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An open-source high-frequency lock-in amplifier
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Stimpson, Guy, Skilbeck, Mark, Patel, R. L., Green, Ben L. and Morley, Gavin (2019) An open-source high-frequency lock-in amplifier. Review of Scientific Instruments, 90 (9). 094701. doi:10.1063/1.5083797
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Official URL: http://dx.doi.org/10.1063/1.5083797
Abstract
We present characterization of a lock-in amplifier based on a field programmable gate array capable of demodulation at up to 50 MHz. The system exhibits 90 nV/√Hz of input noise at an optimum demodulation frequency of 500 kHz. The passband has a full-width half-maximum of 2.6 kHz for modulation frequencies above 100 kHz. Our code is open source and operates on a commercially available platform
| Item Type: | Journal Article | ||||||||||||
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| Subjects: | Q Science > QA Mathematics T Technology > TK Electrical engineering. Electronics Nuclear engineering |
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| Divisions: | Faculty of Science > Physics | ||||||||||||
| Library of Congress Subject Headings (LCSH): | Lock-in amplifiers, Open source software, Field programmable gate arrays, Demodulation (Electronics) | ||||||||||||
| Journal or Publication Title: | Review of Scientific Instruments | ||||||||||||
| Publisher: | American Institute of Physics | ||||||||||||
| ISSN: | 0034-6748 | ||||||||||||
| Official Date: | 10 September 2019 | ||||||||||||
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| Volume: | 90 | ||||||||||||
| Number: | 9 | ||||||||||||
| Article Number: | 094701 | ||||||||||||
| DOI: | 10.1063/1.5083797 | ||||||||||||
| Status: | Peer Reviewed | ||||||||||||
| Publication Status: | Published | ||||||||||||
| Access rights to Published version: | Open Access | ||||||||||||
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