firsttimedesigning
Full Member level 1
From the book it says that the minimum allowable input voltage is Vcss + Vgs1. Vcss is the voltage across the current source. The maximum input voltage is Vdd- Vgs3 +Vth1. I can see how the authors gets these two voltage. What I dont understand is that what would happen if the input voltage drops below the minimum allowable input voltage? and the input voltage gets above the max allowable input voltage? Does one of the transistors go into triode region? if so, how?
I am guessing that when it is below the minimum allowable input voltage, some of the transistors will not conduct the current. But I cannot see how does that happen...
I am guessing that when it is below the minimum allowable input voltage, some of the transistors will not conduct the current. But I cannot see how does that happen...