NIST logo

Publication Citation: Time-Division Superconducting Quantum Interference Device Multiplexer for Transition-Edge Sensors

NIST Authors in Bold

Author(s): Piet DeKorte; Joern Beyer; Steven Deiker; Gene C. Hilton; Kent D. Irwin; Michael MacIntosh; Sae Woo Nam; Carl D. Reintsema; Leila R. Vale; Martin Huber;
Title: Time-Division Superconducting Quantum Interference Device Multiplexer for Transition-Edge Sensors
Published: August 01, 2003
Abstract: We report on the design and performance of our second-generation 32-channel time-division multiplexer developed for the read-out 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 interrupted sub-millimeter/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.
Citation: Review of Scientific Instruments
Volume: 74
Issue: 8
Pages: pp. 3807 - 3815
Keywords: bolometers;cryogenic electronics;microcalorimeters;multiplexer;SQUID;transition-edge sensors
Research Areas: Sensors