Ultra-low noise, bi-polar, programmable current sources

M. S. Mrozowski; I. C. Chalmers; S. J. Ingleby; P. F. Griffin; E. Riis

doi:10.1063/5.0114760

Ultra-low noise, bi-polar, programmable current sources

M. S. Mrozowski, I. C. Chalmers, S. J. Ingleby, P. F. Griffin, E. Riis

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Abstract

We present the design process and implementation of fully open-source, ultra-low noise programmable current source systems in two configurations. Although originally designed as coil drivers for Optically Pumped Magnetometers (OPMs), the device specifications make them potentially useful in a range of applications. The devices feature a bi-directional current range of ±10 and ±250 mA on three independent channels with 16-bit resolution. Both devices feature a narrow 1/f noise bandwidth of 1 Hz, enabling magnetic field manipulation for high-performance OPMs. They exhibit a low noise of 146 pA/√Hz and 4.1 nA/√Hz, which translates to 15 and 16 ppb/√Hz noise relative to full scale.

Original language	English
Article number	014701
Number of pages	9
Journal	Review of Scientific Instruments
Volume	94
Issue number	1
DOIs	https://doi.org/10.1063/5.0114760
Publication status	Published - 3 Jan 2023

Keywords

low noise
instrumentation
current sources
optically pumped magnetometer (OPM)
electronics
analog circuits

Access to Document

10.1063/5.0114760Licence: CC BY 4.0

Mrozowski-etal-RSI-2023-Ultra-low-noise-bi-polar-programmableFinal published version, 1.89 MBLicence: CC BY 4.0

UK National Quantum Technology Hub in Sensors and Timing
Riis, E., Arnold, A., Griffin, P. & Hastie, J.
EPSRC (Engineering and Physical Sciences Research Council)
1/12/19 → 30/11/24
Project: Research
Translational Quantum Technology Phd Studentship - Birmingham Doctoral Training Programme | Mrozowski, Marcin
Griffin, P., Riis, E. & Mrozowski, M.
EPSRC (Engineering and Physical Sciences Research Council)
1/10/19 → 1/04/23
Project: Research Studentship - Internally Allocated

Strathclyde-EQOP/Vernier-Current-Driver
Mrozowski, M. (Creator) & Chalmers, I. (Contributor), Zenodo, 8 Jun 2022
DOI: 10.5281/zenodo.6623286, https://github.com/Strathclyde-EQOP/Vernier-Current-Driver
Dataset

Cite this

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title = "Ultra-low noise, bi-polar, programmable current sources",

abstract = "We present the design process and implementation of fully open-source, ultra-low noise programmable current source systems in two configurations. Although originally designed as coil drivers for Optically Pumped Magnetometers (OPMs), the device specifications make them potentially useful in a range of applications. The devices feature a bi-directional current range of ±10 and ±250 mA on three independent channels with 16-bit resolution. Both devices feature a narrow 1/f noise bandwidth of 1 Hz, enabling magnetic field manipulation for high-performance OPMs. They exhibit a low noise of 146 pA/√Hz and 4.1 nA/√Hz, which translates to 15 and 16 ppb/√Hz noise relative to full scale.",

keywords = "low noise, instrumentation, current sources, optically pumped magnetometer (OPM), electronics, analog circuits",

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AU - Mrozowski, M. S.

AU - Chalmers, I. C.

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AU - Griffin, P. F.

AU - Riis, E.

PY - 2023/1/3

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N2 - We present the design process and implementation of fully open-source, ultra-low noise programmable current source systems in two configurations. Although originally designed as coil drivers for Optically Pumped Magnetometers (OPMs), the device specifications make them potentially useful in a range of applications. The devices feature a bi-directional current range of ±10 and ±250 mA on three independent channels with 16-bit resolution. Both devices feature a narrow 1/f noise bandwidth of 1 Hz, enabling magnetic field manipulation for high-performance OPMs. They exhibit a low noise of 146 pA/√Hz and 4.1 nA/√Hz, which translates to 15 and 16 ppb/√Hz noise relative to full scale.

AB - We present the design process and implementation of fully open-source, ultra-low noise programmable current source systems in two configurations. Although originally designed as coil drivers for Optically Pumped Magnetometers (OPMs), the device specifications make them potentially useful in a range of applications. The devices feature a bi-directional current range of ±10 and ±250 mA on three independent channels with 16-bit resolution. Both devices feature a narrow 1/f noise bandwidth of 1 Hz, enabling magnetic field manipulation for high-performance OPMs. They exhibit a low noise of 146 pA/√Hz and 4.1 nA/√Hz, which translates to 15 and 16 ppb/√Hz noise relative to full scale.

KW - low noise

KW - instrumentation

KW - current sources

KW - optically pumped magnetometer (OPM)

KW - electronics

KW - analog circuits

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M3 - Article

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JF - Review of Scientific Instruments

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ER -

Ultra-low noise, bi-polar, programmable current sources

Abstract

Keywords

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Projects

UK National Quantum Technology Hub in Sensors and Timing

Translational Quantum Technology Phd Studentship - Birmingham Doctoral Training Programme | Mrozowski, Marcin

Datasets

Strathclyde-EQOP/Vernier-Current-Driver

Cite this