rail-to-rail CMOS opamp

A design strategy for a 1-V rail-to-rail input/output CMOS opamp

FREE-DOWNLOAD CJB Fayomi, M Sawan… – Circuits and Systems, …
A fundamental building block in low-voltage design is the operational amplifier (opamp). Unlike
the transconductance amplifier. it includes an output stage capable of driving off-chip resistive
loads. Obviously, the output stage must respect the specification requirement for drive