An integrated chip coil sensor and instrumentation amplifier for bio-magnetic signal acquisition

Vijith Vijayakumaran Nair, Jin Hwan Youn, Jun Rim Choi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

This paper presents a miniaturized magnetic sensor chip for bio-magnetic signal measurements. The sensor fabricated in 0.18 μm CMOS process embeds an inductance coil and instrumentation amplifier that provides excellent sensitivity and low reference noise level in comparison to the state of art. The integrated sensor with frequency band between 50 Hz and 5 KHz illustrates bandpass filter characteristics which attenuates the low and high frequency noise from the external environment. The signal sensitivity of the device is 3.2 fT/μV and inferred noise at 300 Hz is 29 fT/√Hz. The sensor is used for bio-magnetic signal acquisition.

Original languageEnglish
Title of host publication2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1581-1584
Number of pages4
ISBN (Electronic)9781479989553
DOIs
StatePublished - 5 Aug 2015
Event18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015 - Anchorage, United States
Duration: 21 Jun 201525 Jun 2015

Publication series

Name2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015

Conference

Conference18th International Conference on Solid-State Sensors, Actuators and Microsystems, TRANSDUCERS 2015
Country/TerritoryUnited States
CityAnchorage
Period21/06/1525/06/15

Keywords

  • Biomagnetic signals
  • Instumentation Amplifier
  • Integrated Chip
  • Sensor Coil

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