Complementary metal oxide semiconductor electrocardiogram amplifier for low power wearable cardiac screening

Cardiovascular disease is the number one killer disease in Malaysia. Although sudden cardiac arrest is the main cause of death, the Malaysian awareness of towards cardiovascular disease is still low. The trend of health care screening devices in the world is increasingly towards the favor of portabi...

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Main Author:	Ow, Tze Weng
Format:	Thesis
Language:	English
Published:	2016
Subjects:	TK Electrical engineering Electronics Nuclear engineering
Online Access:	http://eprints.utm.my/id/eprint/78391/1/OwTzeWengMFKE2016.pdf
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spelling	my-utm-ep.783912018-08-26T04:56:24Z Complementary metal oxide semiconductor electrocardiogram amplifier for low power wearable cardiac screening 2016-06 Ow, Tze Weng TK Electrical engineering. Electronics Nuclear engineering Cardiovascular disease is the number one killer disease in Malaysia. Although sudden cardiac arrest is the main cause of death, the Malaysian awareness of towards cardiovascular disease is still low. The trend of health care screening devices in the world is increasingly towards the favor of portability and wearability, especially in the most common electrocardiogram (ECG) monitoring system. This is because these wearable screening devices are not restricting the patient’s freedom and daily activities. While the demand of low power and low cost biomedical system on chip (SoC) is increasing in exponential way, the front end ECG amplifiers are still suffering from flicker noise for low frequency cardiac signal acquisition, 50 Hz power line electromagnetic interference, and the large unstable input offsets due to the electrodeskin interface is not attached properly. In this project, a high performance ECG amplifier that suitable for low power wearable cardiac screening is proposed. The amplifier adopts the highly stable folded cascode topology and later being implemented into RC feedback circuit for low frequency DC offset cancellation. By using 0.13 µm CMOS technology from Silterra, the simulation results show that this front end circuit can achieve a very low input referred noise of 1 pV=pHz and high common mode rejection ratio (CMRR) of 174.05 dB. It also gives voltage gain of 75.45 dB with good power supply rejection ratio (PSSR) of 92.12 dB. The total power consumption is only 3 µW and thus suitable to be implemented with further signal processing and classification back end for low power biomedical SoC. 2016-06 Thesis http://eprints.utm.my/id/eprint/78391/ http://eprints.utm.my/id/eprint/78391/1/OwTzeWengMFKE2016.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:94014 masters Universiti Teknologi Malaysia, Faculty of Electrical Engineering Faculty of Electrical Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TK Electrical engineering Electronics Nuclear engineering
spellingShingle	TK Electrical engineering Electronics Nuclear engineering Ow, Tze Weng Complementary metal oxide semiconductor electrocardiogram amplifier for low power wearable cardiac screening
description	Cardiovascular disease is the number one killer disease in Malaysia. Although sudden cardiac arrest is the main cause of death, the Malaysian awareness of towards cardiovascular disease is still low. The trend of health care screening devices in the world is increasingly towards the favor of portability and wearability, especially in the most common electrocardiogram (ECG) monitoring system. This is because these wearable screening devices are not restricting the patient’s freedom and daily activities. While the demand of low power and low cost biomedical system on chip (SoC) is increasing in exponential way, the front end ECG amplifiers are still suffering from flicker noise for low frequency cardiac signal acquisition, 50 Hz power line electromagnetic interference, and the large unstable input offsets due to the electrodeskin interface is not attached properly. In this project, a high performance ECG amplifier that suitable for low power wearable cardiac screening is proposed. The amplifier adopts the highly stable folded cascode topology and later being implemented into RC feedback circuit for low frequency DC offset cancellation. By using 0.13 µm CMOS technology from Silterra, the simulation results show that this front end circuit can achieve a very low input referred noise of 1 pV=pHz and high common mode rejection ratio (CMRR) of 174.05 dB. It also gives voltage gain of 75.45 dB with good power supply rejection ratio (PSSR) of 92.12 dB. The total power consumption is only 3 µW and thus suitable to be implemented with further signal processing and classification back end for low power biomedical SoC.
format	Thesis
qualification_level	Master's degree
author	Ow, Tze Weng
author_facet	Ow, Tze Weng
author_sort	Ow, Tze Weng
title	Complementary metal oxide semiconductor electrocardiogram amplifier for low power wearable cardiac screening
title_short	Complementary metal oxide semiconductor electrocardiogram amplifier for low power wearable cardiac screening
title_full	Complementary metal oxide semiconductor electrocardiogram amplifier for low power wearable cardiac screening
title_fullStr	Complementary metal oxide semiconductor electrocardiogram amplifier for low power wearable cardiac screening
title_full_unstemmed	Complementary metal oxide semiconductor electrocardiogram amplifier for low power wearable cardiac screening
title_sort	complementary metal oxide semiconductor electrocardiogram amplifier for low power wearable cardiac screening
granting_institution	Universiti Teknologi Malaysia, Faculty of Electrical Engineering
granting_department	Faculty of Electrical Engineering
publishDate	2016
url	http://eprints.utm.my/id/eprint/78391/1/OwTzeWengMFKE2016.pdf
_version_	1747817977772769280

Complementary metal oxide semiconductor electrocardiogram amplifier for low power wearable cardiac screening

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