2026-10-12T01:35:43Z https://api.figshare.com/v2/oai

oai:figshare.com:article/33791968 2026-09-15T12:19:12Z portal_1197 item_type_3 month_year_09_2026

Data for An open-source high frequency lock-in amplifier Guy Stimpson (24932641) Mark Skilbeck (24815908) R. L. Patel (14364150) Ben L. Green (17493039) Gavin Morley (6564578) Lock-in amplifiers Open source software Field programmable gate arrays Demodulation (Electronics) Migrated from ePrints We present 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 $300 hardware platform.<br><br>Data used to compare a custom built, FPGA based lock in amplifier at Warwick University. Includes input noise measurements at varying demodulation frequency and measurements of linearity. data in .csv and .mat format. 2019-08-12T00:00:00Z Dataset Dataset 10.82444/warw.33791968.v1 https://figshare.com/articles/dataset/Data_for_An_open-source_high_frequency_lock-in_amplifier/33791968 CC BY 4.0