A 220nW neural amplifier for multi-channel neural recording systems

Jungsuk Kim; Sung Chae Moo; Wentai Liu

doi:10.1109/ISCAS.2009.5117991

A 220nW neural amplifier for multi-channel neural recording systems

Jungsuk Kim, Sung Chae Moo, Wentai Liu

Department of Biomedical Engineering

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

21 Citations (Scopus)

Abstract

This paper presents a low-power neural amplifier for multi-channel neural recording systems. To achieve low power consumption and small die area, the single-branch amplifier, based on CMOS inverter, is employed along with a capacitive feedback loop. This amplifier has a gain of 28.9dB and operates from ±0.9V. The low-frequency cutoff is able to be varied from less than 100 Hz by adjusting the tuning voltage and the high-frequency cutoff is fixed at 11.2 KHz. The input-referred noise of this amplifier is 14.5μV_rms and it consumes a power of 220nW. This low-power neural amplifier is fabricated in 0.35μm CMOS Process with active die areas of 200μx100μm.

Original language	English
Title of host publication	2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009
Pages	1257-1260
Number of pages	4
DOIs	https://doi.org/10.1109/ISCAS.2009.5117991
Publication status	Published - 2009
Event	2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009 - Taipei, Taiwan Duration: 2009 May 24 → 2009 May 27

Publication series

Name	Proceedings - IEEE International Symposium on Circuits and Systems
ISSN (Print)	0271-4310

Other

Other	2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009
Country/Territory	Taiwan
City	Taipei
Period	09-05-24 → 09-05-27

All Science Journal Classification (ASJC) codes

Electrical and Electronic Engineering

Access to Document

10.1109/ISCAS.2009.5117991

Cite this

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title = "A 220nW neural amplifier for multi-channel neural recording systems",

abstract = "This paper presents a low-power neural amplifier for multi-channel neural recording systems. To achieve low power consumption and small die area, the single-branch amplifier, based on CMOS inverter, is employed along with a capacitive feedback loop. This amplifier has a gain of 28.9dB and operates from ±0.9V. The low-frequency cutoff is able to be varied from less than 100 Hz by adjusting the tuning voltage and the high-frequency cutoff is fixed at 11.2 KHz. The input-referred noise of this amplifier is 14.5μVrms and it consumes a power of 220nW. This low-power neural amplifier is fabricated in 0.35μm CMOS Process with active die areas of 200μx100μm.",

author = "Jungsuk Kim and Moo, {Sung Chae} and Wentai Liu",

year = "2009",

doi = "10.1109/ISCAS.2009.5117991",

language = "English",

isbn = "9781424438280",

series = "Proceedings - IEEE International Symposium on Circuits and Systems",

pages = "1257--1260",

booktitle = "2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009",

note = "2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009 ; Conference date: 24-05-2009 Through 27-05-2009",

}

Kim, J, Moo, SC & Liu, W 2009, A 220nW neural amplifier for multi-channel neural recording systems. in 2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009., 5117991, Proceedings - IEEE International Symposium on Circuits and Systems, pp. 1257-1260, 2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009, Taipei, Taiwan, 09-05-24. https://doi.org/10.1109/ISCAS.2009.5117991

A 220nW neural amplifier for multi-channel neural recording systems. / Kim, Jungsuk; Moo, Sung Chae; Liu, Wentai.
2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009. 2009. p. 1257-1260 5117991 (Proceedings - IEEE International Symposium on Circuits and Systems).

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

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N2 - This paper presents a low-power neural amplifier for multi-channel neural recording systems. To achieve low power consumption and small die area, the single-branch amplifier, based on CMOS inverter, is employed along with a capacitive feedback loop. This amplifier has a gain of 28.9dB and operates from ±0.9V. The low-frequency cutoff is able to be varied from less than 100 Hz by adjusting the tuning voltage and the high-frequency cutoff is fixed at 11.2 KHz. The input-referred noise of this amplifier is 14.5μVrms and it consumes a power of 220nW. This low-power neural amplifier is fabricated in 0.35μm CMOS Process with active die areas of 200μx100μm.

AB - This paper presents a low-power neural amplifier for multi-channel neural recording systems. To achieve low power consumption and small die area, the single-branch amplifier, based on CMOS inverter, is employed along with a capacitive feedback loop. This amplifier has a gain of 28.9dB and operates from ±0.9V. The low-frequency cutoff is able to be varied from less than 100 Hz by adjusting the tuning voltage and the high-frequency cutoff is fixed at 11.2 KHz. The input-referred noise of this amplifier is 14.5μVrms and it consumes a power of 220nW. This low-power neural amplifier is fabricated in 0.35μm CMOS Process with active die areas of 200μx100μm.

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A 220nW neural amplifier for multi-channel neural recording systems

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