A Tunable Band-Pass Filter for Multi Bio-Signal Detection

Title
A Tunable Band-Pass Filter for Multi Bio-Signal Detection
Authors
정병호임신일우덕하
Keywords
band-pass filter; high cut-off frequency; sub-threshold design; gm; bio-signal detection
Issue Date
2011-03
Publisher
전기전자학회 논문지
Citation
VOL 15, NO 1, 57-63
Abstract
This paper presents a tunable band pass filter (BPF) for multi bio-signal detection. The bandwidth can be controlled by the bias current of transconductance (gm), while conventional BPF exploited switchable capacitor array for band selection. With this design technique, the die area of proposed BPF reduced to at least one tenth the area of conventional design. The simulation results show the high cut-off frequency tuning range of from 100Hz to 1Khz. The circuit was implemented with a 0.18um CMOS standard technology. Total current consumption is 1uA at the supply voltage of 1V with sub-threshold design technique.
URI
http://pubs.kist.re.kr/handle/201004/39776
ISSN
1226-7244
Appears in Collections:
KIST Publication > Article
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