Standard CMOS Hall-Sensor with Integrated Interface Electronics for a 3D Compass Sensor

JC van der Meer, KAA Makinwa, JH Huijsing, FR Riedijk

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientific

7 Citations (Scopus)

Abstract

A smart compass sensor has been developed in standard CMOS with integrated signal conditioning and interface electronics. The compass sensors measure the horizontal components of the earth's magnetic field, which has a typical field strength of 25¿T. The sensor's offset is 4¿T (3¿), and its offset stability is less than 0.25¿T/week. Due to this low offset stability, the detection level is only limited by system noise. By using an improved chopper amplifier in the front-end the system noise has been reduced to 0.12¿T/¿Hz. In order to measure all three components of the earth's magnetic field, each sensor is packaged in a custom SFN8 package, which enables the necessary orthogonal alignment of three sensors. The presented 3D sensor module consists of three daisy-chained sensors, and illustrates the ease-of-use of a smart sensor with integrated bus (SPI/¿wire) interface. Apart from a single decoupling capacitor, no external components are necessary to read out the sensor signals, which reduces system costs.
Original languageUndefined/Unknown
Title of host publicationStandard CMOS Hall-Sensor with Integrated Interface Electronics for a 3D Compass Sensor
PublisherIEEE Society
Pages1-4
Number of pages4
ISBN (Print)978-1-4244-1262-4
DOIs
Publication statusPublished - 2007
EventIEEE Sensors 2007: 6th IEEE Conference on Sensors - Atlanta, GA, United States
Duration: 28 Oct 200731 Oct 2007

Publication series

Name
PublisherIEEE

Conference

ConferenceIEEE Sensors 2007
CountryUnited States
CityAtlanta, GA
Period28/10/0731/10/07

Keywords

  • Elektrotechniek
  • Techniek
  • conference contrib. refereed
  • Conf.proc. > 3 pag

Cite this

van der Meer, JC., Makinwa, KAA., Huijsing, JH., & Riedijk, FR. (2007). Standard CMOS Hall-Sensor with Integrated Interface Electronics for a 3D Compass Sensor. In Standard CMOS Hall-Sensor with Integrated Interface Electronics for a 3D Compass Sensor (pp. 1-4). IEEE Society. https://doi.org/doi:10.1109/ICSENS.2007.4388598