Design of high gain low power operational amplifier

The operational amplifiers are the versatile and significant modules in the field of electronic circuits. Two-stage Op-Amp is a multistage amplifier which is widely useful for on-chip applications. The proposed circuit is a two stage operational amplifier designed using differential architecture, implemented in CMOS technology. The circuit gives best results such as high gain of 1,960 dB and low power consumption of 1.320 mW at 180 nm technology.