Title :
Impact of parameter covariance on fault detectability estimation of analogue and mixed-mode circuits
Author :
Papakostas, D.K. ; Hatzopoulos, A.A.
Abstract :
An extension to the method for estimating the fault detection probability, in order to include circuit parameters with covariance, is studied. The enhanced method takes into account the statistical variations and matching dependencies between circuit parameters and gives quite accurate and realistic results, while additional circuit simulations, compared to the previous method, are needed. The method is applied for the estimation of fault detectability in a simulation-before-test approach. Comparative results from analogue and mixed-mode circuits are presented to evaluate the contribution of the extended formulation
Keywords :
circuit simulation <param. covariance, fault detectability estim. of analogue and mixed-mode ccts., impact>; fault diagnosis <param. covariance, fault detectability estim. of analogue and mixed-mode ccts., impact>; mixed analogue-digital integrated circuits <param. covariance, fault detectability estim. of analogue and mixed-mode ccts., impact>; network parameters <param. covariance, fault detectability estim. of analogue and mixed-mode ccts., impact>; circuit parameters; circuit simulations; fault detectability estimation; mixed-mode circuits; parameter covariance; simulation-before-test approach; statistical variations;
Journal_Title :
Circuits, Devices and Systems, IEE Proceedings -
DOI :
10.1049/ip-cds:20030579
