A CMOS Implementation of FitzHugh-Nagumo
Bernabk Linares-Barranco, Edgar Shnchez-Sinencio, Angel Rodriguez-Vbzquez, Josh L. Huertas · 1991
A complete derivation of neuron model is pre- sented, starting with the description of the fundamental biologi- cal mechanisms involved in the living neural cell, followed by the mathematical model formulation extracted from these mech- anisms, and a circuit theory technique to obtain a physical IC suitable circuit that emulates the derived mathematical equa- tions culminating with the presentation of the experimental results of a chip fabricated in a 2-pm double-metal, double-poly CMOS process. It is emphasized that the FitzHugh-Nagumo model is very adequate for emulation of small biological sys- tems. A reduced complexity oscillatory model suitable for imple- mentation of relatively large neural network architectures is also introduced with several corresponding CMOS realizations and measured results.