Muhaned Zaidi and Ian Grout and Abu Khari bin A’ain
RailToRail Output OpAmp Design with Negative Miller Capacitance Compensation
261 - 267
2017
11
3
International Journal of Electronics and Communication Engineering
https://publications.waset.org/pdf/10006593
https://publications.waset.org/vol/123
World Academy of Science, Engineering and Technology
In this paper, a twostage opamp design is considered using both Miller and negative Miller compensation techniques. The first opamp design uses Miller compensation around the second amplification stage, whilst the second opamp design uses negative Miller compensation around the first stage and Miller compensation around the second amplification stage. The aims of this work were to compare the gain and phase margins obtained using the different compensation techniques and identify the ability to choose either compensation technique based on a particular set of design requirements. The two opamp designs created are based on the same twostage railtorail output CMOS opamp architecture where the first stage of the opamp consists of differential input and cascode circuits, and the second stage is a class AB amplifier. The opamps have been designed using a 0.35mm CMOS fabrication process.
Open Science Index 123, 2017