SOME ERRORS OF ANALOGUE SIGNAL SOURCES FOR ADC EXPONENTIAL STIMULUS HISTOGRAM TEST |
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| Linus Michaeli, Michal Sakmár, Ján Šaliga |
- Abstract:
- This paper presents some typical errors of exponential stimulus generated by analog signal sources and their influence on errors of ADC testing by the histogram method. The analysed exponential signals are very close to linear signals such as triangular and sawtooth signals that can be very simply generated by active integrating circuit or passive integrating circuit with long time constant and/or the final voltage far beyond the ADC input range. The experimental measurements of some analogue generators on the market as well as passive and active generating circuit specially designed for the testing were performed. The sources of signal shape errors were investigated and capacitor was determined as the most critical component of generating circuit. The limitations of signal shape error were evaluated and related to the INL test error.
- Keywords:
- exponential stimulus, ADC test, histogram test
- Download:
- IMEKO-IWADC-2007-F076.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC4
- Event name:
- IWADC 2007
- Title:
12th IMEKO TC4 International Workshop on ADC Modeling and Testing IWADC (together with XVth IMEKO TC4 International Symposium on Novelties in Electrical Measurements and Instrumentation) (IWADC)
- Place:
- Iasi, ROMANIA
- Time:
- 19 September 2007 - 21 September 2007