A 430nW 64nV/square root Hertz current-reuse telescopic amplifier for neural recording applications

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Abstract

This paper presents a low-power low-noise amplifier for neural recording applications. A single-stage current-reuse telescopic topology is proposed to achieve high DC gain and improve the noise efficiency factor (NEF) while allowing the amplifier to be scaled for high bandwidth sensing applications and/or to achieve lower thermal noise floor. The design is fabricated in a standard 0.18µm CMOS process and occupies an active area of 0.16mm2. Experimental measurements show a 430nW power consumption from a 1.2V supply, a thermal noise floor of 63.8nV/vHz and a corresponding NEF of 1.5.
Original languageEnglish
Title of host publicationProceedings of the 2013 IEEE-BIOCAS Biomedical Circuits and Systems Conference, BIOCAS 2013, 31 October - 2 November 2013, Rotterdam, The Netherlands
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
Pages322-325
DOIs
Publication statusPublished - 2013
Eventconference; IEEE BIOCAS; 2013-10-31; 2013-11-02 -
Duration: 31 Oct 20132 Nov 2013

Conference

Conferenceconference; IEEE BIOCAS; 2013-10-31; 2013-11-02
Period31/10/132/11/13
OtherIEEE BIOCAS

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  • Cite this

    Song, S., Rooijakkers, M. J., Harpe, P. J. A., Rabotti, C., Mischi, M., Roermund, van, A. H. M., & Cantatore, E. (2013). A 430nW 64nV/square root Hertz current-reuse telescopic amplifier for neural recording applications. In Proceedings of the 2013 IEEE-BIOCAS Biomedical Circuits and Systems Conference, BIOCAS 2013, 31 October - 2 November 2013, Rotterdam, The Netherlands (pp. 322-325). Piscataway: Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/BioCAS.2013.6679704