A Two-Stage Method for Optimizing the Parameters of CMOS Operational Amplifiers Based on Evolutionary Algorithm
Abstract
This paper presents a two-stage method for optimization of CMOS operational amplifiers (op-amps) parameters. Modified cuckoo optimization algorithm (MCOA) is employed to evaluate the fitness of every circuit in a generation process, voltage and temperature (PVT) variations are considered during optimization. To evaluate the efficiency of the proposed approach, the design of folded-cascode and two-stage op-amps in a 0.18 μm process CMOS technology with 1.8 V supply voltage are presented. The simulation results show the efficiency of the proposed method in determining the parameters of analog circuits.
Keywords
CMOS Analog Circuits, Two-Stage Method, Modified Cuckoo Optimization Algorithm, Folded-Cascode Operational Amplifier, Two-Stage Operational Amplifier
