Low-voltage 0.81mW, 1-32 CMOS VGA with 5% bandwidth variations and -38dB DC rejection
| dc.contributor.author | López Martín, Antonio | |
| dc.contributor.author | Rico-Aniles, Héctor Daniel | |
| dc.contributor.author | Ramírez-Angulo, Jaime | |
| dc.contributor.author | Rocha-Pérez, José Miguel | |
| dc.contributor.author | González Carvajal, Ramón | |
| dc.contributor.department | Institute of Smart Cities - ISC | en |
| dc.date.accessioned | 2020-07-23T17:31:12Z | |
| dc.date.available | 2020-07-23T17:31:12Z | |
| dc.date.issued | 2020 | |
| dc.description.abstract | A CMOS low-voltage amplifier with approximately constant bandwidth and DC rejection is introduced. The design is based on the cascade of a wide linear input range OTA, an op-amp and a servo-loop with extremely large time constants. It operates with +/-0:45V supplies and a power consumption of 0.81mW in 180nm technology. The bandwidth changes only from 9.08MHz to 9.54MHz over a gain range from 1 to 32, it has a 9.8Hz low cutoff frequency and a DC attenuation of 38dBs. DC floating voltage sources are used to keep the gates of all differential pairs at a constant value close to a supply rail in order to operate the amplifier circuit with minimum supply voltage. The proposed circuit has small and large signal figures of merit FOMSS=5380 (MHz*pF/mW) and FOMLS=0:0085((V/ns)*pF/mA) for a nominal gain A=32. | en |
| dc.description.sponsorship | This work was supported by AEI/FEDER under Grant TEC2016-80396-C2. The work of Hector Daniel Rico-Aniles was supported by the Mexican Consejo Nacional de Ciencia y Tecnologia (CONACYT) for the Academic Scholarship under Grant 408946. | en |
| dc.format.extent | 12 p. | |
| dc.format.mimetype | application/pdf | en |
| dc.identifier.doi | 10.1109/ACCESS.2020.2999315 | |
| dc.identifier.issn | 2169-3536 (Electronic) | |
| dc.identifier.uri | https://academica-e.unavarra.es/handle/2454/37369 | |
| dc.language.iso | eng | en |
| dc.publisher | IEEE | en |
| dc.relation.ispartof | IEEE Access, vol. 8, 2020 | en |
| dc.relation.projectID | info:eu-repo/grantAgreement/ES/1PE/TEC2016-80396/ | |
| dc.relation.publisherversion | https://doi.org/10.1109/ACCESS.2020.2999315 | |
| dc.rights | This work is licensed under a Creative Commons Attribution 4.0 License. | en |
| dc.rights.accessRights | info:eu-repo/semantics/openAccess | |
| dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
| dc.subject | Low-voltage | en |
| dc.subject | Low power | en |
| dc.subject | CMOS amplifiers | en |
| dc.subject | Transresistance amplifier | en |
| dc.subject | Linear transconductors. | en |
| dc.title | Low-voltage 0.81mW, 1-32 CMOS VGA with 5% bandwidth variations and -38dB DC rejection | en |
| dc.type | info:eu-repo/semantics/article | |
| dc.type.version | info:eu-repo/semantics/publishedVersion | |
| dspace.entity.type | Publication | |
| relation.isAuthorOfPublication | d3dc0470-6429-43e7-80f2-15fae67f4204 | |
| relation.isAuthorOfPublication.latestForDiscovery | d3dc0470-6429-43e7-80f2-15fae67f4204 |