NDLI: Design and implementation of integrated front-end readout circuit for linear-array biosensors with chopper-stabilized operational amplifier

Content Provider	IEEE Xplore Digital Library
Author	Tai-Ping Sun Hsiu-Li Shieh Yi-Ching Tang Chun-Lang Tsai Hsin-Wei Huang Wei-Hao Liu Chia-Ming Liu Jen-Wei Chang Jia-Hao Li Ching, C.T.-S.
Copyright Year	2010
Description	Author affiliation: Graduate Institute of Biomedicine and Biomedical Technology, National Chi Nan University, Taiwan (Tai-Ping Sun; Yi-Ching Tang; Chun-Lang Tsai; Hsin-Wei Huang; Wei-Hao Liu; Chia-Ming Liu; Jen-Wei Chang; Jia-Hao Li; Ching, C.T.-S.) \|\| Department of Electrical Engineering, National Chi Nan University, Taiwan (Hsiu-Li Shieh)
Abstract	A readout circuit for the linear array pH sensor was designed and developed, using chopper stabilization technique. It consisted of analog multiplexer, chopper stabilized operational amplifier, level shift, filter and buffer stage. The operational amplifier used in this design was a folded cascade amplifier. Results showed that the circuit can reduce input offset, drift voltage and noise. Moreover, noise can be further reduced on a faster chopper frequency. This readout circuit can be used for measuring small signal of low frequency biosensor. The readout circuit design was implemented using TSMC 0.35um 2P4M standard CMOS process.
Starting Page	1447
Ending Page	1449
File Size	602517
Page Count	3
File Format	PDF
ISBN	9781424464951
e-ISBN	9781424464982
DOI	10.1109/BMEI.2010.5639393
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-10-16
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Operational amplifiers Electrodes Array Choppers Chopper-Stabilized Operational Amplifier Readout Circuit Arrays Biosensors Signal to noise ratio
Content Type	Text
Resource Type	Article

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