Time-division superconducting quantum interference device multiplexer for transition-edge sensors

Autor:	Steve Deiker, Martin E. Huber, Carl D. Reintsema, Joern Beyer, Kent D. Irwin, Piet A. J. de Korte, Sae Woo Nam, M. J. MacIntosh, Leila R. Vale, Gene C. Hilton
Rok vydání:	2003
Předmět:	Physics law Time-division multiplexing Bolometer Bandwidth (signal processing) Electronic engineering Photodetector Low frequency Instrumentation Multiplexing Multiplexer Decoupling (electronics) law.invention
Zdroj:	Review of Scientific Instruments. 74:3807-3815
ISSN:	1089-7623 0034-6748
DOI:	10.1063/1.1593809
Popis:	We report on the design and performance of our second-generation 32-channel time-division multiplexer developed for the readout of large-format arrays of superconducting transition-edge sensors. We present design issues and measurement results on its gain, bandwidth, noise, and cross talk. In particular, we discuss noise performance at low frequency, important for long uninterrupted submillimeter/far-infrared observations, and present a scheme for mitigation of low-frequency noise. Also, results are presented on the decoupling of the input circuit from the first-stage feedback signal by means of a balanced superconducting quantum interference device pair. Finally, the first results of multiplexing several input channels in a switched, digital flux-lock loop are shown.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c54f1e258b4a1d6c9059f29f830c9a88 https://doi.org/10.1063/1.1593809 Zobrazit plný text záznamu