Hi all,

How does cascoding helps in supply rejection? Is it AC supply rejection or the DC supply rejection?
Can you please provide your analysis?

Supposing if the cascode current mirror providing current to an inverter (the current from the mirror can be varied)  which controls the
delay of the inverter. Is this true that the delay of inverter is not susceptible to supply noise (both AC and DC)?

Also I notice that usually capacitors are placed on the bias nodes and supply for the cascode devices (connected to gates of transistors), this
means the gate nodes and supply voltage are AC coupled right,  what is the purpose and how does it help?

Thanks
h