CMOS COMPARATOR


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Designing the Comparator with NMOS Input Drivers


Determine the first stage biasing current using the minimum allowable size of (W/L)=1, and minimum output offset.
(a) Consider M4 and M6.
Using the minimum size for M4, determine the current ISD4 that mirror with M6. That is,


Designing the Comparator with PMOS Input Drivers


Determine the first stage biasing current using the minimum allowable size of 1, and minimum output offset.
(a) Consider M4 and M6.
Using the minimum size for M4, determine the current ISD4 that mirror with M6. That is,