Re: Folded Cascode with pmos input pair plus wide swing cascode current mirror
The inductors are only to simulate the bonding wires, though knowing that I should add the pad capacitance. But for now I will let it be as it is.
Regarding the current source, are you talking about the current at left of the folded cascode? I will change that for the current reference that I have designed. When I designed this folded cascode, I didn't had the current source reference.
Anyway, the main question here was to know if the phase response shape is suppose to be like that, because this is the first time that I am designing a folded cascode an the circuits that I have seen around IEEE and so they presented a high output capacitance (that is >1pF) and with that it is comprehensive that the output shape of the phase response is clean and looks nice. Because my output capacitance is small, they load capacitance will not be sufficient to compensate for the PM so I increased the cascode transistors sizes in order to compensate the folded cascode. From what dominik said, it is a normal shape.
Regarding the last issue, comparison with the typical tolopogy I have found the answer in Sansens book.
Regards.