Saeed mehregan - M.S. student of Electrical Engineering Qazvin Azad University Qazvin, Iran

This paper discusses the design of low-voltage, high gain, fully differential CMOS Op-amp in a low voltage (VDD = 1.0V)90nm CMOS process. This Op-amp is ideally suited for switch-capacitor circuits and simulations show a unity gain bandwidth of 651MHz with 1pF load capacitor and a DC gain of more than 107dB. The phase margin is around 58o. The circuit topology is a two-stage folded cascode structure with regulated cascodes for gain boosting

Folded Cascode, Boosting, CMFB