Fully Integrated Impedance Spectroscopy Systems for Biochemical Sensor Array

Author

Yang, Chao ; Rairigh, Daniel ; Mason, Andrew

Author_Institution

Michigan State Univ., East Lansing

fYear

2007

fDate

27-30 Nov. 2007

Firstpage

21

Lastpage

24

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/BIOCAS.2007.4463299

Filename

4463299