[SOLVED] Gate current of mosfet when used as a switch

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chandlerbing65nm

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Are there any gate current of the nmos Mn2(attached image) when it is used as a switch? Nmos Mn2 acts as a switch to charge and discharge the capacitor.

How can I calculate the gate current through the mosfet?
How does the gate current affect the charging/discharging of the capacitor?

:?:
 

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I'm not sure how it applies to IC design but the gate current in a MOSFET is mainly due to the gate capacitance. In other words, current only flows during transitions as the gate capacitance is charged/discharged. Steady-state current (leakage current) is negligible and can usually be ignored.
 

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