A Miller Compensated Operational Amplifier with Improved Stability

Versatile and often used operational amplifier (op-amp) architecture, the two-stage op-amp is appropriate for a variety of analogue circuits and applications, including high-precision amplification and signal conditioning. It offers high gain, which is essential, good frequency response and stability, especially when used with cutting-edge hardware like Complementary Metal-Oxide Semiconductor (CMOS). For high-speed applications that require more bandwidth, this can be a drawback. The CMOS op-amp circuit may produce a consistent output dc offset voltage if improperly built. Modeling of transistors has become an important design procedure to obtain a better op-amp for greater performances. Here we proposed an op-amp compensated with miller capacitance to gain high parametric values such as Gain (AV), unity-gain frequency, Power dissipation, a supply voltage of 1.2V, Slew Rate (SR), Phase margin (PM). The op-amp is simulated using OrCAD Capture to obtain the improved stability and enhance the parameters. The proposed op-amp can be used in high-speed applications and signal conditioning