Comparative study on telescope differential amplifier and multistage amplifier design using 50nm BSIM-technology/ Mohd Azrie Abu Bakar

The operational amplifier is one of the most useful and prominent components of analog electronics. It is a voltage controlled voltage source with very high gain. The operational amplifier is also an essential block of many mixed-mode systems and it is widely used in modern electronics. This thesis presents the comparison between telescopic differential amplifier and multistage amplifier design using 50nm BSIM4 technology. The objective of this project is to compare the gain and power dissipation among these two design models. The execution has been done in 50nm BSIM4 technology, for a 1.0V voltage supply using LTSpice simulation tools. LTSpice is a high performance SPICE simulator, waveform viewer and schematic capture with improvements and models for easing the simulation of switching regulators. From the simulation, the telescopic differential amplifier obtained 60.49dB gain and consumes 24.68uW power dissipation. The multistage amplifier obtained 71.32dB gain and consumes 62.47uW power dissipation.