MULTI-CHANNEL DIGITAL-ANALOG SYSTEM BASED ON CURRENT-CURRENT CONVERTERS
Olexiy Azarov
azarov2@vntu.edu.uaVinnitsa National Technical University (Ukraine)
http://orcid.org/0000-0002-8501-1379
Yevhenii Heneralnytskyi
Vinnitsa National Technical University (Ukraine)
http://orcid.org/0000-0003-0205-382X
Nataliia Rybko
Vinnitsa National Technical University (Ukraine)
http://orcid.org/0000-0002-6968-3044
Abstract
An approach to building a multi-channel digital-analog system is proposed, in which, unlike the known ones, a code-current converter, a controlled current generator, and also a current communication block are used. For a given accuracy, this saves on the analog system equipment. It has been shown that the proposed principle of building a controlled current source in the form of a highly linear push-pull amplifier – current scalar on bipolar transistors with a grounded load – has a high output resistance and wide bandwidth, which allows the use of current switching to implement the multi-channel system mode.
Keywords:
DAC, frequency response, phase response, linearity error of the transfer characteristicReferences
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Authors
Olexiy Azarovazarov2@vntu.edu.ua
Vinnitsa National Technical University Ukraine
http://orcid.org/0000-0002-8501-1379
Authors
Yevhenii HeneralnytskyiVinnitsa National Technical University Ukraine
http://orcid.org/0000-0003-0205-382X
Authors
Nataliia RybkoVinnitsa National Technical University Ukraine
http://orcid.org/0000-0002-6968-3044
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