Title :
Fully Integrated Impedance Spectroscopy Systems for Biochemical Sensor Array
Author :
Yang, Chao ; Rairigh, Daniel ; Mason, Andrew
Author_Institution :
Michigan State Univ., East Lansing
Abstract :
With rapid progress in the miniaturization of biosensors, array microsystems utilizing impedance spectroscopy (IS) are of emerging interest. Focused on the electronics portion of such IS microsystems, this paper analyzes FFT-based and frequency response analyzer (FRA)-based approaches and compares them for hardware efficiency in array applications. For the chosen FRA-based approach, two possible systems are described and their circuit-level realizations are presented, one targeting high accuracy applications and the other prioritizing rapid interrogation.
Keywords :
bioMEMS; biochemistry; biomedical electronics; biosensors; electrochemical impedance spectroscopy; electrochemical sensors; fast Fourier transforms; frequency response; lab-on-a-chip; sensor arrays; spectrochemical analysis; FFT; biochemical sensor array; frequency response analyzer; integrated impedance spectroscopy; microsystem; Biochemistry; Biosensors; Circuits; DNA; Electrochemical impedance spectroscopy; Electrodes; Frequency response; Sensor arrays; Signal generators; Transducers; analog/mixed signal integrated circuit; biosensor array; impedance spectroscopy; microsystem;
Conference_Titel :
Biomedical Circuits and Systems Conference, 2007. BIOCAS 2007. IEEE
Conference_Location :
Montreal, Que.
Print_ISBN :
978-1-4244-1524-3
Electronic_ISBN :
978-1-4244-1525-0
DOI :
10.1109/BIOCAS.2007.4463299
