present a method for optimizing and automating component and transistor sizing for CMOS operational amplifiers. lVe observe that a wide variety of performance measura can be formulated as po~nomial functions of the design variablw. As a resul~ampfifier design problems can be formulated as ageometricprogram, a special me of convex optimimtion problem for which very efficient global optimization methods have recentiy been developed. The synth~s method is therefore fas nd determines the ~obdy optimal d~~, in particular the finsd solution is completely independent of the starting point (which can even be infeasible), and infeasible specifications are unambiguously detected.
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Hershenson et al. (1998) studied this question.