Dear friends,
I am trying to use this circuit attached below for biasing the cascode transistors in of the Op-amp. This circuit was highlighted to me by Dominik but I still unable to understand the princible of operation regarding the voltages Vntail, Vncas1 and Vncas2.
What I know is that:
Vtail = Vov+Vth
Vncas1= 2Vov+Vth
Vncas2 = 3Vov+Vth
But I dont know how it is coming or the setting to generate these voltages from this circuit.
Thank you in advance
Best Regards