DTMOS-Based 0.4V Ultra Low-Voltage Low-Power VDTA Design and Its Application to EEG Data Processing

In this paper, an ultra low-voltage, ultra low-power voltage differencing transconductance amplifier (VDTA) is proposed. DTMOS (Dynamic Threshold Voltage MOS) transistors are employed in the design to effectively use the ultra low supply voltage. The proposed VDTA is composed of two operational tran...

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Main Authors: A. Uygur, H. Kuntman
Format: Article
Language:English
Published: Spolecnost pro radioelektronicke inzenyrstvi 2013-06-01
Series:Radioengineering
Subjects:
Online Access:http://www.radioeng.cz/fulltexts/2013/13_02_0458_0466.pdf
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author A. Uygur
H. Kuntman
author_facet A. Uygur
H. Kuntman
author_sort A. Uygur
collection DOAJ
description In this paper, an ultra low-voltage, ultra low-power voltage differencing transconductance amplifier (VDTA) is proposed. DTMOS (Dynamic Threshold Voltage MOS) transistors are employed in the design to effectively use the ultra low supply voltage. The proposed VDTA is composed of two operational transconductance amplifiers operating in the subthreshold region. Using TSMC 0.18µm process technology parameters with symmetric ±0.2V sup¬ply voltage, the total power consumption of the VDTA block is found as just 5.96 nW when the transconductances have 3.3 kHz, 3 dB bandwidth. The proposed VDTA circuit is then used in a fourth-order double-tuned band-pass filter for processing real EEG data measurements. The filter achieves close to 64 dB dynamic range at 2% THD with a total power consumption of 12.7 nW.
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spelling doaj.art-67ee102d446649c18c3536021af1c78c2022-12-22T00:19:48ZengSpolecnost pro radioelektronicke inzenyrstviRadioengineering1210-25122013-06-01222458466DTMOS-Based 0.4V Ultra Low-Voltage Low-Power VDTA Design and Its Application to EEG Data ProcessingA. UygurH. KuntmanIn this paper, an ultra low-voltage, ultra low-power voltage differencing transconductance amplifier (VDTA) is proposed. DTMOS (Dynamic Threshold Voltage MOS) transistors are employed in the design to effectively use the ultra low supply voltage. The proposed VDTA is composed of two operational transconductance amplifiers operating in the subthreshold region. Using TSMC 0.18µm process technology parameters with symmetric ±0.2V sup¬ply voltage, the total power consumption of the VDTA block is found as just 5.96 nW when the transconductances have 3.3 kHz, 3 dB bandwidth. The proposed VDTA circuit is then used in a fourth-order double-tuned band-pass filter for processing real EEG data measurements. The filter achieves close to 64 dB dynamic range at 2% THD with a total power consumption of 12.7 nW.www.radioeng.cz/fulltexts/2013/13_02_0458_0466.pdfUltra low-powerultra low-voltageDTMOSVDTAanalog building blocksEEG data processing
spellingShingle A. Uygur
H. Kuntman
DTMOS-Based 0.4V Ultra Low-Voltage Low-Power VDTA Design and Its Application to EEG Data Processing
Radioengineering
Ultra low-power
ultra low-voltage
DTMOS
VDTA
analog building blocks
EEG data processing
title DTMOS-Based 0.4V Ultra Low-Voltage Low-Power VDTA Design and Its Application to EEG Data Processing
title_full DTMOS-Based 0.4V Ultra Low-Voltage Low-Power VDTA Design and Its Application to EEG Data Processing
title_fullStr DTMOS-Based 0.4V Ultra Low-Voltage Low-Power VDTA Design and Its Application to EEG Data Processing
title_full_unstemmed DTMOS-Based 0.4V Ultra Low-Voltage Low-Power VDTA Design and Its Application to EEG Data Processing
title_short DTMOS-Based 0.4V Ultra Low-Voltage Low-Power VDTA Design and Its Application to EEG Data Processing
title_sort dtmos based 0 4v ultra low voltage low power vdta design and its application to eeg data processing
topic Ultra low-power
ultra low-voltage
DTMOS
VDTA
analog building blocks
EEG data processing
url http://www.radioeng.cz/fulltexts/2013/13_02_0458_0466.pdf
work_keys_str_mv AT auygur dtmosbased04vultralowvoltagelowpowervdtadesignanditsapplicationtoeegdataprocessing
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