%0 Conference Paper
%A Yohannes, I.
%A Assaad, M.M.
%A Meriaudeau, F.
%D 2012
%F scholars:2607
%K 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, Color; Logic circuits; Optical sensors; Sustainable development; Transducers, Integrated circuit manufacture
%P 199-203
%R 10.1109/ICCircuitsAndSystems.2012.6408272
%T A low power interface circuit design for a CMOS based smart optical sensor
%U https://khub.utp.edu.my/scholars/2607/
%X 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.
%Z 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