Linearity evaluation of high-speed sampling ADC board

•The linearity error of the ADC, NI-5922, depends on the chassis combined with.•The maximum linearity error variation observed when the PXI chassis are replaced is about 15μV/V.•The linearity error of the ADC board can represent by a cubic function, agreed with previous reports. There are growing de...

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Bibliographic Details
Published in:Measurement : journal of the International Measurement Confederation 2017-08, Vol.106, p.31-34
Main Authors: Wijayasundara, G.W.C., Lee, Hyung-Kew, Park, Seung-Nam, Cho, Hehree, Kim, Mun-Seog
Format: Article
Language:English
Subjects:
[formula omitted] analog-to-digital converter
Analog
Analog to digital conversion
Analog to digital converters
Chassis
Digitizing
Error analysis
High speed
Josephson voltage standard
Linearity
Measurement
Nonlinear systems
Programmable
Sampling
Voltage linearity
Waveform generators
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Summary:•The linearity error of the ADC, NI-5922, depends on the chassis combined with.•The maximum linearity error variation observed when the PXI chassis are replaced is about 15μV/V.•The linearity error of the ADC board can represent by a cubic function, agreed with previous reports. There are growing demands on the evaluation of accuracy for high-speed analog-to-digital converters which are increasingly needed in electrical metrology these days. Here, we have developed a system to measure the linearity error of analog-to-digital converters by adopting a reference sampling voltmeter and a dummy waveform generator. With the measurement setup, we evaluated the linearities for three units of Δ-Σ analog-to-digital converter, NI-5922, combined with three different PXI chassis. We found that the maximum linearity error can change with the PXI chassis up to about 15μV/V.
ISSN:0263-2241
1873-412X
DOI:10.1016/j.measurement.2017.04.025