By Topic

CMOS Active Column Sensor for biodetection applications based on Surface Plasmon Resonance

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Salazar, A. ; Dept. of Electr. & Comput. Eng., Tecnol. de Monterrey, Monterrey, Mexico ; Camacho-Leon, S. ; Martinez-Chapa, S.O. ; Rossetto, O.

A CMOS Active Column Sensor (ACS) with FPN noise reduction is developed for Surface Plasmon Resonance (SPR) biosensing applications. For a SPR interface where the materials are compatible with a post-CMOS fabrication process a 68° coupling angle and a reflectance change of 75% are obtained. Furthermore, these materials provide the possibility of integration with the rest of the elements in an SPR biosensor in a single chip, including a CMOS ACS for the photodetection stage. The 20 × 20 μm2 pixel uses a n-well/p-sub photodiode, three transistors (3T) configuration, with a 61% fill factor and 5.2 μV/e- conversion gain. Non Correlated Double sampling (NCDS) and double delta sampling (DDS) schemes are implemented for noise handling, where a Monte Carlo analysis shows a reduction of the output's variance.

Published in:

Electronics, Circuits and Systems (ICECS), 2012 19th IEEE International Conference on

Date of Conference:

9-12 Dec. 2012