FASY - A FUZZY-LOGIC BASED TOOL FOR ANALOG SYNTHESIS

A CAD tool for analog circuit synthesis is presented, This tool, calle d FASY, uses fuzzy-logic based reasoning to select one topology among a fixed set of alternatives, For the selected topology, a two-phase op timizer sizes all elements to satisfy the performance constraints mini mizing a cost function, In FASY, the decision rules used in the topolo gy selection process are introduced by an expert designer or automatic ally generated by means of a learning process that uses the optimizer mentioned above. The capability of learning topology selection rules b y experience, is unique in FASY, Practical examples demonstrate the to ol ability of this tool to learn topology selection rules and to synth esize analog cells with different circuit topologies.