Title :
Measurement of static ADC nonlinearities using the servoloop method
Author :
Sabatini, A. ; Carbone, P.
Author_Institution :
Dept. of Electron. & Inf. Eng., Perugia Univ., Italy
Abstract :
When in in-circuit static testing of analog-to-digital converters is needed, a low overhead in terms of hardware and data processing is a requirement. The servoloop is a feedback based test method, common in industrial environments, that satisfies both needs. In this paper it is described, and its features are analyzed. A mathematical model based on a Markov chain is used to characterize its metrological performance. Simulation and experimental data are shown that validate the developed theory. Finally, a reproducible test procedure to obtain a given measurement uncertainty is presented.
Keywords :
Markov processes; analogue-digital conversion; built-in self test; circuit feedback; integrated circuit testing; measurement uncertainty; servomechanisms; Markov chain; analog-to-digital converters; built-in self test; data processing; feedback based test method; hardware overhead; in-circuit static testing; industrial environments; mathematical model; measurement uncertainty; metrological performance; reproducible test; servoloop method; static ADC nonlinearities; Automatic testing; Built-in self-test; Circuit simulation; Circuit testing; Clocks; Costs; Frequency estimation; Hardware; Performance evaluation; Voltage;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2004. IMTC 04. Proceedings of the 21st IEEE
Print_ISBN :
0-7803-8248-X
DOI :
10.1109/IMTC.2004.1351103
