Title
Accurate differential tanh(nx) implementation
Abstract
This paper presents a novel non-linear neural activation function architecture that approximates the tanh(nx) function accurately. The purpose of this realization is the description of a circuit that can be designed to obtain different slopes at the origin of the activation function. The special features of transistors working in the subthreshold region are combined with current mode techniques in order to minimize power consumption and occupied area. Moreover, the circuit has been designed with fully differential and balanced topologies so that the external influences, offset, and distortion of even order are reduced. The proposed activation function is thoroughly explained and it is analysed taking the body effect into account. Some modifications are applied in order to immunize it from the body effect, and simulated results for an implementation on a 0.35 µm AMI technology are presented. Copyright © 2008 John Wiley & Sons, Ltd.
Year
DOI
Venue
2009
10.1002/cta.v37:5
International Journal of Circuit Theory and Applications
Keywords
DocType
Volume
different slope,proposed activation function,accurate differential tanh,function architecture,activation function,body effect,john wiley,external influence,novel non-linear neural activation,current mode technique,balanced topology,subthreshold,hyperbolic tangent
Journal
37
Issue
ISSN
Citations 
5
0098-9886
5
PageRank 
References 
Authors
0.68
2
2
Name
Order
Citations
PageRank
Manuel Carrasco-Robles1153.25
Luis Serrano2547.43