1 V Tunable High-Quality Universal Filter Using Multiple-Input Operational Transconductance Amplifiers

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dc.contributor.authorKumngern, Montreecs
dc.contributor.authorKhateb, Fabiancs
dc.contributor.authorKulej, Tomaszcs
dc.contributor.authorKnobnob, Boonyingcs
dc.coverage.issue10cs
dc.coverage.volume24cs
dc.date.issued2024-05-09cs
dc.description.abstractThis paper presents a new multiple-input single-output voltage-mode universal filter employing four multiple-input operational transconductance amplifiers (MI-OTAs) and three grounded capacitors suitable for low-voltage low-frequency applications. The quality factor (Q) of the filter functions can be tuned by both the capacitance ratio and the transconductance ratio. The multiple inputs of the OTA are realized using the bulk-driven multiple-input MOS transistor technique. The MI-OTA-based filter can also offer many filtering functions without additional circuitry requirements, such as an inverting amplifier to generate an inverted input signal. The proposed filter can simultaneously realize low-pass, high-pass, band-pass, band-stop, and all-pass responses, covering both non-inverting and inverting transfer functions in a single topology. The natural frequency and the quality factors of all the filtering functions can be controlled independently. The natural frequency can also be electronically controlled by tuning the transconductances of the OTAs. The proposed filter uses a 1 V supply voltage, consumes 120 mu W of power for a 5 mu A setting current, offers 40 dB of dynamic range and has a third intermodulation distortion of -43.6 dB. The performances of the proposed circuit were simulated using a 0.18 mu m TSMC CMOS process in the Cadence Virtuoso System Design Platform to confirm the performance of the topology.en
dc.formattextcs
dc.format.extent1-16cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationSENSORS. 2024, vol. 24, issue 10, p. 1-16.en
dc.identifier.doi10.3390/s24103013cs
dc.identifier.issn1424-8220cs
dc.identifier.orcid0000-0002-9864-9830cs
dc.identifier.other188882cs
dc.identifier.researcheridO-6465-2014cs
dc.identifier.scopus36185268100cs
dc.identifier.urihttp://hdl.handle.net/11012/249159
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofSENSORScs
dc.relation.urihttps://doi.org/10.3390/s24103013cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1424-8220/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectuniversal filteren
dc.subjectvoltage-mode circuiten
dc.subjectoperational transconductance amplifieren
dc.title1 V Tunable High-Quality Universal Filter Using Multiple-Input Operational Transconductance Amplifiersen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-188882en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:41:19en
sync.item.modts2025.01.17 15:36:56en
thesis.grantorVysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií. Ústav mikroelektronikycs
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