Optimizing an Amplifier with a Many Objective Algorithm

11:00 am - 11:25 am 25 Friday


Modeling, Control and Industry

In this work a Miller CMOS amplifier [1], with integrated circuit technology of 35m, is optimized using the many objective algorithm MOMBI [2] which is based in the R2 indicator. Five objectives are used: a DC gain bigger than 80 dBV, a unity gain frequency bigger than 17 MHz, a phase margin bigger than 60,slew rate bigger than 18 MV/s, and a CMRR bigger than 90 dBV. Also this problem has eight constraints[3] (all transistors must be working in saturation mode). Results are compared with the amplifier obtained in [1].


[1] T. Oliveira Weber and W.A.M. Van Noije. Analog circuit synthesis performing fast Pareto frontierexploration and analysis through 3D graphs.Analog Integrated Circ. Sig. Processing, 73:861–871, 2012.

[2] R. Hernandez Gomez and C.A. Coello Coello. “MOMBI: A new metaheuristic for many-objectiveoptimization based on the R2 indicator",Evolutionary Computation (CEC), 2013 IEEE Congress on,pp. 2488–2495, 2013.

[3] L. G. de la Fraga and E. Tlelo-Cuatle. “Optimizing an amplifier by a many-objective algorithm basedon R2 indicator", Circuits and Systems (ISCAS), 2015 IEEE International Symposium on, 265-268