000032218 001__ 32218
000032218 005__ 20170504091740.0
000032218 0247_ $$2doi$$a10.3390/s151025260
000032218 0248_ $$2sideral$$a92276
000032218 037__ $$aART-2015-92276
000032218 041__ $$aeng
000032218 100__ $$aGarcía-Romeo, D.
000032218 245__ $$aA high performance LIA-based interface for battery powered sensing devices
000032218 260__ $$c2015
000032218 5060_ $$aAccess copy available to the general public$$fUnrestricted
000032218 5203_ $$aThis paper proposes a battery-compatible electronic interface based on a general purpose lock-in amplifier (LIA) capable of recovering input signals up to the MHz range. The core is a novel ASIC fabricated in 1.8 V 0.18 µm CMOS technology, which contains a dual-phase analog lock-in amplifier consisting of carefully designed building blocks to allow configurability over a wide frequency range while maintaining low power consumption. It operates using square input signals. Hence, for battery-operated microcontrolled systems, where square reference and exciting signals can be generated by the embedded microcontroller, the system benefits from intrinsic advantages such as simplicity, versatility and reduction in power and size. Experimental results confirm the signal recovery capability with signal-to-noise power ratios down to -39 dB with relative errors below 0.07% up to 1 MHz. Furthermore, the system has been successfully tested measuring the response of a microcantilever-based resonant sensor, achieving similar results with better power-bandwidth trade-off compared to other LIAs based on commercial off-the-shelf (COTS) components and commercial LIA equipment.
000032218 536__ $$9info:eu-repo/grantAgreement/ES/MINECO-FEDER/TEC2012-30802
000032218 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000032218 590__ $$a2.033$$b2015
000032218 591__ $$aINSTRUMENTS & INSTRUMENTATION$$b12 / 56 = 0.214$$c2015$$dQ1$$eT1
000032218 591__ $$aCHEMISTRY, ANALYTICAL$$b36 / 75 = 0.48$$c2015$$dQ2$$eT2
000032218 591__ $$aELECTROCHEMISTRY$$b16 / 27 = 0.593$$c2015$$dQ3$$eT2
000032218 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000032218 700__ $$0(orcid)0000-0002-9416-7092$$aValero, M.R.
000032218 700__ $$0(orcid)0000-0002-5380-3013$$aMedrano, N.$$uUniversidad de Zaragoza
000032218 700__ $$0(orcid)0000-0003-2361-1077$$aCalvo, B.$$uUniversidad de Zaragoza
000032218 700__ $$0(orcid)0000-0003-0182-7723$$aCelma, S.$$uUniversidad de Zaragoza
000032218 7102_ $$15008$$2250$$aUniversidad de Zaragoza$$bDepartamento de Ingeniería Electrónica y Comunicaciones$$cElectrónica
000032218 773__ $$g15, 10 (2015), 25260-25276$$pSensors$$tSENSORS$$x1424-8220
000032218 8564_ $$s1315576$$uhttp://zaguan.unizar.es/record/32218/files/texto_completo.pdf$$yVersión publicada
000032218 8564_ $$s91946$$uhttp://zaguan.unizar.es/record/32218/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000032218 909CO $$ooai:zaguan.unizar.es:32218$$particulos$$pdriver
000032218 951__ $$a2017-05-04-09:15:05
000032218 980__ $$aARTICLE