Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/91743
Title: A circuit based behavioral modeling of Continuous-Time Sigma Delta modulators
Authors: Leow, Yoon Hwee
Zhang, Fan
Teh, Li Lian
Siek, Liter
Keywords: DRNTU::Engineering::Electrical and electronic engineering::Electronic circuits
Issue Date: 2009
Source: Leow, Y. H., Zhang, F., Teh, L. L., & Siek, L. (2009). A circuit based behavioral modeling of Continuous-Time Sigma Delta modulators. In proceedings of the 12th International Symposium on Integrated Circuits: Singapore, (pp.109-112).
Abstract: In evaluating Continuous-Time Sigma Delta (ΣΔ) Modulators, the generation of highly accurate results requires long simulation time due to the nonlinear nature of the system. In most cases, a compromise has to be made to trade off precision for speed [2]. This paper presents a circuit-based high level model implemented in the MATLAB SIMULINK environment so as to achieve a faster speed of simulation. Designed in a differential manner, the model provides good visualization of the actual circuit at the early stage of design. To maintain simulation accuracy, circuit nonidealities such as system clock jitter, integrator noise, opamp finite gain, bandwidth and slew rate as well as the digital to analog converter (DAC) mismatches are included in the model. For demonstration purpose, a 4th order CT ΣΔ modulator with NRZ (Non-Return to Zero) architecture is implemented. With the proposed models, key design specifications for the functional building blocks are derived.
URI: https://hdl.handle.net/10356/91743
http://hdl.handle.net/10220/6367
Rights: © 2009 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. http://www.ieee.org/portal/site This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Conference Papers

Files in This Item:
File Description SizeFormat 
A Circuit-based Behavioral Modeling of Continuous-time Sigma Delta Modulators.pdf464.31 kBAdobe PDFThumbnail
View/Open

Google ScholarTM

Check

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.