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

Electronic and Electrical Engineering

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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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

Abstract

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