avt
Member level 5
Hi,
could someone explain to me how to determine (or guess) the correlation coeffcients that one can define under the menue option "Simulation/Define Correlations" in the Monte Carlo toolbox under ADE/Spectre for Mismatch Suimulation.
I would assume that the distribution of the mismatch error according to something like sigma=x/sqrt(W*L) (like described in the Pelgrom paper , IEEE JSSC, vol SC-24 pp 1433-1439 October 89) is already delivered bei the MC-simulation library - so I assume that the correlation coefficent determines how good I realized the matching between dedicated transistors in my design - correct ??? - but how the heck can I get then something like correlation coefficient ? (and why can they also be negative ?)
could someone explain to me how to determine (or guess) the correlation coeffcients that one can define under the menue option "Simulation/Define Correlations" in the Monte Carlo toolbox under ADE/Spectre for Mismatch Suimulation.
I would assume that the distribution of the mismatch error according to something like sigma=x/sqrt(W*L) (like described in the Pelgrom paper , IEEE JSSC, vol SC-24 pp 1433-1439 October 89) is already delivered bei the MC-simulation library - so I assume that the correlation coefficent determines how good I realized the matching between dedicated transistors in my design - correct ??? - but how the heck can I get then something like correlation coefficient ? (and why can they also be negative ?)