Enabling DC Solutions Characterization using a Fuzzy Approach
Ons Lahiouel, Henda Aridhi,
Mohammed Zaki Hussein and
Sofiene Tahar
Contact:
lahiouel@ece.concordia.ca
As designs are moving into submicron technologies, analog
effects are becoming a key concern during the verification at
the circuit level. A first step in analog verification should
start with a study of the main properties of the circuit, such
as identifying its DC operating points. Such task becomes
more difficult with the effect of process variation.
We present a method for characterizing
the DC operating points of analog circuits. We construct fuzzy
DC equations that model circuit parameter variations and apply
a global optimization algorithm to estimate the location of DC
points. We applied our method to analyze the stability of a
ring oscillator and the influence of the input voltage offset
on the DC characteristic of a differential pair. Our results
prove the effectiveness of our method in describing circuits DC
performance parameters and predicting possibilities of undesired
circuit operations.
[1] O.Lahiouel, H. Aridhi, M. H. Zaki, and S. Tahar,
Enabling the DC Solutions Characterization using a Fuzzy Approach[Proc. IEEE New Circuits and Systems Conference (NEWCAS'14), Trois-Rivieres, Quebec, Canada, June 2014, pp. 161-164.]
