Programmable analogue vlsi cnn chip with local digital logic

K. Halonen, V. Porra, T. Roska, L. Chua

Research output: Contribution to journalArticle

17 Citations (Scopus)


A new integrated circuit cellular neural network implementation with digitally or continuously selectable template coefficients is presented. Local logic and memory are added into each cell, providing a simple dual (analogue and digital) computing structure. Variable gain OTAs are used as the voltage‐controlled current sources to programme the template element values. the cells have local switched feedback (both analogue and digital) to feed from the output to the input or state capacitor. Therefore this analogue array processor can be applied to solve problems with a sequence of different templates. A 4 × 4 CNN circuit is realized using the 2 μm analogue CMOS process.

Original languageEnglish
Pages (from-to)573-582
Number of pages10
JournalInternational Journal of Circuit Theory and Applications
Issue number5
Publication statusPublished - Jan 1 1992

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

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