FEATURES OF DESIGN OF HIGH-PRECISION SIGMA-DELTA
ADC AS PART OF INFORMATION-MEASURING SYSTEMS 

Chuvykin Boris Viktorovich, doctor of technical sciences, professor of sub-department of information computer systems, Penza State University, chuvykin_bv@mail.ru
Dolgova Irina Anatol'evna, сandidate of technical sciences, associate professor of sub-department of information computer systems, Penza State University, Dolgova_IA@mail.ru
Sidorova Irina Aleksandrovna, graduate student, Penza State University, irina-penza@mail.ru

 681.518.3

Some features and design methods of high-precision sigma-delta ADCs in the information-measuring systems are considered. A review of modern sigma-delta ADC, produced the world's leading companies is held. A mathematical model of the sigma-delta modulator k-order is presented. The sings of chaotic fluctuations that occur in nonlinear discretecontinuous systems, conclusions are made.

sigma-delta ADC, information-measuring systems, nonlinear continuousdiscrete systems, sigma-delta modulator, periodic fluctuations, chaotic fluctuations, design methods