DocumentCode :
601055
Title :
A low-power, offset-corrected potentiostat for chemical imaging applications
Author :
Kern, T. ; Chen, T.
Author_Institution :
Dept. of Electr. & Comput. Eng., Colorado State Univ., Fort Collins, CO, USA
fYear :
2013
fDate :
Feb. 27 2013-March 1 2013
Firstpage :
1
Lastpage :
4
Abstract :
Traditional potentiostat designs often focus on high accuracy using high precision discrete components and often involve a limited number of discrete electrodes. Modern medicine and biological research require the use of high-density biosensor arrays to gain a better understanding of cellular communication in biological systems. Such applications involves hundreds or thousands of electrodes on a single silicon substrate. Each set of electrodes is supported by an independent group of circuits to allow real-time, multichannel detection and characterization of bio-signals. This paper presents a low power, offset-calibrated potentiostat design in a commercial 0.18um CMOS process for use in single-chip biosensor array applications to generate high resolution chemical images. The design uses a reusable on-chip calibration circuit to reduce amplifier offset error, with 40.3 μW of power consumption and a total silicon area of .02 mm2.
Keywords :
CMOS analogue integrated circuits; biosensors; elemental semiconductors; sensor arrays; silicon; CMOS process; amplifier offset error reduction; bio-signal characterization; biological research; biological systems; cellular communication; discrete electrodes; high-density biosensor arrays; high-precision discrete components; high-resolution chemical images; low-power offset-corrected potentiostat design; medicine research; on-chip calibration circuit; power 40.3 muW; power consumption; real-time multichannel detection; silicon substrate; single-chip biosensor array applications; size 0.18 mum; Biosensors; Calibration; Capacitors; Chemicals; Electric potential; Electrodes; Power demand;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Circuits and Systems (LASCAS), 2013 IEEE Fourth Latin American Symposium on
Conference_Location :
Cusco
Print_ISBN :
978-1-4673-4897-3
Type :
conf
DOI :
10.1109/LASCAS.2013.6519041
Filename :
6519041
Link To Document :
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