Design and Simulation of Second Order Sigma-Delta Modulator with Very High Precision and Low Power Consumption for Medical Applications

In this paper, a second order sigma delta modulator is presented that is suitable for medical applications. Using the amplifier and comparator circuits with low power consumption, which are utilized in integrator and comparator, respectively, the power consumption of this modulator has significantly...

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Main Authors: Mohammadreza Farsi, Khalil Monfaredi
Format: Article
Language:fas
Published: Semnan University 2018-12-01
Series:مجله مدل سازی در مهندسی
Subjects:
Online Access:https://modelling.semnan.ac.ir/article_3469_917e58448a58c93408a540926932243f.pdf
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author Mohammadreza Farsi
Khalil Monfaredi
author_facet Mohammadreza Farsi
Khalil Monfaredi
author_sort Mohammadreza Farsi
collection DOAJ
description In this paper, a second order sigma delta modulator is presented that is suitable for medical applications. Using the amplifier and comparator circuits with low power consumption, which are utilized in integrator and comparator, respectively, the power consumption of this modulator has significantly decreased; as one of essential requirements for medical devices. SNDR of the proposed modulator is obtained 102.44 dB which is equal to 16.72 bit implying a high accurate structure. System level analysis and circuit level simulation of the modulator are performed at Matlab and Cadence software, respectively. 180nm CMOS technology is utilized for simulation of the circuit. Comparing the proposed Sigma-Delta modulator with similar works reveals the superior performance of this proposed architecture considering the power consumption and accuracy. In order to accomplish a comprehensive comparison and achieve an overall insight into the performance of the circuit a figure of merit (FOM) is presented including modulator's total power consumption, effective number of bits and bandwidth.
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spelling doaj.art-4a2604c64e8b457a8573e532f7fa822a2024-02-23T19:05:45ZfasSemnan Universityمجله مدل سازی در مهندسی2008-48542783-25382018-12-01165519119710.22075/jme.2018.12865.12633469Design and Simulation of Second Order Sigma-Delta Modulator with Very High Precision and Low Power Consumption for Medical ApplicationsMohammadreza Farsi0Khalil Monfaredi1Engineering Faculty, Department of Electrical and Electronic Engineering, Azarbaijan Shahid Madani University, Tabriz, IranDepartment of Electrical and Electronic Engineering, Azarbayjan Shahid Madani University, Tabriz, IranIn this paper, a second order sigma delta modulator is presented that is suitable for medical applications. Using the amplifier and comparator circuits with low power consumption, which are utilized in integrator and comparator, respectively, the power consumption of this modulator has significantly decreased; as one of essential requirements for medical devices. SNDR of the proposed modulator is obtained 102.44 dB which is equal to 16.72 bit implying a high accurate structure. System level analysis and circuit level simulation of the modulator are performed at Matlab and Cadence software, respectively. 180nm CMOS technology is utilized for simulation of the circuit. Comparing the proposed Sigma-Delta modulator with similar works reveals the superior performance of this proposed architecture considering the power consumption and accuracy. In order to accomplish a comprehensive comparison and achieve an overall insight into the performance of the circuit a figure of merit (FOM) is presented including modulator's total power consumption, effective number of bits and bandwidth.https://modelling.semnan.ac.ir/article_3469_917e58448a58c93408a540926932243f.pdfsigma delta modulator2nd orderlow power consumptionsignal to noise ratiohigh accuracy
spellingShingle Mohammadreza Farsi
Khalil Monfaredi
Design and Simulation of Second Order Sigma-Delta Modulator with Very High Precision and Low Power Consumption for Medical Applications
مجله مدل سازی در مهندسی
sigma delta modulator
2nd order
low power consumption
signal to noise ratio
high accuracy
title Design and Simulation of Second Order Sigma-Delta Modulator with Very High Precision and Low Power Consumption for Medical Applications
title_full Design and Simulation of Second Order Sigma-Delta Modulator with Very High Precision and Low Power Consumption for Medical Applications
title_fullStr Design and Simulation of Second Order Sigma-Delta Modulator with Very High Precision and Low Power Consumption for Medical Applications
title_full_unstemmed Design and Simulation of Second Order Sigma-Delta Modulator with Very High Precision and Low Power Consumption for Medical Applications
title_short Design and Simulation of Second Order Sigma-Delta Modulator with Very High Precision and Low Power Consumption for Medical Applications
title_sort design and simulation of second order sigma delta modulator with very high precision and low power consumption for medical applications
topic sigma delta modulator
2nd order
low power consumption
signal to noise ratio
high accuracy
url https://modelling.semnan.ac.ir/article_3469_917e58448a58c93408a540926932243f.pdf
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AT khalilmonfaredi designandsimulationofsecondordersigmadeltamodulatorwithveryhighprecisionandlowpowerconsumptionformedicalapplications