Projects per year
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 |
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Article number | 014701 |
Number of pages | 9 |
Journal | Review of Scientific Instruments |
Volume | 94 |
Issue number | 1 |
DOIs | |
Publication status | Published - 3 Jan 2023 |
Keywords
- low noise
- instrumentation
- current sources
- optically pumped magnetometer (OPM)
- electronics
- analog circuits
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Dive into the research topics of 'Ultra-low noise, bi-polar, programmable current sources'. Together they form a unique fingerprint.Projects
- 2 Active
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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
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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
Datasets
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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