{"title":"CMOS multifunctional structure, with applications in analog signal processing","authors":"Cosmin Radu Popa","doi":"10.1016/j.vlsi.2025.102377","DOIUrl":null,"url":null,"abstract":"<div><div>The paper will present an original multifunctional circuit that is able to implement (using the same functional core) a multitude of linear and nonlinear useful circuit functions: differential amplifiers and multiplier circuits with excellent linearity and extended range of the input amplitudes, squaring computational circuits, active resistors and function synthesizer structures with improved accuracy. The advantages of using this approach of designing analog signal processing structures are mainly related to the very important reducing of circuit complexity and accuracy for each developed circuit function. The circuits are designed for low-voltage low-power operations, being supplied at 0.7 V and consuming between 0.3uA and 0.9uA. They allow extremely large amplitude of the input signal (between −800mV and 800 mV), being able to obtain a very good accuracy of circuit functions implementations. The estimated theoretical results are confirmed by specific simulations, showing an excellent accuracy, correlated with a low-voltage low-power operation.</div></div>","PeriodicalId":54973,"journal":{"name":"Integration-The Vlsi Journal","volume":"102 ","pages":"Article 102377"},"PeriodicalIF":2.2000,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Integration-The Vlsi Journal","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0167926025000343","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"COMPUTER SCIENCE, HARDWARE & ARCHITECTURE","Score":null,"Total":0}
引用次数: 0
Abstract
The paper will present an original multifunctional circuit that is able to implement (using the same functional core) a multitude of linear and nonlinear useful circuit functions: differential amplifiers and multiplier circuits with excellent linearity and extended range of the input amplitudes, squaring computational circuits, active resistors and function synthesizer structures with improved accuracy. The advantages of using this approach of designing analog signal processing structures are mainly related to the very important reducing of circuit complexity and accuracy for each developed circuit function. The circuits are designed for low-voltage low-power operations, being supplied at 0.7 V and consuming between 0.3uA and 0.9uA. They allow extremely large amplitude of the input signal (between −800mV and 800 mV), being able to obtain a very good accuracy of circuit functions implementations. The estimated theoretical results are confirmed by specific simulations, showing an excellent accuracy, correlated with a low-voltage low-power operation.
期刊介绍:
Integration''s aim is to cover every aspect of the VLSI area, with an emphasis on cross-fertilization between various fields of science, and the design, verification, test and applications of integrated circuits and systems, as well as closely related topics in process and device technologies. Individual issues will feature peer-reviewed tutorials and articles as well as reviews of recent publications. The intended coverage of the journal can be assessed by examining the following (non-exclusive) list of topics:
Specification methods and languages; Analog/Digital Integrated Circuits and Systems; VLSI architectures; Algorithms, methods and tools for modeling, simulation, synthesis and verification of integrated circuits and systems of any complexity; Embedded systems; High-level synthesis for VLSI systems; Logic synthesis and finite automata; Testing, design-for-test and test generation algorithms; Physical design; Formal verification; Algorithms implemented in VLSI systems; Systems engineering; Heterogeneous systems.