- Joined Nov 3, 2017
This is one of questions our prof gave to students in recent years and im preparing myself for this exam. i understand that Q1 and Q2 with Q1l and Q2l are making a differential amplifier with active load. but what is Q5 ? is that a current source ? if so why its Gate voltage comes from N1.
also the output is connected to a Cmos inverter well in digital this makes sense but here what if input of Cmos inverter is not either zero or vdd but vdd/2 ? isnt it going to also amplify the output in that range making the amplifier non-linear ?