J. Rzeszut, Ecole Polytech. de Montreal, Que., Canada
Y. Savaria, Ecole Polytech. de Montreal, Que., Canada
In this paper a new method is proposed for observing analog test points inside integrated circuits that enables the simultaneous observation of a large number of points. The method permits the removal of the analog multiplexer from the signal path and a reduction of the load introduced at the observed test points. A charge coupled device analog shift register is used to sample input voltage and shift out a charge that is proportional to the input voltage.
Index Terms:
mixed analogue-digital integrated circuits; integrated circuit testing; shift registers; analogue processing circuits; charge-coupled device circuits; mixed analog and digital circuits; analog test points; simultaneous observation; analog multiplexer; signal path; charge coupled device; analog shift register; input voltage
Citation:
J. Rzeszut, B. Kaminska, Y. Savaria, "A new method for testing mixed analog and digital circuits," ats, pp.127, Fourth Asian Test Symposium (ATS'95), 1995