A Low Power CMOS Magnetic Field Sensor consisting of a MAGFET and a Pulse Width Modulated Readout Circuit

Shuk-Fun Lai; Wing-Kong Ng; Wing-Shan Tam; Chi-Wah Kok; Hei Wong

doi:10.1109/EDSSC.2017.8126576

A Low Power CMOS Magnetic Field Sensor consisting of a MAGFET and a Pulse Width Modulated Readout Circuit

Shuk-Fun Lai
, Wing-Kong Ng
, Wing-Shan Tam
, Chi-Wah Kok^*
, Hei Wong

^*Corresponding author for this work

Department of Electrical Engineering

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

3 Citations (Scopus)

Abstract

A low power magnetic field sensor fabricated with sectorial split-drain MAGFET (SSD-MAGFET) in conventional 2.5μm metal gate CMOS process with a digital readout circuit that outputs pulse width modulated (PWM) signal linearly related to the magnetic fi eld strength acting on the device is presented. Resistive trimming circuits are applied to achieve offset and sensitivity adjustment. Using 5V supply voltage, the power consumption of the system is measured to be less than 1mW, 8-bits accuracy, polarity sensing, and adjustable dynamic range.

Original language	English
Title of host publication	IEEE EDSSC 2017 - The 13th IEEE International Conference on Electron Devices and Solid-State Circuits
Publisher	IEEE
Pages	1-2
ISBN (Print)	9781538629079
DOIs	https://doi.org/10.1109/EDSSC.2017.8126576
Publication status	Published - Oct 2017
Event	13th IEEE International Conference on Electron Devices and Solid-State Circuits (IEEE EDSSC 2017) - National Tsing Hua University, Hsinchu, Taiwan, China Duration: 18 Oct 2017 → 20 Oct 2017 Conference number: 13 http://www2.ess.nthu.edu.tw/edssc2017/ https://ieeexplore.ieee.org/xpl/conhome/8118202/proceeding

Conference

Conference	13th IEEE International Conference on Electron Devices and Solid-State Circuits (IEEE EDSSC 2017)
Abbreviated title	IEEE EDSSC
Place	Taiwan, China
City	Hsinchu
Period	18/10/17 → 20/10/17
Internet address	http://www2.ess.nthu.edu.tw/edssc2017/ https://ieeexplore.ieee.org/xpl/conhome/8118202/proceeding

Research Keywords

MAGFET
Magnetic field strength sensor
PWM output
Voltage to time converter

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10.1109/EDSSC.2017.8126576

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@inproceedings{fea5956e81d44b7eaf809c32b0fbbfec,

title = "A Low Power CMOS Magnetic Field Sensor consisting of a MAGFET and a Pulse Width Modulated Readout Circuit",

abstract = "A low power magnetic field sensor fabricated with sectorial split-drain MAGFET (SSD-MAGFET) in conventional 2.5μm metal gate CMOS process with a digital readout circuit that outputs pulse width modulated (PWM) signal linearly related to the magnetic fi eld strength acting on the device is presented. Resistive trimming circuits are applied to achieve offset and sensitivity adjustment. Using 5V supply voltage, the power consumption of the system is measured to be less than 1mW, 8-bits accuracy, polarity sensing, and adjustable dynamic range.",

keywords = "MAGFET, Magnetic field strength sensor, PWM output, Voltage to time converter",

author = "Shuk-Fun Lai and Wing-Kong Ng and Wing-Shan Tam and Chi-Wah Kok and Hei Wong",

year = "2017",

month = oct,

doi = "10.1109/EDSSC.2017.8126576",

language = "English",

isbn = "9781538629079",

pages = "1--2",

booktitle = "IEEE EDSSC 2017 - The 13th IEEE International Conference on Electron Devices and Solid-State Circuits",

publisher = "IEEE",

address = "United States",

note = "13th IEEE International Conference on Electron Devices and Solid-State Circuits (IEEE EDSSC 2017), IEEE EDSSC ; Conference date: 18-10-2017 Through 20-10-2017",

url = "http://www2.ess.nthu.edu.tw/edssc2017/, https://ieeexplore.ieee.org/xpl/conhome/8118202/proceeding",

}

Lai, S-F, Ng, W-K, Tam, W-S, Kok, C-W & Wong, H 2017, A Low Power CMOS Magnetic Field Sensor consisting of a MAGFET and a Pulse Width Modulated Readout Circuit. in IEEE EDSSC 2017 - The 13th IEEE International Conference on Electron Devices and Solid-State Circuits. IEEE, pp. 1-2, 13th IEEE International Conference on Electron Devices and Solid-State Circuits (IEEE EDSSC 2017), Hsinchu, Taiwan, China, 18/10/17. https://doi.org/10.1109/EDSSC.2017.8126576

A Low Power CMOS Magnetic Field Sensor consisting of a MAGFET and a Pulse Width Modulated Readout Circuit. / Lai, Shuk-Fun; Ng, Wing-Kong; Tam, Wing-Shan et al.
IEEE EDSSC 2017 - The 13th IEEE International Conference on Electron Devices and Solid-State Circuits. IEEE, 2017. p. 1-2.

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

TY - GEN

T1 - A Low Power CMOS Magnetic Field Sensor consisting of a MAGFET and a Pulse Width Modulated Readout Circuit

AU - Lai, Shuk-Fun

AU - Ng, Wing-Kong

AU - Tam, Wing-Shan

AU - Kok, Chi-Wah

AU - Wong, Hei

N1 - Conference code: 13

PY - 2017/10

Y1 - 2017/10

N2 - A low power magnetic field sensor fabricated with sectorial split-drain MAGFET (SSD-MAGFET) in conventional 2.5μm metal gate CMOS process with a digital readout circuit that outputs pulse width modulated (PWM) signal linearly related to the magnetic fi eld strength acting on the device is presented. Resistive trimming circuits are applied to achieve offset and sensitivity adjustment. Using 5V supply voltage, the power consumption of the system is measured to be less than 1mW, 8-bits accuracy, polarity sensing, and adjustable dynamic range.

AB - A low power magnetic field sensor fabricated with sectorial split-drain MAGFET (SSD-MAGFET) in conventional 2.5μm metal gate CMOS process with a digital readout circuit that outputs pulse width modulated (PWM) signal linearly related to the magnetic fi eld strength acting on the device is presented. Resistive trimming circuits are applied to achieve offset and sensitivity adjustment. Using 5V supply voltage, the power consumption of the system is measured to be less than 1mW, 8-bits accuracy, polarity sensing, and adjustable dynamic range.

KW - MAGFET

KW - Magnetic field strength sensor

KW - PWM output

KW - Voltage to time converter

UR - https://www.scopus.com/pages/publications/85043597171

UR - https://www.scopus.com/pages/publications/85043597171#tab=impact

U2 - 10.1109/EDSSC.2017.8126576

DO - 10.1109/EDSSC.2017.8126576

M3 - RGC 32 - Refereed conference paper (with host publication)

SN - 9781538629079

SP - 1

EP - 2

BT - IEEE EDSSC 2017 - The 13th IEEE International Conference on Electron Devices and Solid-State Circuits

PB - IEEE

T2 - 13th IEEE International Conference on Electron Devices and Solid-State Circuits (IEEE EDSSC 2017)

Y2 - 18 October 2017 through 20 October 2017

ER -

A Low Power CMOS Magnetic Field Sensor consisting of a MAGFET and a Pulse Width Modulated Readout Circuit

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