High-Level Design of the Analog Discrete-Time Sigma-Delta Modulators

Abstract

Integrated circuits of the sigma-delta analog-to-digital converters are widely used in data acquisition and processing devices due to their higher effective bit capacity compared to converters based on the other architectures. A sigma-delta modulator is an important functional unit in their composition. The paper considers software tools for high-level design of the analog discrete sigma-delta modulators. It provides a route for high-level design of the circuits of this type and describes the factors complicating it. Three most commonly used software tools for automated high-level design of the analog discrete sigma-delta modulators operating on three different software platforms are considered. For each design approach, an example is presented of working with the program, i.e., computation of the scaling coefficients of the analog discrete sigma-delta modulator with the given initial parameters. The considered software tools are being comparatively analyzed; features of their use, advantages and disadvantages are noted. It is revealed that in order to more effectively achieve the goals of using the presented software tools, it is required to combine them in the design route. Recommendations are provided for developers of the analog discrete sigma-delta modulators on options for using the considered design tools

Please cite this article in English as:

Khalzev S.E., Makarchuk V.V., Volkov I.V., et al. High-level design of the analog discrete-time sigma-delta modulators. Herald of the Bauman Moscow State Technical University, Series Instrument Engineering, 2024, no. 2 (147), pp. 125--144 (in Russ.). EDN: RASAFQ

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