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Author: Pablo Diaz Lobo
Year: Since 2002

Journal Papers

High-Level Design of Sigma-Delta Modulators using Artificial Neural Networks
P. Díaz-Lobo and J.M. de la Rosa
Journal Paper · IEEE International Symposium on Circuits and Systems ISCAS 2023
abstract      doi      

This paper analyses the use of Artificial Neural Networks (ANNs) for the high-level synthesis and design of Sigma-Delta Modulators (ΣΔMs) . The presented methodology is based on training ANNs to identify optimum design patterns, so that they can learn to predict the best set of design variables for a given set of specifications. This strategy has been successfully applied in prior works to design basic analog building blocks, and it is explored in this work to automate the high-level sizing of ΣΔMs . Several ΣΔM case studies, which include both single-loop and cascade topologies as well as Switched-Capacitor (SC) and Continuous-Time (CT) circuit techniques are shown. The effect of ANN hyperparameters - such as the number of layers, neurons per layer, batch size, number of epochs, etc. - is analyzed in order to find out the best ANN architecture that finds an optimum design with less computational resources. A comparison with other optimization methods - such as genetic algorithms and gradient descent - is shown, demonstrating that the presented approach yields to more efficient design solutions in terms of performance metrics, power consumption and CPU time 1 1 This work was supported in part by Grant PID2019-103876RB-I00, funded by MCIN/AEI/10.13039/501100011033, by the European Union ESF Investing in your future, and by ’’Junta de Andalucía’’ under Grant P20-00599.


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