Interface with Opamp output-impedance calibration technique for a large integrated 2-D resistive sensor array

Yohsuke Shiiki; Hiroki Ishikuro

doi:10.1109/ISCAS.2019.8702594

Interface with Opamp output-impedance calibration technique for a large integrated 2-D resistive sensor array

Yohsuke Shiiki, Hiroki Ishikuro

Department of Electronics and Electrical Engineering

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

5 Citations (Scopus)

Abstract

In this paper, a noble gas sensing system using a large scale integrated resistive sensor array and its interface system is introduced. Accuracy improvement, compared to conventional techniques, was achieved using our proposed opamp output impedance calibration technique. This technique makes it possible to use a low power, weak drivability opamp in the interface circuit. This paper shows the calibration method which reduces the sneak path current error from 83.6% to 1.2% through MATLAB simulations. A prototype system with 1,024 gas sensors integrated in one chip, discrete ICs of opamp, ADCs, and an FPGA was developed, and the effectiveness of the system is demonstrated.

Original language	English
Title of host publication	2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781728103976
DOIs	https://doi.org/10.1109/ISCAS.2019.8702594
Publication status	Published - 2019
Event	2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019 - Sapporo, Japan Duration: 2019 May 26 → 2019 May 29

Publication series

Name	Proceedings - IEEE International Symposium on Circuits and Systems
Volume	2019-May
ISSN (Print)	0271-4310

Conference

Conference	2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019
Country/Territory	Japan
City	Sapporo
Period	19/5/26 → 19/5/29

Keywords

Driving power
Gas sensing
Opamp
Resistive sensor array
Software calibration

ASJC Scopus subject areas

Electrical and Electronic Engineering

Access to Document

10.1109/ISCAS.2019.8702594

Cite this

Shiiki, Y., & Ishikuro, H. (2019). Interface with Opamp output-impedance calibration technique for a large integrated 2-D resistive sensor array. In 2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019 - Proceedings [8702594] (Proceedings - IEEE International Symposium on Circuits and Systems; Vol. 2019-May). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISCAS.2019.8702594

Interface with Opamp output-impedance calibration technique for a large integrated 2-D resistive sensor array. / Shiiki, Yohsuke; Ishikuro, Hiroki.
2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2019. 8702594 (Proceedings - IEEE International Symposium on Circuits and Systems; Vol. 2019-May).

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

Shiiki, Y & Ishikuro, H 2019, Interface with Opamp output-impedance calibration technique for a large integrated 2-D resistive sensor array. in 2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019 - Proceedings., 8702594, Proceedings - IEEE International Symposium on Circuits and Systems, vol. 2019-May, Institute of Electrical and Electronics Engineers Inc., 2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019, Sapporo, Japan, 19/5/26. https://doi.org/10.1109/ISCAS.2019.8702594

Shiiki Y, Ishikuro H. Interface with Opamp output-impedance calibration technique for a large integrated 2-D resistive sensor array. In 2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2019. 8702594. (Proceedings - IEEE International Symposium on Circuits and Systems). doi: 10.1109/ISCAS.2019.8702594

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Interface with Opamp output-impedance calibration technique for a large integrated 2-D resistive sensor array

Abstract

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Keywords

ASJC Scopus subject areas

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