By Topic

A CMOS-Based Capacitive Sensor for Laboratory-On-Chips: Design and Experimental Results

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
$33 $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

2 Author(s)
Ebrahim Ghafar-Zadeh ; Polystim Neurotechnologies Laboratory, Dept. of Elec. Eng., École Polytechnique de Montréal, Montreal, Canada ; Mohamad Sawan

In this paper, we present a charge-based interface circuit to detect minute capacitance changes for laboratory-on-chip applications. The interface circuits and sensing electrodes are implemented in 0.18 mum CMOS process. We describe the circuit design and then put forward simulation results. We also demonstrate and discuss the measurement results of fabricated capacitive sensor. These measurements reveal a high precision detection of sensing capacitance as less as 1 fF.

Published in:

2007 IEEE International Symposium on Circuits and Systems

Date of Conference:

27-30 May 2007