caa a22 4500 445380667 CHVBK 20180317143016.0 cr unu---uuuuu 170323e20110101xx s 000 0 eng 10.1007/s10948-010-0865-y doi (NATIONALLICENCE)springer-10.1007/s10948-010-0865-y Design and Circuit Analysis of Quasi-one Junction SQUID Comparators for Low Temperature Detector Array Read-out [Elektronische Daten] [A. Bozbey, S. Miyajima, T. Ortlepp, A. Fujimaki] In this study, we report on our simulation and experimental results for quasi-one junction SQUIDs (QOS) comparator targeted to be used in the front-end of the detector read-out circuits. The QOS is used as a 1-bit quantizer in the front-end of the read-out circuit. Their performance and reliability is very much depending on the circuit parameters of the QOSs. The main design parameters are the threshold level, gray zone width, and the chip-to-chip reproducibility over different fabrication batches. For some special applications, such as detector readout, the overall power consumption needs to be sufficient small. We measured threshold and gray zone counting each individual switching event for various bias and input current values and for different QOS designs. In addition, circuit simulations including thermal noise are used to explain the observed circuit behavior and to optimize design parameters. Springer Science+Business Media, LLC, 2010 RSFQ nationallicence Quasi-one junction SQUID comparator nationallicence Detector read-out nationallicence Superconductivity nationallicence Bozbey A. Department of Electrical and Electronics Eng., TOBB Economy and Technology University, 06560, Ankara, Turkey aut Miyajima S. Department of Quantum Engineering, Nagoya University, 464-8603, Nagoya, Japan aut Ortlepp T. Institute for Information Technology, Ilmenau University of Technology, P.O. Box 100565, 98684, Ilmenau, Germany aut Fujimaki A. Department of Quantum Engineering, Nagoya University, 464-8603, Nagoya, Japan aut Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/1-2(2011-01-01), 1065-1069 1557-1939 24:1-2<1065 2011 24 10948 https://doi.org/10.1007/s10948-010-0865-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10948-010-0865-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bozbey A. Department of Electrical and Electronics Eng., TOBB Economy and Technology University, 06560, Ankara, Turkey aut NATIONALLICENCE 700 1- Miyajima S. Department of Quantum Engineering, Nagoya University, 464-8603, Nagoya, Japan aut NATIONALLICENCE 700 1- Ortlepp T. Institute for Information Technology, Ilmenau University of Technology, P.O. Box 100565, 98684, Ilmenau, Germany aut NATIONALLICENCE 700 1- Fujimaki A. Department of Quantum Engineering, Nagoya University, 464-8603, Nagoya, Japan aut NATIONALLICENCE 773 0- Journal of Superconductivity and Novel Magnetism Springer US; http://www.springer-ny.com 24/1-2(2011-01-01), 1065-1069 1557-1939 24:1-2<1065 2011 24 10948 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer