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                     CALL FOR PAPERS
      IEEE Transactions on Circuits and Systems--Part II
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                     Special Issue on 
        ``ADVANCES IN NONLINEAR ELECTRONIC CIRCUITS''

Electronic components, whether passive or active, are
intrinsically nonlinear, and so are all circuits built by
interconnecting these components.  For many practical 
applications, a designer employs interconnection and sizing
strategies, such as differential configurations, feedback,
inverse function cancellation, etc., 
to reduce the influence of component nonlinearities.
A detailed knowledge of these
techniques and insight into their limitations facilitates
the understanding and design of quasilinear electronic circuits.

While these strategies may reduce nonlinear effects, they cannot
cancel them out completely.
Hence, designers are confronted with the problem of 
measuring the effectiveness of a particular linearization 
strategy and estimating how the residual nonlinearity 
degrades circuit performance.  Issues such as harmonic
distortion, intermodulation distortion, dependency of time
constants on bias, etc. must be taken into account when
designing quasilinear electronic circuits.

In other applications, the objective is not to cancel a
nonlinearity but to use it to perform signal processing, for
example in multipliers, logarithmic amplifiers, oscillators,
and data converters.  Once again, circuit designers
must be aware of the underlying concepts and limitations of
available techniques in order to optimize the performance
of nonlinear functional blocks.

In addition to these traditional domains, recent advances 
in nonlinear dynamical circuits and systems, chaos theory, and 
nonlinear analog array processors have opened up potential new
application areas for nonlinear electronic circuits in
communications, control, and signal-processing.
This design-oriented special issue is intended to review 
the current state-of-the-art in nonlinear electronic circuits,
covering the aspects outlined above. 

Original research and tutorial papers are solicited in the
following application areas:

Distortion in Amplifiers and Filters
Clocks and Timing Circuits
Quasilinear Harmonic Oscillators
PLLs and Nonlinear Communication Circuits
Mixers and Multipliers
Logarithmic Amplifiers
Log-domain Filters
Nonlinear Function Generation 
Nonlinear Circuits for Advanced Signal Processing
Nonlinear IC Design Issues

Contributions for this special issue should be sent to one of
the following Guest Editors:  

Dr. Michael Peter Kennedy 
Department of Electronic & Electrical Engineering 
University College Dublin 
Dublin 4 
IRELAND 
tel.  +353 1 706 1963 
fax.  +353 1 283 0921
e-mail: Peter.Kennedy@ucd.ie 

Dr. Angel Rodriguez-Vazquez
Department of Analog Design, CNM 
CICA-CNM Bldg, Avda.~Reina Mercedes 
41012 Sevilla 
SPAIN 
tel. +34 5 423 9923 
fax. +34 5 423 1832
e-mail: angel@cnm.us.es

Manuscripts are subject to peer review and should be submitted to
the Guest Editors before 31 July, 1997.  All manuscripts should
conform to the standard formats as indicated in the
``Information for Authors'' of the IEEE Transactions on Circuits
and Systems.