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

Yohsuke Shiiki, Hiroki Ishikuro

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (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 languageEnglish
Title of host publication2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728103976
DOIs
Publication statusPublished - 2019 Jan 1
Event2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019 - Sapporo, Japan
Duration: 2019 May 262019 May 29

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
Volume2019-May
ISSN (Print)0271-4310

Conference

Conference2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019
CountryJapan
CitySapporo
Period19/5/2619/5/29

Fingerprint

Operational amplifiers
Sensor arrays
Calibration
Inert gases
Chemical sensors
MATLAB
Field programmable gate arrays (FPGA)
Networks (circuits)

Keywords

  • Driving power
  • Gas sensing
  • Opamp
  • Resistive sensor array
  • Software calibration

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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