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

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

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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 Sensing and Timing
Griffin, P. (Principal Investigator), Hunter, D. (Principal Investigator), Johnson, S. (Principal Investigator), McGilligan, J. P. (Principal Investigator), Moriya, P. (Principal Investigator), Riis, E. (Principal Investigator), Arnold, A. (Co-investigator), Griffin, P. (Co-investigator), Hastie, J. (Co-investigator), Ingleby, S. (Co-investigator), Moriya, P. (Research Co-investigator) & Moriya, P. (Research Co-investigator)
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. (Principal Investigator), Riis, E. (Co-investigator) & Mrozowski, M. (Research Co-investigator)
EPSRC (Engineering and Physical Sciences Research Council)
1/10/19 → 9/01/24
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",

author = "Mrozowski, {M. S.} and Chalmers, {I. C.} and Ingleby, {S. J.} and Griffin, {P. F.} and E. Riis",

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

Abstract

Keywords

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Projects

UK National Quantum Technology Hub in Sensing and Timing

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

Datasets

Strathclyde-EQOP/Vernier-Current-Driver

Cite this