Title :
Measurement of Static ADC Nonlinearities Using the Servoloop Method
Author :
Sabatini, Andrea ; Carbone, Paolo
Author_Institution :
Dept. of Electron. & Inf. Eng., Perugia Univ.
Abstract :
When in-circuit static testing of analog-to-digital converters (ADCs) 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. It is described in this paper, and its features are analyzed. A mathematical model based on a Markov chain is used to characterize its metrological performance. Simulation and experimental data that validate the developed theory are shown. Finally, a reproducible test procedure to obtain a given measurement uncertainty is presented
Keywords :
Markov processes; analogue-digital conversion; built-in self test; integrated circuit testing; measurement uncertainty; Markov chain; analog-to-digital converters; built-in self-test; feedback-based test method; in-circuit static testing; measurement uncertainty; servoloop method; static ADC nonlinearity measurement; Analog integrated circuits; Analog-digital conversion; Built-in self-test; Circuit testing; Clocks; Costs; Digital integrated circuits; Hardware; Integrated circuit technology; Performance evaluation; ADC nonlinearities; Markov chains; built-in self-test; servoloop;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.2006.870111
