Input Currents of CMOS SAR ADC in Microcontroller, their Measurement and Behavior Model from Users Point of View
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F24%3A00375579" target="_blank" >RIV/68407700:21230/24:00375579 - isvavai.cz</a>
Result on the web
<a href="http://hdl.handle.net/10467/121990" target="_blank" >http://hdl.handle.net/10467/121990</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.measurement.2024.115143" target="_blank" >10.1016/j.measurement.2024.115143</a>
Alternative languages
Result language
angličtina
Original language name
Input Currents of CMOS SAR ADC in Microcontroller, their Measurement and Behavior Model from Users Point of View
Original language description
The article introduces possible issue of internal CMOS SAR microcontroller's ADC input currents. It describes a nature of the ADC input current and its dependence on a sampling frequency. Methods for measurement of parameters such as input charge, residual voltage, and equivalent capacitance of sample-hold circuits are presented and used in the proposed simplified model of ADC input behavior. These parameters, which are not listed in datasheets, if not respected in data acquisition designs, can adversely affect how the ADC is used when measuring signal sources with nonnegligible internal resistance. The article also explains how to solve a voltage measurement on a source with high internal resistance even in a situation where, according to datasheets, it should already have limitations. The proposed simplified CMOS SAR ADC input behavior model in an MCU can help users in MCU-based data acquisition system design.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20201 - Electrical and electronic engineering
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Measurement
ISSN
0263-2241
e-ISSN
1873-412X
Volume of the periodical
236
Issue of the periodical within the volume
236
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
1-10
UT code for WoS article
001332471400001
EID of the result in the Scopus database
2-s2.0-85196557252