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Variation-Aware Structural Synthesis of Analog Circuits via Hierarchical Building Blocks and Structural Homotopy

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4 Author(s)
Trent McConaghy ; Dept. Electr. Eng. (ESAT-MICAS), Katholieke Univ. Leuven, Leuven, Belgium ; Pieter Palmers ; Michiel Steyaert ; Georges G. E. Gielen

This paper presents MOJITO-R, a tool that performs variation-aware structural synthesis of analog circuits. It returns trustworthy topologies by searching across a space of thousands of possible topologies defined by hierarchically organized analog structural building blocks. ldquoStructural homotopyrdquo conducts search at several objective-function tightening levels (numbers of process corners) simultaneously. Multiobjective evolutionary search returns sized topologies which trade off power, area, performances, and yield. An experimental validation run returned 78 643 Pareto-optimal designs, having 982 sized topologies with various specification/yield combinations. A decision tree is extracted to visualize the performance-topology relationship.

Published in:

IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems  (Volume:28 ,  Issue: 9 )