Systematic Mismatch vs random mismatch

[psantro]

if i use common centroid approach to reduce systematic mismatch, then using this approach,will it lead to increase in random mismatch?( because ultimately in common centroid approach, small units are taken instead of big one)

 

[erikl]

Below pls. find a paper which deals with this problem (leading mismatch to opposite directions) :
View attachment Layout Dependent Matching Analysis of CMOS Circuits.pdf