Microelectronics Engineering Group

Microelectronics Engineering Group

Electronics Technology, Systems and Automation Engineering Department University of Cantabria
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Title:Fault detection in switched current circuits using built-in transient current sensors
Type:International Paper
Where:Journal of Electronic Testing-Theory and Applications 21 (6): 583-598
Date:2005-12
Authors: Yolanda Lechuga
Román Mozuelos
Miguel Angel Allende
Mar Martínez
Salvador Bracho
R&D Lines: Test methods of digital and mixed integrated circuits
Projects: Técnicas de Test para Circuitos Mixtos, Analógicos-Digitales. Aplicación ...
ISBN:0923-8174
PDF File:
Abstract:Switched current (SI) circuits use analogue memory cells as building blocks. In these cells, like in most analogue circuits, there are hard-to-detect faults with conventional test methods. A test approach based on a built-in dynamic current sensor (BIDCS), whose detection method weights the highest frequency components of the dynamic supply current of the circuit under test, makes possible the detection of these faults, taking into account the changes in the slope of the dynamic supply current induced by the fault. A study of the influence of these faults in neighbouring cells helps to minimize the number of BICS needed in SI circuits as is shown in two algorithmic analogue-to-digital converters
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