Digital controlling of superconducting current steering switches
2014
Large arrays of superconducting radiation sensors require a multiplexed readout. One implementation of the promising code division multiplexing technique uses current steering switches (CSSs) based on superconducting quantum interference devices (SQUIDs). We pursue the concept of utilizing rapid single flux quantum (RSFQ) electronics to control these switches, where each SQUID of a CSS is inductively coupled to the storing loop of a delay flip-flop. The internal state of this digital logic element is represented by the presence of a magnetic flux quantum, which is destined to control the CSS.
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