Tunable Mixed-Mode Voltage Differencing Buffered Amplifier-Based Universal Filter with Independently High-Q Factor Controllability

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dc.contributor.authorRoongmuanpha, Natchanaics
dc.contributor.authorFaseehuddin, Mohammadcs
dc.contributor.authorHerencsár, Norbertcs
dc.contributor.authorTangsrirat, Worapongcs
dc.coverage.issue20cs
dc.coverage.volume11cs
dc.date.accessioned2021-10-15T14:57:19Z
dc.date.available2021-10-15T14:57:19Z
dc.date.issued2021-10-15cs
dc.description.abstractThis paper proposes the design of a mixed-mode universal biquad configuration, which realizes generic filter functions in all four possible modes, namely voltage mode (VM), current mode (CM), transadmittance mode (TAM), and transimpedance mode (TIM). The filter architecture employs two voltage differencing buffered amplifiers (VDBAs), two resistors and two capacitors, and can provide lowpass (LP), bandpass (BP), highpass (HP), bandstop (BS), and allpass (AP) biquadratic filtering responses without any circuit alteration. All passive elements used are grounded, except VM. The circuit not only allows for the electronic tuning of the natural angular frequency (o), but also achieves orthogonal tunability of the quality factor (Q). It also provides the feature of availability of output voltage at the low-output impedance terminal in VM and TIM, and does not require inverting-type or double-type input signals to realize all the responses. Moreover, in all modes of operation, the high-Q filter can be easily obtained by adjusting a single resistance value. Influences of the VDBA nonidealities and parasitic elements are also discussed in detail. PSPICE simulations with TSMC 0.18-µm CMOS process parameters and experimental testing results with commercially available IC LT1228s have been used to validate the theoretical predictions.en
dc.formattextcs
dc.format.extent1-27cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationApplied Sciences - Basel. 2021, vol. 11, issue 20, p. 1-27.en
dc.identifier.doi10.3390/app11209606cs
dc.identifier.issn2076-3417cs
dc.identifier.other172793cs
dc.identifier.urihttp://hdl.handle.net/11012/201786
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofApplied Sciences - Baselcs
dc.relation.urihttps://www.mdpi.com/2076-3417/11/20/9606cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2076-3417/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectactive filteren
dc.subjectmixed modeen
dc.subjectuniversal biquadratic filteren
dc.subjectvoltage differencing buffered amplifier (VDBA)en
dc.titleTunable Mixed-Mode Voltage Differencing Buffered Amplifier-Based Universal Filter with Independently High-Q Factor Controllabilityen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-172793en
sync.item.dbtypeVAVen
sync.item.insts2022.04.19 20:56:09en
sync.item.modts2022.04.19 20:15:18en
thesis.grantorVysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií. Ústav telekomunikacícs
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