A chopper stabilized pre-amplifier for biomedical signal acquisition

Grani A. Hanasusanto; Yuanjin Zheng

doi:10.1109/ISICIR.2007.4441832

A chopper stabilized pre-amplifier for biomedical signal acquisition

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

This paper presents a low-power and low-voltage pre-amplifier for biomedical signal acquisition application. The main blocks of the pre-amplifier consist of a chopper stabilized VGA, and a 4^th order filter. The amplifier serves to improve the noise figure at low frequency by extensively modulating the flicker noise to the 16 kHz chopper frequency. The filter is designed to strictly remove the modulated flicker noise and amplifier inherent offset with attenuation greater than 60 dB at the chopping frequency. Implemented in a 0.18-μm CMOS, the pre-amplifier achieves variable gain of 20, 40, and 100 V/V with an approximate noise density of 48.37 nV√Hz and consumes 270 μA current.

Original language	English (US)
Title of host publication	2007 International Symposium on Integrated Circuits, ISIC
Pages	200-203
Number of pages	4
DOIs	https://doi.org/10.1109/ISICIR.2007.4441832
State	Published - 2007
Externally published	Yes
Event	2007 International Symposium on Integrated Circuits, ISIC - Singapore, Singapore Duration: Sep 26 2007 → Sep 28 2007

Publication series

Name	2007 International Symposium on Integrated Circuits, ISIC

Conference

Conference	2007 International Symposium on Integrated Circuits, ISIC
Country/Territory	Singapore
City	Singapore
Period	9/26/07 → 9/28/07

ASJC Scopus subject areas

Hardware and Architecture
Electrical and Electronic Engineering

Online availability

10.1109/ISICIR.2007.4441832

Library availability

Discover UIUC Full Text

Cite this

Hanasusanto, GA & Zheng, Y 2007, A chopper stabilized pre-amplifier for biomedical signal acquisition. in 2007 International Symposium on Integrated Circuits, ISIC., 4441832, 2007 International Symposium on Integrated Circuits, ISIC, pp. 200-203, 2007 International Symposium on Integrated Circuits, ISIC, Singapore, Singapore, 9/26/07. https://doi.org/10.1109/ISICIR.2007.4441832

@inproceedings{e898df20b14c4567ad676b26e1d18570,

title = "A chopper stabilized pre-amplifier for biomedical signal acquisition",

abstract = "This paper presents a low-power and low-voltage pre-amplifier for biomedical signal acquisition application. The main blocks of the pre-amplifier consist of a chopper stabilized VGA, and a 4th order filter. The amplifier serves to improve the noise figure at low frequency by extensively modulating the flicker noise to the 16 kHz chopper frequency. The filter is designed to strictly remove the modulated flicker noise and amplifier inherent offset with attenuation greater than 60 dB at the chopping frequency. Implemented in a 0.18-μm CMOS, the pre-amplifier achieves variable gain of 20, 40, and 100 V/V with an approximate noise density of 48.37 nV√Hz and consumes 270 μA current.",

author = "Hanasusanto, {Grani A.} and Yuanjin Zheng",

year = "2007",

doi = "10.1109/ISICIR.2007.4441832",

language = "English (US)",

isbn = "1424407974",

series = "2007 International Symposium on Integrated Circuits, ISIC",

pages = "200--203",

booktitle = "2007 International Symposium on Integrated Circuits, ISIC",

note = "2007 International Symposium on Integrated Circuits, ISIC ; Conference date: 26-09-2007 Through 28-09-2007",

}

TY - GEN

T1 - A chopper stabilized pre-amplifier for biomedical signal acquisition

AU - Hanasusanto, Grani A.

AU - Zheng, Yuanjin

PY - 2007

Y1 - 2007

N2 - This paper presents a low-power and low-voltage pre-amplifier for biomedical signal acquisition application. The main blocks of the pre-amplifier consist of a chopper stabilized VGA, and a 4th order filter. The amplifier serves to improve the noise figure at low frequency by extensively modulating the flicker noise to the 16 kHz chopper frequency. The filter is designed to strictly remove the modulated flicker noise and amplifier inherent offset with attenuation greater than 60 dB at the chopping frequency. Implemented in a 0.18-μm CMOS, the pre-amplifier achieves variable gain of 20, 40, and 100 V/V with an approximate noise density of 48.37 nV√Hz and consumes 270 μA current.

AB - This paper presents a low-power and low-voltage pre-amplifier for biomedical signal acquisition application. The main blocks of the pre-amplifier consist of a chopper stabilized VGA, and a 4th order filter. The amplifier serves to improve the noise figure at low frequency by extensively modulating the flicker noise to the 16 kHz chopper frequency. The filter is designed to strictly remove the modulated flicker noise and amplifier inherent offset with attenuation greater than 60 dB at the chopping frequency. Implemented in a 0.18-μm CMOS, the pre-amplifier achieves variable gain of 20, 40, and 100 V/V with an approximate noise density of 48.37 nV√Hz and consumes 270 μA current.

UR - http://www.scopus.com/inward/record.url?scp=51549102010&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=51549102010&partnerID=8YFLogxK

U2 - 10.1109/ISICIR.2007.4441832

DO - 10.1109/ISICIR.2007.4441832

M3 - Conference contribution

AN - SCOPUS:51549102010

SN - 1424407974

SN - 9781424407972

T3 - 2007 International Symposium on Integrated Circuits, ISIC

SP - 200

EP - 203

BT - 2007 International Symposium on Integrated Circuits, ISIC

T2 - 2007 International Symposium on Integrated Circuits, ISIC

Y2 - 26 September 2007 through 28 September 2007

ER -

A chopper stabilized pre-amplifier for biomedical signal acquisition

Abstract

Publication series

Conference

ASJC Scopus subject areas

Online availability

Library availability

Related links

Fingerprint

Cite this