Systematic comparison of two low-voltage amplifiers using topology matching and performance constraints

Abstract

This paper presents the comparison of two low-voltage amplifiers using a systematic, two step procedure: (i) automated topological matching highlighting common and different signal path structures and symbolic expressions and (ii) constraint extraction and analysis illustrating how dissimilarities between circuits impact relevant performance and showing design flexibility with respect to trade-offs. The obtained comparison is important for understanding benefits and limitations of unique features in designs, for selecting better fitting topologies, and for analog circuit synthesis tools.