High-sensitivity photodetection sensor front-end, detecting organophosphourous compounds for food safety
2013 (English)In: Proceedings of the Custom Integrated Circuits Conference, San Jose, CA: IEEE Press, 2013Conference paper (Refereed)Text
A high-sensitivity, high dynamic range photodetection sensor front-end is presented, suitable for low-cost hand-held food safety systems. This sensor front-end for detecting organophosphorus (OP) compounds incorporates an on-chip deep N-well photodetector, pulse width modulation (PWM), and a folded reference. Designed in a 0.18um process, measurement results show an input optical power dynamic range of 71dB, a sensitivity of 3.6nW/cm2 (0.77pA), and a power consumption of 14.5uW. OP compound detection experiments demonstrate a limit of detection (LOD) of 0.16u mol/L, comparable to that of a commercial spectrophotometer.
Place, publisher, year, edition, pages
San Jose, CA: IEEE Press, 2013.
Other Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-179695DOI: 10.1109/CICC.2013.6658511ScopusID: 2-s2.0-84892634915ISBN: 9781467361460OAI: oai:DiVA.org:kth-179695DiVA: diva2:885756
35th Annual Custom Integrated Circuits Conference - The Showcase for Circuit Design in the Heart of Silicon Valley, CICC 2013; San Jose, CA; United States; 22 September 2013
QC 201512212015-12-212015-12-212016-03-23Bibliographically approved