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Conference Paper: A 1.8 µW Area-efficient Bio-potential Amplifier with 90 dB DC Offset Suppression
Title | A 1.8 µW Area-efficient Bio-potential Amplifier with 90 dB DC Offset Suppression |
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Authors | |
Keywords | bio-amplifier bio-potential recording biosensor DC offset DDA |
Issue Date | 2014 |
Publisher | I E E E. |
Citation | The IEEE 57th International Midwest Symposium on Circuits and Systems (MWSCAS), College Station, Texas, USA, 3-6 August 2014. In Midwest Symposium on Circuits and Systems Conference Proceedings, 2014, p. 286-289 How to Cite? |
Abstract | An area-efficient and low-power low-noise amplifier with adjustable parameters for bio-potential recording applications is presented. This amplifier replaces traditional analog filters using large AC coupling capacitor with the proposed DC offset suppression block based on Differential Difference Amplifier (DDA) structure, which allows the system to obtain good high pass characterization without using any area-consuming capacitors or resistors. It features configurable gain and bandwidth, which is suitable for various bio-potential applications and massive integration in biomedical devices. More than 90 dB DC offset suppression ratio is achieved in rejecting large DC offset and baseline drift that exist at the skin-electrode interface. The proposed bio-amplifier, designed in a 0.18 µm CMOS process and occupies only 0.027 mm2 silicon area on chip, provides adjustable mid-band gain of 35.5/41.5/47.6/53.6 dB, tunable bandwidth from 0.01 Hz to 10 kHz. The back-annotated simulation results demonstrated the input-referred noise of 5.4 µVrms over 0.01 Hz–10 kHz and the total power dissipation consumed as low as 1.8 µW at 1.2 V power supply. |
Persistent Identifier | http://hdl.handle.net/10722/204173 |
ISBN | |
ISSN | 2023 SCImago Journal Rankings: 0.268 |
DC Field | Value | Language |
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dc.contributor.author | Zhang, J | en_US |
dc.contributor.author | Chan, SC | en_US |
dc.contributor.author | Wang, L | en_US |
dc.date.accessioned | 2014-09-19T20:07:57Z | - |
dc.date.available | 2014-09-19T20:07:57Z | - |
dc.date.issued | 2014 | en_US |
dc.identifier.citation | The IEEE 57th International Midwest Symposium on Circuits and Systems (MWSCAS), College Station, Texas, USA, 3-6 August 2014. In Midwest Symposium on Circuits and Systems Conference Proceedings, 2014, p. 286-289 | en_US |
dc.identifier.isbn | 9781479941346 | - |
dc.identifier.issn | 1548-3746 | - |
dc.identifier.uri | http://hdl.handle.net/10722/204173 | - |
dc.description.abstract | An area-efficient and low-power low-noise amplifier with adjustable parameters for bio-potential recording applications is presented. This amplifier replaces traditional analog filters using large AC coupling capacitor with the proposed DC offset suppression block based on Differential Difference Amplifier (DDA) structure, which allows the system to obtain good high pass characterization without using any area-consuming capacitors or resistors. It features configurable gain and bandwidth, which is suitable for various bio-potential applications and massive integration in biomedical devices. More than 90 dB DC offset suppression ratio is achieved in rejecting large DC offset and baseline drift that exist at the skin-electrode interface. The proposed bio-amplifier, designed in a 0.18 µm CMOS process and occupies only 0.027 mm2 silicon area on chip, provides adjustable mid-band gain of 35.5/41.5/47.6/53.6 dB, tunable bandwidth from 0.01 Hz to 10 kHz. The back-annotated simulation results demonstrated the input-referred noise of 5.4 µVrms over 0.01 Hz–10 kHz and the total power dissipation consumed as low as 1.8 µW at 1.2 V power supply. | - |
dc.language | eng | en_US |
dc.publisher | I E E E. | en_US |
dc.relation.ispartof | Midwest Symposium on Circuits and Systems Conference Proceedings | en_US |
dc.subject | bio-amplifier | - |
dc.subject | bio-potential recording | - |
dc.subject | biosensor | - |
dc.subject | DC offset | - |
dc.subject | DDA | - |
dc.title | A 1.8 µW Area-efficient Bio-potential Amplifier with 90 dB DC Offset Suppression | en_US |
dc.type | Conference_Paper | en_US |
dc.identifier.email | Chan, SC: ascchan@hkucc.hku.hk | en_US |
dc.identifier.authority | Chan, SC=rp00094 | en_US |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1109/MWSCAS.2014.6908408 | - |
dc.identifier.scopus | eid_2-s2.0-84908481346 | - |
dc.identifier.hkuros | 240661 | en_US |
dc.identifier.spage | 286 | - |
dc.identifier.epage | 289 | - |
dc.publisher.place | United States | en_US |
dc.identifier.issnl | 1548-3746 | - |