{"about":{"site":"https://codewithpapers.app","non_affiliation":"Code with Papers and Syntology are not affiliated with, endorsed by, or sponsored by Papers with Code, Meta, or the pwc-archive mirror.","licence":"CC BY-SA 4.0","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","attribution":"https://codewithpapers.app/attribution","modified":"archive material modified by Syntology; see the attribution page"},"url":"/paper/ultra-low-noise-bi-polar-programmable-current","title":"Ultra-low noise, bi-polar, programmable current sources","arxiv_id":"2207.10348","date":"2022-07-21","proceeding":null,"authors":["M. S. Mrozowski","I. C. Chalmers","S. J. Ingleby","P. F. Griffin","E. Riis"],"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 $\\pm$~10~mA and $\\pm$~250~mA respectively on three independent channels with 16-bit resolution. Both devices feature narrow 1/f noise bandwidth of 1~Hz, enabling magnetic field manipulation for high-performance OPMs. They exhibit low noise of 146.3~pA/$\\sqrt{\\mathrm{Hz}}$ and 4114~pA/$\\sqrt{\\mathrm{Hz}}$ which translates to 14.57~ppb/$\\sqrt{\\mathrm{Hz}}$ and 16.46~ppb/$\\sqrt{\\mathrm{Hz}}$ noise relative to full scale.","url_abs":"https://arxiv.org/abs/2207.10348v2","url_pdf":"https://arxiv.org/pdf/2207.10348v2.pdf","source":{"archive":"pwc-archive (Hugging Face), CC BY-SA 4.0","snapshot":"2025-07-28","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","row_kind":"links_only","authors_date_abstract":"arXiv metadata, CC0 1.0 (https://info.arxiv.org/help/license), from the Kaggle arXiv metadata snapshot of 2026-09-12"},"code_links":[{"paper_slug":"ultra-low-noise-bi-polar-programmable-current","repo_url":"https://github.com/strathclyde-eqop/vernier-current-driver","is_official":1,"mentioned_in_paper":1,"mentioned_in_github":1,"framework":"none","reach":null}],"tasks":[],"methods":[],"datasets_introduced":[],"methods_introduced":[],"results":[],"syntology":{"syntology_url":null,"atlas_url":null,"mcp":null,"developers":"https://syntology.ai/developers"},"arxiv_metadata":null,"syntology_extracted_results":null}