Low Area, Low Power and High Bandwidth Operational Amplifier by 130nm CMOS Technology

Abstract

A low power and high bandwidth CMOS Operational Amplifier has been designed in 130 nm CMOS Technology by Miller compensation technique and obtained a gain of 107 dB. A loop feedback is used to increase the bandwidth and results the final 3dB bandwidth 65 KHz and Unity gain bandwidth 2.3GHz. The proposed opamp providing 318 dB CMRR, 137 dB PSRR, 4.25 V/us Slew rate and 0.7 mW power dissipation. The overall design is simulated in 130nm digital CMOS technology in PSpice.