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A chopper amplifier with a pseudo MOS resistor-based tunable bandwidth for EEG applications.

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Title: A chopper amplifier with a pseudo MOS resistor-based tunable bandwidth for EEG applications.
Authors: Sajja, Amrita1 (AUTHOR) amritasajja@gmail.com, Rooban, S.2 (AUTHOR)
Source: Microelectronics International. 2023, Vol. 40 Issue 3, p198-205. 8p.
Subjects: Operational amplifiers, Bandwidths, Electroencephalography, Biomedical signal processing, Data analysis, Capacitors, Wakefulness
Abstract: Purpose: The purpose of chopper amplifier is to provide the wideband frequency to support biomedical signals. Design/methodology/approach: This paper proposes a chopper-stabilized amplifier with a cascoded operational transconductance amplifier. The high impedance loop is established using an MOS pseudo resistor and with a tunable MOS capacitor. Findings: The total power consumption is 451 nW with a supplied voltage of 800 mV. The Gain and common mode rejection ratio are 48 dB and 78 dB, respectively. Research limitations/implications: All kinds of real time data analysis was not carried out, only few test samples related to EEG signals are validated because the real time chip was not manufactured due to funding issues. Practical implications: The proposed work was validated with Monte-Carlo simulations. There is no external funding for the proposed work. So there is no fabrication for the design. But post simulations are performed. Originality/value: The high impedance loop is established using an MOS pseudo resistor and with a tunable MOS capacitor. To the best of the author's knowledge, this concept is completely novel and there are no publications on this work. All the modules designed for chopper amplifier are new concepts. [ABSTRACT FROM AUTHOR]
Copyright of Microelectronics International is the property of Emerald Publishing Limited and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 164083631
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: A chopper amplifier with a pseudo MOS resistor-based tunable bandwidth for EEG applications.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Sajja%2C+Amrita%22">Sajja, Amrita</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> amritasajja@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Rooban%2C+S%2E%22">Rooban, S.</searchLink><relatesTo>2</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Microelectronics+International%22">Microelectronics International</searchLink>. 2023, Vol. 40 Issue 3, p198-205. 8p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Operational+amplifiers%22">Operational amplifiers</searchLink><br /><searchLink fieldCode="DE" term="%22Bandwidths%22">Bandwidths</searchLink><br /><searchLink fieldCode="DE" term="%22Electroencephalography%22">Electroencephalography</searchLink><br /><searchLink fieldCode="DE" term="%22Biomedical+signal+processing%22">Biomedical signal processing</searchLink><br /><searchLink fieldCode="DE" term="%22Data+analysis%22">Data analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Capacitors%22">Capacitors</searchLink><br /><searchLink fieldCode="DE" term="%22Wakefulness%22">Wakefulness</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Purpose: The purpose of chopper amplifier is to provide the wideband frequency to support biomedical signals. Design/methodology/approach: This paper proposes a chopper-stabilized amplifier with a cascoded operational transconductance amplifier. The high impedance loop is established using an MOS pseudo resistor and with a tunable MOS capacitor. Findings: The total power consumption is 451 nW with a supplied voltage of 800 mV. The Gain and common mode rejection ratio are 48 dB and 78 dB, respectively. Research limitations/implications: All kinds of real time data analysis was not carried out, only few test samples related to EEG signals are validated because the real time chip was not manufactured due to funding issues. Practical implications: The proposed work was validated with Monte-Carlo simulations. There is no external funding for the proposed work. So there is no fabrication for the design. But post simulations are performed. Originality/value: The high impedance loop is established using an MOS pseudo resistor and with a tunable MOS capacitor. To the best of the author's knowledge, this concept is completely novel and there are no publications on this work. All the modules designed for chopper amplifier are new concepts. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Microelectronics International is the property of Emerald Publishing Limited and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1108/MI-06-2022-0106
    Languages:
      – Code: eng
        Text: English
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      Pagination:
        PageCount: 8
        StartPage: 198
    Subjects:
      – SubjectFull: Operational amplifiers
        Type: general
      – SubjectFull: Bandwidths
        Type: general
      – SubjectFull: Electroencephalography
        Type: general
      – SubjectFull: Biomedical signal processing
        Type: general
      – SubjectFull: Data analysis
        Type: general
      – SubjectFull: Capacitors
        Type: general
      – SubjectFull: Wakefulness
        Type: general
    Titles:
      – TitleFull: A chopper amplifier with a pseudo MOS resistor-based tunable bandwidth for EEG applications.
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            NameFull: Sajja, Amrita
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            NameFull: Rooban, S.
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            – D: 01
              M: 07
              Text: 2023
              Type: published
              Y: 2023
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              Value: 40
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              Value: 3
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            – TitleFull: Microelectronics International
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