed mismatch was worse with backbias, particularly in weak inversion but only limited data so far.

Any data or links gratefully received.

Thanks,
R
 

Re: mismatch with backbias?

Example paper
 

Some data from a different for 1.8V nmos from a different 0.18u process.
This confirms that increasing backbias increases backbias.
 

rubink said:
This confirms that increasing backbias increases backbias.
Click to expand...
I guess nobody would ever question this! SCNR!
But jokes aside: you got your confirmation. Thanks for sharing the picture!
 

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