NDLI: A low-offset analogue front-end IC for multi-channel physiological signal acquisition

Content Provider	IEEE Xplore Digital Library
Author	Jinyong Zhang Lei Wang Li Yu Yabei Yang Yuanting Zhang Bin Li
Copyright Year	2009
Description	Author affiliation: Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China (Lei Wang; Li Yu; Yabei Yang; Yuanting Zhang) \|\| School of Electronic and Information Engineering, South China University of Technology, Guangzhou, China (Jinyong Zhang; Bin Li)
Abstract	This paper describes a low-offset analogue front-end (AFE) integrated circuit (IC) for multi-channel physiological signal acquisitions. The mixed signal IC consists of low-offset gain programmable instrumentation amplifiers (GPIAs), high sensitive current-to-voltage converters (I-V converters), reference and an 8-bit analogue-to-digital converter (ADC). The IC offered adjustable gains that were elaborated for various physiological signal acquisitions. The conditional signals were quantized by ADC that offered an optimal solution for portable applications. The circuit was fabricated in SMIC 0.18-μm mixed-signal CMOS technology, and core area of the whole IC measured 1.36 $mm^{2}.$ The post-annotated simulations suggested that the system achieved a common-mode-rejection-ration (CMRR) of 142 dB, the adjustable gain from 31.6 dB to 76.5 dB, and the offset voltage less than 80 μV. The 8-bit ADC exhibited less than 0.8 LSB DNL and 1.1 LSB INL. Power dissipation of each channel and the ADC were approximately 348 μW and 1.65 mW under a 1.8 V single supply voltage, respectively. It is suitable for a wide range of high precision biomedical applications.
Starting Page	4473
Ending Page	4476
File Size	1260802
Page Count	4
File Format	PDF
ISBN	9781424432967
ISSN	1557170X
DOI	10.1109/IEMBS.2009.5333824
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-09-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Analog integrated circuits CMOS technology Voltage Instruments CMOS integrated circuits Area measurement Biomedical measurements Circuit simulation Gain Power dissipation
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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