A 110dB-CMRR 100dB-PSRR multi-channel neural-recording amplifier system using differentially regulated rejection ratio enhancement in 0.18μm CMOS

Sehwan Lee; Arup K. George; Taeju Lee; Jun Uk Chu; Sungmin Han; Ji Hoon Kim; Minkyu Je; Junghyup Lee

doi:10.1109/ISSCC.2018.8310389

A 110dB-CMRR 100dB-PSRR multi-channel neural-recording amplifier system using differentially regulated rejection ratio enhancement in 0.18μm CMOS

Sehwan Lee
, Arup K. George
, Taeju Lee
, Jun Uk Chu
, Sungmin Han
, Ji Hoon Kim
, Minkyu Je
, Junghyup Lee

Department of Electrical Engineering and Computer Science

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

31 Scopus citations

Abstract

Multi-channel neural-recording amplifier systems have evolved into the method of choice for analyzing neurophysiological behavior, and are leading to a deeper understanding of the human brain [1-4]. Such systems operate from a noisy supply and ground, especially when they are powered wirelessly. As shown in Fig. 29.7.1, the amplifiers ought to be low-noise, low-power, and resilient against environmental noise and interferences that are capacitively coupled from the power lines (220V/60Hz). Specifications-wise, these requirements translate into high CMRR, TCMRR, and PSRR. TCMRR (total CMRR) is a more realistic specification than CMRR as it includes the effect of the impedances of both electrodes (Z_e) and the amplifier input (Z_Cin) as well. In fact, the TCMRR should be >70dB for reliable detection of a 5μV_rms neural signal [1].

Original language	English
Title of host publication	2018 IEEE International Solid-State Circuits Conference, ISSCC 2018
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	472-474
Number of pages	3
ISBN (Electronic)	9781509049394
DOIs	https://doi.org/10.1109/ISSCC.2018.8310389
State	Published - 8 Mar 2018
Event	65th IEEE International Solid-State Circuits Conference, ISSCC 2018 - San Francisco, United States Duration: 11 Feb 2018 → 15 Feb 2018

Publication series

Name	Digest of Technical Papers - IEEE International Solid-State Circuits Conference
Volume	61
ISSN (Print)	0193-6530

Conference

Conference	65th IEEE International Solid-State Circuits Conference, ISSCC 2018
Country/Territory	United States
City	San Francisco
Period	11/02/18 → 15/02/18

Bibliographical note

Publisher Copyright:
© 2018 IEEE.

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10.1109/ISSCC.2018.8310389

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Lee, S., George, A. K., Lee, T., Chu, J. U., Han, S., Kim, J. H., Je, M., & Lee, J. (2018). A 110dB-CMRR 100dB-PSRR multi-channel neural-recording amplifier system using differentially regulated rejection ratio enhancement in 0.18μm CMOS. In 2018 IEEE International Solid-State Circuits Conference, ISSCC 2018 (pp. 472-474). (Digest of Technical Papers - IEEE International Solid-State Circuits Conference; Vol. 61). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISSCC.2018.8310389

Lee, Sehwan ; George, Arup K. ; Lee, Taeju et al. / A 110dB-CMRR 100dB-PSRR multi-channel neural-recording amplifier system using differentially regulated rejection ratio enhancement in 0.18μm CMOS. 2018 IEEE International Solid-State Circuits Conference, ISSCC 2018. Institute of Electrical and Electronics Engineers Inc., 2018. pp. 472-474 (Digest of Technical Papers - IEEE International Solid-State Circuits Conference).

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title = "A 110dB-CMRR 100dB-PSRR multi-channel neural-recording amplifier system using differentially regulated rejection ratio enhancement in 0.18μm CMOS",

abstract = "Multi-channel neural-recording amplifier systems have evolved into the method of choice for analyzing neurophysiological behavior, and are leading to a deeper understanding of the human brain [1-4]. Such systems operate from a noisy supply and ground, especially when they are powered wirelessly. As shown in Fig. 29.7.1, the amplifiers ought to be low-noise, low-power, and resilient against environmental noise and interferences that are capacitively coupled from the power lines (220V/60Hz). Specifications-wise, these requirements translate into high CMRR, TCMRR, and PSRR. TCMRR (total CMRR) is a more realistic specification than CMRR as it includes the effect of the impedances of both electrodes (Ze) and the amplifier input (ZCin) as well. In fact, the TCMRR should be >70dB for reliable detection of a 5μVrms neural signal [1].",

author = "Sehwan Lee and George, \{Arup K.\} and Taeju Lee and Chu, \{Jun Uk\} and Sungmin Han and Kim, \{Ji Hoon\} and Minkyu Je and Junghyup Lee",

note = "Publisher Copyright: {\textcopyright} 2018 IEEE.; 65th IEEE International Solid-State Circuits Conference, ISSCC 2018 ; Conference date: 11-02-2018 Through 15-02-2018",

year = "2018",

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doi = "10.1109/ISSCC.2018.8310389",

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Lee, S, George, AK, Lee, T, Chu, JU, Han, S, Kim, JH, Je, M & Lee, J 2018, A 110dB-CMRR 100dB-PSRR multi-channel neural-recording amplifier system using differentially regulated rejection ratio enhancement in 0.18μm CMOS. in 2018 IEEE International Solid-State Circuits Conference, ISSCC 2018. Digest of Technical Papers - IEEE International Solid-State Circuits Conference, vol. 61, Institute of Electrical and Electronics Engineers Inc., pp. 472-474, 65th IEEE International Solid-State Circuits Conference, ISSCC 2018, San Francisco, United States, 11/02/18. https://doi.org/10.1109/ISSCC.2018.8310389

A 110dB-CMRR 100dB-PSRR multi-channel neural-recording amplifier system using differentially regulated rejection ratio enhancement in 0.18μm CMOS. / Lee, Sehwan; George, Arup K.; Lee, Taeju et al.
2018 IEEE International Solid-State Circuits Conference, ISSCC 2018. Institute of Electrical and Electronics Engineers Inc., 2018. p. 472-474 (Digest of Technical Papers - IEEE International Solid-State Circuits Conference; Vol. 61).

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

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AU - Han, Sungmin

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AU - Lee, Junghyup

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AB - Multi-channel neural-recording amplifier systems have evolved into the method of choice for analyzing neurophysiological behavior, and are leading to a deeper understanding of the human brain [1-4]. Such systems operate from a noisy supply and ground, especially when they are powered wirelessly. As shown in Fig. 29.7.1, the amplifiers ought to be low-noise, low-power, and resilient against environmental noise and interferences that are capacitively coupled from the power lines (220V/60Hz). Specifications-wise, these requirements translate into high CMRR, TCMRR, and PSRR. TCMRR (total CMRR) is a more realistic specification than CMRR as it includes the effect of the impedances of both electrodes (Ze) and the amplifier input (ZCin) as well. In fact, the TCMRR should be >70dB for reliable detection of a 5μVrms neural signal [1].

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Lee S, George AK, Lee T, Chu JU, Han S, Kim JH et al. A 110dB-CMRR 100dB-PSRR multi-channel neural-recording amplifier system using differentially regulated rejection ratio enhancement in 0.18μm CMOS. In 2018 IEEE International Solid-State Circuits Conference, ISSCC 2018. Institute of Electrical and Electronics Engineers Inc. 2018. p. 472-474. (Digest of Technical Papers - IEEE International Solid-State Circuits Conference). doi: 10.1109/ISSCC.2018.8310389

A 110dB-CMRR 100dB-PSRR multi-channel neural-recording amplifier system using differentially regulated rejection ratio enhancement in 0.18μm CMOS

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