Silicon synaptic conductances.

Abstract:

:We have developed compact analog integrated circuits that simulate two synaptic excitatory conductances. A four-transistor circuit captures the dynamics of an excitatory postsynaptic current caused by a real AMPA conductance. A six-transistor circuit simulates the effects of a real voltage-dependent NMDA conductance. The postsynaptic current dynamics are modeled by a current mirror integrator with adjustable gain. The voltage dependence of the silicon NMDA conductance is realized by a differential pair. We show the operation of these silicon synaptic conductances and their integration with the silicon neuron (Mahowald and Douglas, 1991).

journal_name

J Comput Neurosci

authors

Rasche C,Douglas RJ

doi

10.1023/a:1008963426194

subject

Has Abstract

pub_date

1999-07-01 00:00:00

pages

33-9

issue

1

eissn

0929-5313

issn

1573-6873

journal_volume

7

pub_type

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