{'fraction_non_alphanumeric': 0.021116138763197588, 'fraction_numerical': 0.0, 'mean_word_length': 5.148148148148148, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Measurement of static ADC nonlinearities using the servoloop method

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.