DocumentCode
1508690
Title
Fully-integrated transimpedance amplifier for photoplethysmographic signal processing with two-stage Miller capacitance multiplier
Author
Li, Yuhua ; Wong, Alex K. Y. ; Zhang, Yuan-Tao
Author_Institution
Joint Res. Centre for Biomed. Eng., Chinese Univ. of Hong Kong, Hong Kong, China
Volume
46
Issue
11
fYear
2010
Firstpage
745
Lastpage
746
Abstract
A two-stage Miller capacitance multiplier for compensation is proposed to implement an ultra-low frequency fully-integrated transimpedance amplifier (TIA). With the proposed multiplier, the TIA achieves a passband gain of 89 dB??, a DC current rejection ranging from 0.5 to 85 ??A, and a -3 dB highpass cutoff frequency of 0.5 to 9.5 Hz. This corresponds to an improvement of six times in DC current rejection range compared with previous techniques.
Keywords
frequency multipliers; medical signal processing; operational amplifiers; plethysmography; DC current rejection; fully integrated transimpedance amplifier; highpass cutoff frequency; photoplethysmographic signal processing; two stage Miller capacitance multiplier; ultralow frequency transimpedance amplifier;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el.2010.0868
Filename
5479692
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