A bulk-driven, buffer-biased, gain-boosted amplifier for biomedical signal enhancement

The growing consciousness in health, biomedical research area is becoming most sought-after to develop or design medical devices by bringing biomedical researchers and clinicians to solve many health issues. Biomedical electronics is the endorsement and resolution of many techniques in engineering p...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Sarin Vijay Mythry, D. Jackuline Moni
Formato:	article
Lenguaje:	EN
Publicado:	Taylor & Francis Group 2019
Materias:	ota bulk driven amplifiers bio-medical neural signals signal noise Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/c8632d41a8864c49bdec5a623c8d8217
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:c8632d41a8864c49bdec5a623c8d8217
record_format	dspace
spelling	oai:doaj.org-article:c8632d41a8864c49bdec5a623c8d82172021-11-04T15:51:56ZA bulk-driven, buffer-biased, gain-boosted amplifier for biomedical signal enhancement2331-191610.1080/23311916.2019.1658966https://doaj.org/article/c8632d41a8864c49bdec5a623c8d82172019-01-01T00:00:00Zhttp://dx.doi.org/10.1080/23311916.2019.1658966https://doaj.org/toc/2331-1916The growing consciousness in health, biomedical research area is becoming most sought-after to develop or design medical devices by bringing biomedical researchers and clinicians to solve many health issues. Biomedical electronics is the endorsement and resolution of many techniques in engineering powered biology and medicine. The medical imaging accounts the design and development of electrophysiological monitoring devices to examine the whole human body for proper diagnosis. The biomedical signals are low amplitude, low frequency, are to be amplified in the range of millihertz to kilohertz while rejecting the dc offsets, created a tremendous demand amongst neuroscience researchers and clinicians. In this design capacitive feedback, neural signal recording amplifier is designed using folded cascode operational transconductance amplifier (OTA). The neural amplifier uses an AC coupled input signal to segregate the DC offset voltages generated at electrode-nerve interface due to chemical reaction and AC coupled input also represses the flicker noise. A large resistor, implemented using two series MOS devices as pseudo resistors, used in parallel to capacitive feedback to exploit device off-resistance for DC feedback normalization. This article presents a bulk-driven, buffer-biased, gain-boosted amplifier for biomedical signal is designed using 90 nm CMOS technology to capture signal activity. The bulk-driven folded cascode topology is used to design amplifier, which has reduced threshold voltage and supply voltage by consuming half the power of the conventional gate driven counter parts. The proposed and designed bulk-driven folded cascode operational transconductance amplifier (BD FC-OTA) achieved a gain of 81 dB, 39 nV/√ Hz is the recorded noise characteristics by consuming less power of 2.5 µW. The Wilson current mirror method has benefited the amplifier to enhance the gain and compensation capacitor with series resistor realized by MOSFET device is used in designing 1V powered buffer biased BD FC-OTA for biomedical applications. The layout of a proposed bulk-driven folded cascode amplifier is designed using Cadence Virtuoso has a dimensions of 17.255× 35.5μm.Sarin Vijay MythryD. Jackuline MoniTaylor & Francis Grouparticleotabulk drivenamplifiersbio-medicalneural signalssignal noiseEngineering (General). Civil engineering (General)TA1-2040ENCogent Engineering, Vol 6, Iss 1 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	ota bulk driven amplifiers bio-medical neural signals signal noise Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	ota bulk driven amplifiers bio-medical neural signals signal noise Engineering (General). Civil engineering (General) TA1-2040 Sarin Vijay Mythry D. Jackuline Moni A bulk-driven, buffer-biased, gain-boosted amplifier for biomedical signal enhancement
description	The growing consciousness in health, biomedical research area is becoming most sought-after to develop or design medical devices by bringing biomedical researchers and clinicians to solve many health issues. Biomedical electronics is the endorsement and resolution of many techniques in engineering powered biology and medicine. The medical imaging accounts the design and development of electrophysiological monitoring devices to examine the whole human body for proper diagnosis. The biomedical signals are low amplitude, low frequency, are to be amplified in the range of millihertz to kilohertz while rejecting the dc offsets, created a tremendous demand amongst neuroscience researchers and clinicians. In this design capacitive feedback, neural signal recording amplifier is designed using folded cascode operational transconductance amplifier (OTA). The neural amplifier uses an AC coupled input signal to segregate the DC offset voltages generated at electrode-nerve interface due to chemical reaction and AC coupled input also represses the flicker noise. A large resistor, implemented using two series MOS devices as pseudo resistors, used in parallel to capacitive feedback to exploit device off-resistance for DC feedback normalization. This article presents a bulk-driven, buffer-biased, gain-boosted amplifier for biomedical signal is designed using 90 nm CMOS technology to capture signal activity. The bulk-driven folded cascode topology is used to design amplifier, which has reduced threshold voltage and supply voltage by consuming half the power of the conventional gate driven counter parts. The proposed and designed bulk-driven folded cascode operational transconductance amplifier (BD FC-OTA) achieved a gain of 81 dB, 39 nV/√ Hz is the recorded noise characteristics by consuming less power of 2.5 µW. The Wilson current mirror method has benefited the amplifier to enhance the gain and compensation capacitor with series resistor realized by MOSFET device is used in designing 1V powered buffer biased BD FC-OTA for biomedical applications. The layout of a proposed bulk-driven folded cascode amplifier is designed using Cadence Virtuoso has a dimensions of 17.255× 35.5μm.
format	article
author	Sarin Vijay Mythry D. Jackuline Moni
author_facet	Sarin Vijay Mythry D. Jackuline Moni
author_sort	Sarin Vijay Mythry
title	A bulk-driven, buffer-biased, gain-boosted amplifier for biomedical signal enhancement
title_short	A bulk-driven, buffer-biased, gain-boosted amplifier for biomedical signal enhancement
title_full	A bulk-driven, buffer-biased, gain-boosted amplifier for biomedical signal enhancement
title_fullStr	A bulk-driven, buffer-biased, gain-boosted amplifier for biomedical signal enhancement
title_full_unstemmed	A bulk-driven, buffer-biased, gain-boosted amplifier for biomedical signal enhancement
title_sort	bulk-driven, buffer-biased, gain-boosted amplifier for biomedical signal enhancement
publisher	Taylor & Francis Group
publishDate	2019
url	https://doaj.org/article/c8632d41a8864c49bdec5a623c8d8217
work_keys_str_mv	AT sarinvijaymythry abulkdrivenbufferbiasedgainboostedamplifierforbiomedicalsignalenhancement AT djackulinemoni abulkdrivenbufferbiasedgainboostedamplifierforbiomedicalsignalenhancement AT sarinvijaymythry bulkdrivenbufferbiasedgainboostedamplifierforbiomedicalsignalenhancement AT djackulinemoni bulkdrivenbufferbiasedgainboostedamplifierforbiomedicalsignalenhancement
_version_	1718444676977000448

A bulk-driven, buffer-biased, gain-boosted amplifier for biomedical signal enhancement

Ejemplares similares