TY - JOUR
AU1 - Zhang, Guofeng
AU2 - Zhang, Yi
AU3 - Dong, Hui
AU4 - Krause, Hans-Joachim
AU5 - Xie, Xiaoming
AU6 - Braginski, Alex I
AU7 - Offenhäusser, Andreas
AU8 - Jiang, Mianheng
AB - We recently demonstrated and analysed the voltage-biased SQUID bootstrapcircuit (SBC) conceived to suppress the preamplifier noise contribution in theabsence of flux modulation readout. Our scheme contains both the additionalvoltage and current feedbacks. In this study, we analysed the tolerance of the SBCnoise suppression performance to spreads in SQUID and SBC circuit parameters.Analytical results were confirmed by experiments. A one-time adjustable currentfeedback can be used to extend the tolerance to spreads such as those caused by theintegrated circuit fabrication process. This should help to improve the fabrication yieldof SBC devices integrated on one chipas required for multi-channel SQUIDsystems.
TI - Parameter tolerance of the SQUID bootstrap circuit
JF - Superconductor Science and Technology
DO - 10.1088/0953-2048/25/1/015006
DA - 2012-01-01
UR - https://www.deepdyve.com/lp/iop-publishing/parameter-tolerance-of-the-squid-bootstrap-circuit-1aZ0ZroEhW
SP - 015006
VL - 25
IS - 1
DP - DeepDyve
ER -