Title :
Low-cost test of the first-order Delta-Sigma converter
Author :
Desouky, A.O. ; Khairy, M.S. ; Abdelhalim, M.B. ; Amer, H.H.
Author_Institution :
Electron. & Commun. Dept., Cairo Univ., Cairo, Egypt
Abstract :
Delta-sigma converters are very popular components in the field of mixed-signal circuits. Hence, testing these converters is a very crucial issue. This paper discusses testing first-order delta-sigma A/D converters. It is shown that one analog test value is enough to detect all faults (but one) in the target fault set. The target fault set consists of stuck-at-faults in digital components, op-amp output faults, as well as open and short faults in passive components. Analytical results were verified by ORCAD PSPICE simulations.
Keywords :
SPICE; analogue-digital conversion; fault diagnosis; sigma-delta modulation; ORCAD PSPICE simulations; first-order delta-sigma A/D converter; mixed-signal circuits; passive components; stuck-at-faults; Analog-digital conversion; Circuit faults; Circuit simulation; Circuit testing; Fault detection; Pulse width modulation converters; Resistors; SPICE; Signal generators; Vectors; Delta-Sigma A/D Converters; fault coverage; fault models; mixed-signal testing;
Conference_Titel :
Computer Engineering & Systems, 2009. ICCES 2009. International Conference on
Conference_Location :
Cairo
Print_ISBN :
978-1-4244-5842-4
Electronic_ISBN :
978-1-4244-5843-1
DOI :
10.1109/ICCES.2009.5383302
