Low power class-AB VCII with extended dynamic range

In this paper we present a novel CMOS second generation voltage conveyor (VCII) topology featuring wide swing both at the X terminal and Z terminal. The VCII consists of regulated common gate configuration Y current input class-AB complementary-MOS closed loop output follower that ensures buffering action between terminals. Spice simulation results using AMS 0.35 μm with ±0.9 V supply are provided to demonstrate validity proposed topology. With total power consumption 28 µW, achieves ±0.8 V, whereas ±0.72 is achieved on Simulation for DC AC gains given, as well harmonic distortions noise figures. A final comparison table also presented, where compared other solutions presented in literature.