Optimizing operational amplifiers by metaheuristics and considering tolerance analysis

Author

de la Fraga, Luis Gerardo ; Tlelo-Cuautle, Esteban

Author_Institution

Cinvestav, Mexico City, Mexico

fYear

2015

fDate

25-27 March 2015

Firstpage

1

Lastpage

4

Abstract

An operational tranconductance amplifier (OTA) is sized by applying multi-objective evolutionary algorithms. The OTA is designed using CMOS integrated circuit technology of 0.35 μm. From the obtained feasible solutions, a tolerance analysis is performed for each width (W) and length (L) of the MOSFETs. This analysis helps to evaluate the W/L tolerances of the transistors so that the developed optimization approach choose the solution with the best performance that has the lowest sensitivity. The selected feasible sized-design is used to implement a universal active filter, showing that the associated tolerance guarantees good performance of the OTA.

Keywords

CMOS integrated circuits; MOSFET; active filters; evolutionary computation; operational amplifiers; tolerance analysis; CMOS integrated circuit technology; MOSFET; OTA; W-L tolerances; multiobjective evolutionary algorithms; operational tranconductance amplifier; size 0.35 mum; tolerance analysis; universal active filter; Bandwidth; Gain; Integrated circuits; Optimization; Tolerance analysis; Transconductance; Transistors;

fLanguage

English

Publisher

ieee

Conference_Titel

Test Symposium (LATS), 2015 16th Latin-American

Conference_Location

Puerto Vallarta

Type

conf

DOI

10.1109/LATW.2015.7102503

Filename

7102503