Analysis of the conversion function nonlinearity of the analog-digital converter
DOI:
https://doi.org/10.18372/2073-4751.74.17887Keywords:
conversion function, analog-digital converter, integral nonlinearity (INL), differential nonlinearity (DNL), dynamic characteristics of ADCAbstract
The study aims to analyze analog-to-digital converter (ADC) nonlinearity in digital measuring instruments such as oscilloscopes, multimeters, and spectrum analyzers. The non-linearity of the ADC can lead to insufficient accuracy, distortion and inhomogeneity of the signal transformation. The research examines the factors that cause the nonlinearity of the ADC and the methods of evaluating its influence on the measurement results. Also considered are the parameters related to the nonlinearity of the ADC, which are standardized in the technical descriptions, allowing to assess the level of nonlinearity and make appropriate corrections during data processing.
References
Kester W. MT-001 TUTORIAL Taking the Mystery out of the Infamous Formula, "SNR = 6.02N + 1.76dB," and Why You Should Care. Norwood : Analog Devices, 2009. 7 p.
Kester W. Analog-digital conversion. Norwood : Analog Devices, 2004. 1138 p.
Michaeli L., Michalko P., Šaliga J. Unified ADC nonlinearity error model for SAR ADC. Measurement. 2008. V. 41, No. 2. P. 198–204.
Wagdy M.F., Ng W.-M. Validity of uniform quantization error model for sinusoidal signals withoutand with dither. IEEE Transactions on Instrumentation and Measurement. 1989. V. 38, Iss. 3. P. 718–722.
Brandolini A., Gandelli A. Testing methodologies for analog-to-digital converters. IEEE Transactions on Instrumentation and Measurement. 1992. V. 41, Iss. 5. P. 595–603.
Kester W. MT-003 TUTORIAL Understand SINAD, ENOB, SNR, THD, THD + N, and SFDR so You Don't Get Lost in the Noise Floor. Norwood : Analog Devices, 2009. 8 p.
Suchanek P., Slepicka D., Haasz V. Several approaches to ADC transfer function approximation and their application for ADC nonlinearity correction. Metrology and Measurement Systems. 2008. V. 15, No. 4. P. 501–511.
Suchanek P., Slepicka D., Haasz, V. Experimental Verification of Different Models of the ADC Transfer Function. 13th Workshop on ADC Modelling and Testing / Florence, Italy, 2008. P. 22–24.
Kim K. Analog-to-digital conversion and harmonic noises due to the integral nonlinearity. IEEE Transactions on Instrumentation and Measurement. 1994. V. 43, No. 2. P. 151–156.
Flores M. da Gloria, Negreiros M., Carro L., Susin A. INL and DNL estimation based on noise for ADC test. IEEE Transactions on Instrumentation and Measurement. 2004. V. 53, Iss. 5. P. 1391–1395.
Flores M. da Gloria, Negreiros M., Carro L., Susin A. INL and DNL estimation based on noise ADC test. Proceedings of the 20th IEEE Instrumentation Technology Conference / Vail, CO, USA, 2003. V. 2. P. 1350–1353.
Flores M. da Gloria, Negreiros M., Carro L., Susin A. A noise generator for analog-to-digital converter testing. Proceedings 15th Symposium on Integrated Circuits and Systems Design / Porto Alegre, Brazil, 2002. P. 135–140.
Šaliga J., Michaeli L., Holcer R. Noise sensitivity of the exponential histogram ADC test. Measurement. 2006. V. 39, No. 3. P. 238–244.
Cruz Serra A., Da Silva M.F., Ramos P., Michaeli L. Fast ADC testing by spectral and histogram analysis. Proceedings of the 21st IEEE Instrumentation and Measurement Technology Conference / Como, Italy, 2004. V. 2. P. 823–828.
Downloads
Published
How to Cite
Issue
Section
License
The scientific journal adheres to the principles of Open Access and provides free, immediate, and permanent access to all published materials without financial, technical, or legal barriers for readers.
All articles are published in Open Access under the Creative Commons Attribution 4.0 International (CC BY 4.0) license.
Copyright
Authors who publish their works in the journal:
-
retain the copyright to their publications;
-
grant the journal the right of first publication of the article;
-
agree to the distribution of their materials under the CC BY 4.0 license;
-
have the right to reuse, archive, and distribute their works (including in institutional and subject repositories), provided that proper reference is made to the original publication in the journal.