low voltage VLSI systems

A high bandwidth constant gm and slew-rate rail-to-rail CMOS input circuit and its application to analog cells for low voltage VLSI systems
W Redman-White – Solid-State Circuits, IEEE Journal of,

Abstract A new rail-to-rail CMOS input architecture is presented that delivers behavior nearly
independent of the common-mode level in terms of both transconductance and slewing
characteristics. Feedforward is used to achieve high common-mode bandwidth, and