TY - CONF KW - Building blockes; Cmos interfaces; Color information; Digital output; Environmental sensing; Interface circuits; Light transducers; Low-power interfaces; Mixed signal; Non-intrusive; pH monitoring; Proof of concept; Voltage signals KW - Color; Logic circuits; Optical sensors; Sustainable development; Transducers KW - Integrated circuit manufacture TI - A low power interface circuit design for a CMOS based smart optical sensor Y1 - 2012/// SN - 9781467331197 N2 - In this paper, a CMOS interface circuit as part of an optical sensor-based microsystem for pH monitoring applications is presented. The proposed circuit is capable of processing a voltage signal produced by the light transducer and generating 8-bit digital outputs representing the color information (i.e. wavelength). A resolution of 8 different colors has been achieved as a proof of concept and can easily be extended to a higher number of colors without a major modification in the architecture. The proposed interface circuit is a mixed-signal solution that consists of analog as well as digital building blocks along with a light transducer. It can be used as a portable and non-intrusive optical sensor for biomedical and environmental sensing applications. © 2012 IEEE. CY - Kuala Lumpur EP - 203 ID - scholars2607 UR - https://www.scopus.com/inward/record.uri?eid=2-s2.0-84873947517&doi=10.1109%2fICCircuitsAndSystems.2012.6408272&partnerID=40&md5=c1ca6a81dd4c38779e791fc7a1166122 A1 - Yohannes, I. A1 - Assaad, M.M. A1 - Meriaudeau, F. N1 - cited By 0; Conference of 2012 IEEE International Conference on Circuits and Systems: ""Advanced Circuits and Systems for Sustainability"", ICCAS 2012 ; Conference Date: 3 October 2012 Through 4 October 2012; Conference Code:95594 AV - none SP - 199 ER -