Rapid design exploration of low pass highly efficient single loop single bit sigma delta (ΣΔ) modulators

• Autorzy: Krishna S. Vamsee , Reddy P. Sudhakara , Reddy S. Chandra Mohan

Identyfikatory

DOI

10.24423/cames.511

• Języki publikacji: EN

Abstrakty

EN

A rapid design and verification of sigma delta modulators are presented at the systemlevel with high accuracy and computational efficiency. Sigma delta analog to digital converters showcased an excellent choice for low bandwidth applications from near DC tohigh bandwidth standard 5G applications. The conceptualization of the graphical userinterface (GUI) in the efficient selection of integrator weights has been proposed, whichsolves various tradeoffs between various abstraction levels. The sigma delta modulator of the 5th order is designed and simulated using the proposed design methodology of calculating integrator weights for targeted specifications. The efficiency of design explorationand optimum selection of integrator coefficients has been investigated on single loop architectures. Power and performance of the selected modulator has been verified in the timedomain behavioral simulation. The discrete time circuit technique has been adopted fordesign of distributed feedback, feed forward architectures and comparison of performancemetrics done between selected architectures. A huge design space is computed for the bestdesign parameters that offers ultra-low power and high performance. The proposed virtual instruments supported the methodology for designing delta sigma modulators at thesystem level achieving SNDR of 122 dB over a bandwidth of 5 kHz at a clock frequencyof 1 MHz.

Słowa kluczowe

EN

sigma delta modulator; single loop; time domain; virtual instrument; biomedical application

PL

modulator sigma delta; pojedyncza pętla; dziedzina czasu; instrument wirtualny; zastosowanie biomedyczne

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Computer Assisted Methods in Engineering and Science
• Rocznik: 2023
• Tom: Vol. 30, no. 1
• Strony: 27--39
• Opis fizyczny: Bibliogr. 20 poz., rys., tab., wykr.

Twórcy

autor

Krishna S. Vamsee

• Jawaharlal Nehru Technological University, Ananthapuramu, India

autor

Reddy P. Sudhakara

• Srikalahastweeswara Institute of Technology, Srikalahasti, India

autor

Reddy S. Chandra Mohan

• Jawaharlal Nehru Technological University, Ananthapuramu, India

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).