High-Precision CMOS Analog Computational Circuits Based on a New Linearly Tunable OTA

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dc.contributor.authorSaatlo, Ali Naderi
dc.coverage.issue2cs
dc.coverage.volume25cs
dc.date.accessioned2016-08-12T06:57:38Z
dc.date.available2016-08-12T06:57:38Z
dc.date.issued2016-06cs
dc.description.abstractImplementation of CMOS current-mode analog computational circuits are presented in this paper. A new Linearly Tunable OTA is employed in a modified structure as a basic building block for implementation of the circuits either linear or nonlinear functions. The proposed trans-conductance amplifier provides a constant Gm over a wide range of input voltage which allows the implementation of high precision computational circuits including square rooting, squaring, multiplication and division functions. Layout pattern of the proposed circuit confirms that the circuit can be implemented in 102μm*69μm active area. In order to verify the performance of the circuits, the post layout simulation results are presented through the use of HSPICE and Cadence with TSMC level 49 (BSIM3v3) parameters for 0.18 μm CMOS technology, where under supply voltage of 1.8 V, the maximum relative error of the circuits within 500 µA of input range is about 11 μA (2.2 % error) and the THD remains as low as 1.2 % for the worst case. Moreover, the power dissipation of the complete structure is found to be 0.66 mW.en
dc.formattextcs
dc.format.extent297-304cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2016 vol. 25, č. 2, s. 297-304. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2016.0297en
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/63052
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttp://www.radioeng.cz/fulltexts/2016/16_02_0297_0304.pdfcs
dc.rightsCreative Commons Attribution 3.0 Unported Licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en
dc.subjectComputational circuitsen
dc.subjecttrans-conductance circuiten
dc.subjectanalog designen
dc.subjectcurrent modeen
dc.titleHigh-Precision CMOS Analog Computational Circuits Based on a New Linearly Tunable OTAen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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