IDENTIFICATION OF ADC ERROR MODEL BY TESTING OF THE CHOSEN CODE BINS |
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| Domenico Grimaldi, Linus Michaeli, Peter Michalko |
- Abstract:
- Modelling of ADC allows to utilize testing of selected parameters for determination of its error model over whole operating range. While the integrating ADC model is characterised by polynomial shape of integral nonlinearity, the successive approximation ADCs are characterised by periodical appearance of significant values of differential nonlinearities related with each code bit. Unified behavioural error model cover wide scale of possible structures. The vicinity of tested integral nonlinearities with the modelled shape is shown on the base of the experimental results for two representatives of ADCs. The impact of the model parameter selection on the model accuracy is being studied in the paper. Those outcomes allow to choose the optimal fast testing method.
- Keywords:
- Analog to Digital Converters, Modelling, Calibration
- Download:
- IMEKO-TC4-2002-132.pdf
- DOI:
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