Architectures and building blocks for CMOS VLSI analog "neural" programmable optimizers

A modular reconfigurable serial architecture is presented for the analog/digital implementation of constrained optimization algorithms with digital programmability of the problem weights. Area overhead due to programmability is reduced by using a time multiplexing methodology. It allows all the weights of each multiple inputs processing unit to be digitally-controlled by just using one weighted component array. The proposed architecture is very well suited for MOS VLSI realization using Switched-Capacitor (SC) techniques. SC schematics for the different building blocks are presented and demonstrated via empirical results.