Wide-range and precise tissue impedance analysis circuit with ultralow current source using gate-induced drain-leakage current

Koji Kiyoyama; Yoshiki Takezawa; Tatsuya Goto; Keita Ito; Shoma Uno; Kenji Shimokawa; Satoru Nishino; Hisashi Kino; Tetsu Tanaka

doi:10.1109/BioCAS.2016.7833792

Wide-range and precise tissue impedance analysis circuit with ultralow current source using gate-induced drain-leakage current

Koji Kiyoyama, Yoshiki Takezawa, Tatsuya Goto, Keita Ito, Shoma Uno, Kenji Shimokawa, Satoru Nishino, Hisashi Kino, Tetsu Tanaka

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

1 Citation (Scopus)

Abstract

This paper presents a bioelectrical impedance analysis circuit with ultralow-current source using gate-induced drain-leakage (GIDL) current for biomedical applications. The proposed circuit consists of an ultralow-current reference circuit, a minimal voltage measurement block, a precise current source block, and a digital control logic circuit. The reference circuit generates pico-ampere-order currents based on GIDL current of an n-channel MOSFET. Fabricated in a 0.18μm 1P6M standard CMOS technology, the impedance analysis circuit occupies 0.27mm² and can measure impedance range from 100Ω to 10MΩ. Experimental results shows that the fabricated current source using GIDL current generates a quite stable ultralow-current of 50pA, 100pA and 200pA, respectively. In addition, the proposed analysis circuit successfully measures the electrode-tissue interface impedance and tissue impedance by functional verification using monolayer and inhomogeneous agarose gel test setup phantom.

Original language	English
Title of host publication	Proceedings - 2016 IEEE Biomedical Circuits and Systems Conference, BioCAS 2016
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	304-307
Number of pages	4
ISBN (Electronic)	9781509029594
DOIs	https://doi.org/10.1109/BioCAS.2016.7833792
Publication status	Published - 2016
Event	12th IEEE Biomedical Circuits and Systems Conference, BioCAS 2016 - Shanghai, China Duration: 2016 Oct 17 → 2016 Oct 19

Publication series

Name	Proceedings - 2016 IEEE Biomedical Circuits and Systems Conference, BioCAS 2016

Conference

Conference	12th IEEE Biomedical Circuits and Systems Conference, BioCAS 2016
Country/Territory	China
City	Shanghai
Period	16/10/17 → 16/10/19

Keywords

biosignal sensing
current reference circuit
current source
electrical impedance tomography
gate-induced drain-leakage (GIDL) current
healthcare
impedance analysis

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10.1109/BioCAS.2016.7833792

Cite this

Kiyoyama, K., Takezawa, Y., Goto, T., Ito, K., Uno, S., Shimokawa, K., Nishino, S., Kino, H., & Tanaka, T. (2016). Wide-range and precise tissue impedance analysis circuit with ultralow current source using gate-induced drain-leakage current. In Proceedings - 2016 IEEE Biomedical Circuits and Systems Conference, BioCAS 2016 (pp. 304-307). Article 7833792 (Proceedings - 2016 IEEE Biomedical Circuits and Systems Conference, BioCAS 2016). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/BioCAS.2016.7833792

Kiyoyama, Koji ; Takezawa, Yoshiki ; Goto, Tatsuya et al. / Wide-range and precise tissue impedance analysis circuit with ultralow current source using gate-induced drain-leakage current. Proceedings - 2016 IEEE Biomedical Circuits and Systems Conference, BioCAS 2016. Institute of Electrical and Electronics Engineers Inc., 2016. pp. 304-307 (Proceedings - 2016 IEEE Biomedical Circuits and Systems Conference, BioCAS 2016).

@inproceedings{f0cbd0c268b543649376408e94be1cbc,

title = "Wide-range and precise tissue impedance analysis circuit with ultralow current source using gate-induced drain-leakage current",

abstract = "This paper presents a bioelectrical impedance analysis circuit with ultralow-current source using gate-induced drain-leakage (GIDL) current for biomedical applications. The proposed circuit consists of an ultralow-current reference circuit, a minimal voltage measurement block, a precise current source block, and a digital control logic circuit. The reference circuit generates pico-ampere-order currents based on GIDL current of an n-channel MOSFET. Fabricated in a 0.18μm 1P6M standard CMOS technology, the impedance analysis circuit occupies 0.27mm2 and can measure impedance range from 100Ω to 10MΩ. Experimental results shows that the fabricated current source using GIDL current generates a quite stable ultralow-current of 50pA, 100pA and 200pA, respectively. In addition, the proposed analysis circuit successfully measures the electrode-tissue interface impedance and tissue impedance by functional verification using monolayer and inhomogeneous agarose gel test setup phantom.",

keywords = "biosignal sensing, current reference circuit, current source, electrical impedance tomography, gate-induced drain-leakage (GIDL) current, healthcare, impedance analysis",

author = "Koji Kiyoyama and Yoshiki Takezawa and Tatsuya Goto and Keita Ito and Shoma Uno and Kenji Shimokawa and Satoru Nishino and Hisashi Kino and Tetsu Tanaka",

note = "Publisher Copyright: {\textcopyright} 2016 IEEE.; 12th IEEE Biomedical Circuits and Systems Conference, BioCAS 2016 ; Conference date: 17-10-2016 Through 19-10-2016",

