APPLICATION OF PERIODICAL EXPONENTIAL STIMULUS SIGNAL FOR ADC DNL TESTING |
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| Roland Holcer, Linus Michaeli, Ján Šaliga |
- Abstract:
- Testing of ADC’s differential nonlinearity (DNL) by the histogram method requires signal generator with extremely low distortion and high stability. Author developed new histogram-based testing method with exponential stimulus signal. In this paper, the modification of this method is presented. The single exponential test signal is replaced by periodical exponential signal. The histogram from the recorded samples and that for the best fitted shape allows determining the differential nonlinearity of ADC. This modification gives some advantages presented and discussed in the paper. The proposed method was experimentally verified and achieved results compared with those by the single exponential method and by the standardized histogram method with harmonic stimulus signal.
- Keywords:
- ADC testing, histogram method, DNL and INL, periodical exponential stimulus signal
- Download:
- IMEKO-IWADC-2003-35.pdf
- DOI:
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