The primary objective of this investigation was to design an efficient two-stage operational amplifier (2SOA). The simulation was run on a 45 nm technology node with Hspice software and a 0.9 V supply voltage. Traditional CMOS and pure CNTFETs were used to build operational amplifier circuits. CNT-based circuits were proposed and compared to typical CMOS-based circuits. The proposed circuits demonstrated superior performance in various aspects, including DC Gain and output resistance, surpassing the performance of the standard devices. The circuit design put forth in this proposal holds the potential to serve as a highly effective solution for realizing low-power analog applications with remarkable efficiency.