Constraint multi-objective automated synthesis for CMOS operational amplifier

Authors:
Jili Tao;Xiaoming Chen;Yong Zhu
Affiliations:
Ningbo Institute of Technology, Zhejiang University, Ningbo, Zhejiang, China;Ningbo Institute of Technology, Zhejiang University, Ningbo, Zhejiang, China;Ningbo Institute of Technology, Zhejiang University, Ningbo, Zhejiang, China
Venue:
LSMS/ICSEE'10 Proceedings of the 2010 international conference on Life system modeling and simulation and intelligent computing, and 2010 international conference on Intelligent computing for sustainable energy and environment: Part II
Year:
2010

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Constraint multi-objective automated synthesis for CMOS operational amplifier

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Abstract

The synthesis of CMOS operational amplifier (Op-Amp) can be translated into a constrained multi-objective optimization problem, in which a large number of specifications have to be taken into account, i.e., gain, unity gain-bandwidth (GBW), slew-rate (SR), common-mode rejection ratio (CMRR) and bias conditions. A constraint handling strategy without penalty parameters for multi-objective optimization algorithm is proposed. A standard operational amplifier is then designed, the results show the proposed methodology is very effective and can obtain better specifications than other methods.