0.5-V High Linear and Wide Tunable OTA for Biomedical Applications
This paper presents a low-voltage nano-power multiple-input operational transconductance amplifier (MI-OTA) with high linearity performance and increased input voltage swing. The enhanced performances are achieved thanks to employing several techniques as the bulk-driven, source-degeneration, self-c...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2021-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9490226/ |
| _version_ | 1819041825210499072 |
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| author | Fabian Khateb Tomasz Kulej Meysam Akbari Montree Kumngern |
| author_facet | Fabian Khateb Tomasz Kulej Meysam Akbari Montree Kumngern |
| author_sort | Fabian Khateb |
| collection | DOAJ |
| description | This paper presents a low-voltage nano-power multiple-input operational transconductance amplifier (MI-OTA) with high linearity performance and increased input voltage swing. The enhanced performances are achieved thanks to employing several techniques as the bulk-driven, source-degeneration, self-cascode and negative conductance along with the concept of the input signal attenuation formed by multiple-input MOS transistor. The MI-OTA is widely tunable that serves for biological signals processing. A 3<sup>rd</sup>-order Butterworth band-pass filter (BPF) for electrocardiogram (ECG) signal processing with 55.8 dB dynamic rang is presented. The MI-OTA circuit is designed for 0.5V voltage supply and offers a 0.22% total harmonic distortion (THD) for 0.2V<sub>pp</sub> input signal with total power consumption of 13.4nW. Extensive simulation results including Monte Carlo analysis and process, voltage, temperature (PVT) corners using the <inline-formula> <tex-math notation="LaTeX">$0.18\mu \text{m}$ </tex-math></inline-formula> CMOS technology from TSMC confirm the characteristics of the proposed MI-OTA and the filter. |
| first_indexed | 2024-12-21T09:31:09Z |
| format | Article |
| id | doaj.art-08dc0b7d91fe4e83a21595d7f1980915 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-21T09:31:09Z |
| publishDate | 2021-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-08dc0b7d91fe4e83a21595d7f19809152022-12-21T19:08:45ZengIEEEIEEE Access2169-35362021-01-01910378410379410.1109/ACCESS.2021.309818394902260.5-V High Linear and Wide Tunable OTA for Biomedical ApplicationsFabian Khateb0https://orcid.org/0000-0002-9864-9830Tomasz Kulej1https://orcid.org/0000-0002-6315-9292Meysam Akbari2Montree Kumngern3https://orcid.org/0000-0002-1960-9081Department of Microelectronics, Brno University of Technology, Brno, Czech RepublicDepartment of Electrical Engineering, Czestochowa University of Technology, Czestochowa, PolandDepartment of Electrical Engineering, National Tsing Hua University, Hsinchu, TaiwanDepartment of Telecommunications Engineering, School of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Bangkok, ThailandThis paper presents a low-voltage nano-power multiple-input operational transconductance amplifier (MI-OTA) with high linearity performance and increased input voltage swing. The enhanced performances are achieved thanks to employing several techniques as the bulk-driven, source-degeneration, self-cascode and negative conductance along with the concept of the input signal attenuation formed by multiple-input MOS transistor. The MI-OTA is widely tunable that serves for biological signals processing. A 3<sup>rd</sup>-order Butterworth band-pass filter (BPF) for electrocardiogram (ECG) signal processing with 55.8 dB dynamic rang is presented. The MI-OTA circuit is designed for 0.5V voltage supply and offers a 0.22% total harmonic distortion (THD) for 0.2V<sub>pp</sub> input signal with total power consumption of 13.4nW. Extensive simulation results including Monte Carlo analysis and process, voltage, temperature (PVT) corners using the <inline-formula> <tex-math notation="LaTeX">$0.18\mu \text{m}$ </tex-math></inline-formula> CMOS technology from TSMC confirm the characteristics of the proposed MI-OTA and the filter.https://ieeexplore.ieee.org/document/9490226/Operational transconductance amplifier (OTA)bulk-driven MOS transistormultiple-input OTAhigh-order filters |
| spellingShingle | Fabian Khateb Tomasz Kulej Meysam Akbari Montree Kumngern 0.5-V High Linear and Wide Tunable OTA for Biomedical Applications IEEE Access Operational transconductance amplifier (OTA) bulk-driven MOS transistor multiple-input OTA high-order filters |
| title | 0.5-V High Linear and Wide Tunable OTA for Biomedical Applications |
| title_full | 0.5-V High Linear and Wide Tunable OTA for Biomedical Applications |
| title_fullStr | 0.5-V High Linear and Wide Tunable OTA for Biomedical Applications |
| title_full_unstemmed | 0.5-V High Linear and Wide Tunable OTA for Biomedical Applications |
| title_short | 0.5-V High Linear and Wide Tunable OTA for Biomedical Applications |
| title_sort | 0 5 v high linear and wide tunable ota for biomedical applications |
| topic | Operational transconductance amplifier (OTA) bulk-driven MOS transistor multiple-input OTA high-order filters |
| url | https://ieeexplore.ieee.org/document/9490226/ |
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