Analysis of Two Stage Folded Cascode Operational Amplifier in 90nm Technology

Abstract: Folded cascode configuration is a very fascinating unit to any Analog Vlsi researcher as it has advantage of high gain, lesser power dissipation and High Bandwidth. This paper describes about the parametric analysis of folded cascode opamp at low power supply requirements, input voltage and using 90nm technology. At the end, the results which are obtained are compared with the conventional two stage opamp with the same specifications and same technology (90nm).

Keywords: CMRR, dB, NMOS, PMOS, opamp, folded cascade.