Polynomial approximation of the transfer function of an analog-to-digital converter | Zendy

Daniel Belega | Zendy; Dan Stoiciu | Zendy

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Polynomial approximation of the transfer function of an analog-to-digital converter

Author(s) -

Daniel Belega,

Dan Stoiciu

Publication year - 2004

Publication title -

facta universitatis - series electronics and energetics

Language(s) - English

Resource type - Journals

eISSN - 2217-5997

pISSN - 0353-3670

DOI - 10.2298/fuee0403443b

Subject(s) - polynomial , transfer function , harmonic , mathematics , function (biology) , sine wave , analog to digital converter , sine , spouge's approximation , harmonic function , mathematical analysis , minimax approximation algorithm , physics , engineering , geometry , electrical engineering , voltage , quantum mechanics , evolutionary biology , biology

In this paper the polynomial approximation of the transfer function of an analog-to-digital converter (ADC) affected by harmonic distortions is investigated. The theoretical expression of the polynomial approximation of the transfer function of an ADC with harmonic components up to 5th order in the case of a sine wave test signal is derived. Also, a practical method to determine the polynomial approximation of an ADC is proposed. The simulation effected confirmed that the results obtained by this method are very accurate. Moreover, an ADC test system, developed to determine the polynomial approximation of the transfer function of an ADC by the proposed method is presented. Some experimental results obtained with this test system are given.

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