Low-Power CMOS bandpass filter for application of cochlear prosthesis

Hsing Chien Chu, Yu Hua Huang, Chung Chih Hung

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A CMOS Gm-C filter based on operational trans-conductance amplifiers (OTAs) with low power and tuning ability for biomedical applications is proposed in this paper. The OTA works in the weak inversion region. The transconductance can be tuned by changing the bias current. A fourth-order Butterworth LC ladder Gm-C bandpass filter is implemented by 0.18 μm CMOS process. The supply voltage of the OTA-C filter can be as low as 0.65 V for minimum power dissipation. The power consumption is 61 nW for a sinusoidal input signal of 300 Hz 100 mVPP and 1 V supply voltage and total harmonic distortion is -50.23 dB. The active area is 0.04 mm2.

Original languageEnglish
Title of host publication2016 IEEE 59th International Midwest Symposium on Circuits and Systems, MWSCAS 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509009169
DOIs
StatePublished - 2 Jul 2016
Event59th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2016 - Abu Dhabi, United Arab Emirates
Duration: 16 Oct 201619 Oct 2016

Publication series

NameMidwest Symposium on Circuits and Systems
Volume0
ISSN (Print)1548-3746

Conference

Conference59th IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2016
CountryUnited Arab Emirates
CityAbu Dhabi
Period16/10/1619/10/16

Fingerprint Dive into the research topics of 'Low-Power CMOS bandpass filter for application of cochlear prosthesis'. Together they form a unique fingerprint.

Cite this