Design of a Current Mirror Based Differential Amplifier for Low-voltage and Low Power Applications

As per the Moore’s law, there is an extreme increase in number of on chip devices, this increase in chip density results in power dissipation and thus the power utilization is unsatisfactory. So to avoid this problem the concept of Low Power system arises. As a part of microelectronics, it has been proposed to make the choice of minute circuit with attraction added by use of MOS cells. Since we often use operational amplifiers in our specialty, we chose to recreate an operational amplifier from templates provided in the book Basics of CMOS Cell design. Nowadays, differential amplifiers are widely employed in many circuits. If we minimized the power consumption of a single differential amplifier the power consumption of the whole circuit will be considerably minimized. In this paper, analysis of the Inverter based differential amplifier and the current mirror circuit based amplifier design are shown. Thus, the purpose of this paper is to design an advanced differential amplifier circuit using CMOS technology with lesser power consumption & high Gain.