Nonlinearity of a data-acquisition system with interleaving/multiplexing

Author

Simoes, Jose Basilio ; Landeck, Jorge ; Correia, Carlos Manuel B A

Author_Institution

Dept. of Phys., Coimbra Univ., Portugal

Volume

46

Issue

6

fYear

1997

fDate

12/1/1997 12:00:00 AM

Firstpage

1274

Lastpage

1279

Abstract

The study of differential nonlinearities (DNL) and integral nonlinearities (INL) of a high-speed data acquisition system using interleaving/multiplexing yields a theoretical expression for both errors, showing that they are smaller than the DNL and INL errors for each analog-to-digital converter (ADC) channel. Both experimental and computer-simulated data reveal very good agreement with the theoretical results. It is also shown that for this type of interleaved acquisition system, that has a time-dependent transfer characteristic, the effective number of bits cannot be evaluated via histogram testing

Keywords

analogue-digital conversion; data acquisition; digital simulation; multiplexing; DNL errors; INL errors; analog-to-digital converter; computer-simulated data; data-acquisition; differential nonlinearities; effective number; errors; histogram testing; interleaved acquisition; interleaving/multiplexing; quantisation; testing; time-dependent transfer characteristic; Analog-digital conversion; Clocks; Computer errors; Data acquisition; Frequency conversion; Histograms; Interleaved codes; Quantization; Sampling methods; System testing;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.668271

Filename

668271