year = "2016",

doi = "10.1109/BioCAS.2016.7833792",

language = "English",

series = "Proceedings - 2016 IEEE Biomedical Circuits and Systems Conference, BioCAS 2016",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

pages = "304--307",

booktitle = "Proceedings - 2016 IEEE Biomedical Circuits and Systems Conference, BioCAS 2016",

address = "United States",

}

Kiyoyama, K, Takezawa, Y, Goto, T, Ito, K, Uno, S, Shimokawa, K, Nishino, S, Kino, H & Tanaka, T 2016, Wide-range and precise tissue impedance analysis circuit with ultralow current source using gate-induced drain-leakage current. in Proceedings - 2016 IEEE Biomedical Circuits and Systems Conference, BioCAS 2016., 7833792, Proceedings - 2016 IEEE Biomedical Circuits and Systems Conference, BioCAS 2016, Institute of Electrical and Electronics Engineers Inc., pp. 304-307, 12th IEEE Biomedical Circuits and Systems Conference, BioCAS 2016, Shanghai, China, 16/10/17. https://doi.org/10.1109/BioCAS.2016.7833792

Wide-range and precise tissue impedance analysis circuit with ultralow current source using gate-induced drain-leakage current. / Kiyoyama, Koji; Takezawa, Yoshiki; Goto, Tatsuya et al.
Proceedings - 2016 IEEE Biomedical Circuits and Systems Conference, BioCAS 2016. Institute of Electrical and Electronics Engineers Inc., 2016. p. 304-307 7833792 (Proceedings - 2016 IEEE Biomedical Circuits and Systems Conference, BioCAS 2016).

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

TY - GEN

T1 - Wide-range and precise tissue impedance analysis circuit with ultralow current source using gate-induced drain-leakage current

AU - Kiyoyama, Koji

AU - Takezawa, Yoshiki

AU - Goto, Tatsuya

AU - Ito, Keita

AU - Uno, Shoma

AU - Shimokawa, Kenji

AU - Nishino, Satoru

AU - Kino, Hisashi

AU - Tanaka, Tetsu

PY - 2016

Y1 - 2016

N2 - This paper presents a bioelectrical impedance analysis circuit with ultralow-current source using gate-induced drain-leakage (GIDL) current for biomedical applications. The proposed circuit consists of an ultralow-current reference circuit, a minimal voltage measurement block, a precise current source block, and a digital control logic circuit. The reference circuit generates pico-ampere-order currents based on GIDL current of an n-channel MOSFET. Fabricated in a 0.18μm 1P6M standard CMOS technology, the impedance analysis circuit occupies 0.27mm2 and can measure impedance range from 100Ω to 10MΩ. Experimental results shows that the fabricated current source using GIDL current generates a quite stable ultralow-current of 50pA, 100pA and 200pA, respectively. In addition, the proposed analysis circuit successfully measures the electrode-tissue interface impedance and tissue impedance by functional verification using monolayer and inhomogeneous agarose gel test setup phantom.

AB - This paper presents a bioelectrical impedance analysis circuit with ultralow-current source using gate-induced drain-leakage (GIDL) current for biomedical applications. The proposed circuit consists of an ultralow-current reference circuit, a minimal voltage measurement block, a precise current source block, and a digital control logic circuit. The reference circuit generates pico-ampere-order currents based on GIDL current of an n-channel MOSFET. Fabricated in a 0.18μm 1P6M standard CMOS technology, the impedance analysis circuit occupies 0.27mm2 and can measure impedance range from 100Ω to 10MΩ. Experimental results shows that the fabricated current source using GIDL current generates a quite stable ultralow-current of 50pA, 100pA and 200pA, respectively. In addition, the proposed analysis circuit successfully measures the electrode-tissue interface impedance and tissue impedance by functional verification using monolayer and inhomogeneous agarose gel test setup phantom.

KW - biosignal sensing

KW - current reference circuit

KW - current source

KW - electrical impedance tomography

KW - gate-induced drain-leakage (GIDL) current

KW - healthcare

KW - impedance analysis

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U2 - 10.1109/BioCAS.2016.7833792

DO - 10.1109/BioCAS.2016.7833792

M3 - Conference contribution

AN - SCOPUS:85014177495

T3 - Proceedings - 2016 IEEE Biomedical Circuits and Systems Conference, BioCAS 2016

SP - 304

EP - 307

BT - Proceedings - 2016 IEEE Biomedical Circuits and Systems Conference, BioCAS 2016

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 12th IEEE Biomedical Circuits and Systems Conference, BioCAS 2016

Y2 - 17 October 2016 through 19 October 2016

ER -

Kiyoyama K, Takezawa Y, Goto T, Ito K, Uno S, Shimokawa K et al. Wide-range and precise tissue impedance analysis circuit with ultralow current source using gate-induced drain-leakage current. In Proceedings - 2016 IEEE Biomedical Circuits and Systems Conference, BioCAS 2016. Institute of Electrical and Electronics Engineers Inc. 2016. p. 304-307. 7833792. (Proceedings - 2016 IEEE Biomedical Circuits and Systems Conference, BioCAS 2016). doi: 10.1109/BioCAS.2016.7833792

Wide-range and precise tissue impedance analysis circuit with ultralow current source using gate-induced drain-leakage current

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