info:eu-repo/semantics/article
Diseño de un amplificador operacional de transconductancia aplicando técnicas de optimización multiobjetivo
Fecha
2014-01Registro en:
2215-3241
0374-3982
Autor
Pereira-Arroyo, Roberto
Molina-Robles, Roberto
Chacón-Rodríguez, Alfonso
Institución
Resumen
In this paper, the problem at hand consists in the
sizing of an Operational Transconductance Amplifier
(OTA). The Pareto front is introduced as a useful
analysis concept in order to explore the design space
of such analog circuit. A genetic algorithm (GA) is
employed to automatically detect this front in a
process that efficiently finds optimal parameterizations
and their corresponding values in an aggregate
fitness space. Since the problem is treated as a multiobjective
optimization task, different measures of the
amplifier like the transconductance, the slew rate,
the linear range and the input capacitance are used
as fitness functions. Finally, simulation results are presented,
using a standard 0,5μm CMOS technology.