Publication

Low Noise CMOS Micro-Fluxgate Magnetometer

Radivoje Popovic, Pavel Kejik
2003
Conference Papers

Abstract

We present a new two-axis fluxgate magnetometer fully integrated in CMOS technology. The magnetometer exhibits excellent sensitivity of 2700 V/T and the magnetic equivalent noise spectral density of 6nT/√Hz at 1 Hz. The total power consumption is as low as 35 m W from the single 5 V power supply. The low noise characteristic is obtained using the combination of good magnetic . material properties and electronic post-modulation technique to reduce the noise coming from CMOS electronic part.

Official source

https://infoscience.epfl.ch/entities/publication/7401f1c3-1579-4088-9acd-060dde74bdf4

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Radivoje Popovic, Pavel Kejik
2003
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/7401f1c3-1579-4088-9acd-060dde74bdf4

About this result

Related concepts (32)

Noise reduction

Noise reduction is the process of removing noise from a signal. Noise reduction techniques exist for audio and images. Noise reduction algorithms may distort the signal to some degree. Noise rejection is the ability of a circuit to isolate an undesired signal component from the desired signal component, as with common-mode rejection ratio. All signal processing devices, both analog and digital, have traits that make them susceptible to noise.

Pink noise

Pink noise, noise or fractal noise is a signal or process with a frequency spectrum such that the power spectral density (power per frequency interval) is inversely proportional to the frequency of the signal. In pink noise, each octave interval (halving or doubling in frequency) carries an equal amount of noise energy. Pink noise sounds like a waterfall. It is often used to tune loudspeaker systems in professional audio. Pink noise is one of the most commonly observed signals in biological systems.

CMOS

Complementary metal–oxide–semiconductor (CMOS, pronounced "sea-moss", siːmɑːs, -ɒs) is a type of metal–oxide–semiconductor field-effect transistor (MOSFET) fabrication process that uses complementary and symmetrical pairs of p-type and n-type MOSFETs for logic functions. CMOS technology is used for constructing integrated circuit (IC) chips, including microprocessors, microcontrollers, memory chips (including CMOS BIOS), and other digital logic circuits.

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Low Noise CMOS Micro-Fluxgate Magnetometer

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