NDLI: Inductive Isolation in Stacked SQUID Amplifiers

Content Provider	IEEE Xplore Digital Library
Author	Herr, Q.P. Miller, D.L. Pesetski, A.A. Przybysz, J.X.
Copyright Year	2002
Abstract	Amplification of SFQ pulses to higher signal levels has been achieved using the general technique of inductive isolation. A multiple-flux-quantum generator, which produces quantum-accurate waveforms suitable for ADC applications, and an output data link were demonstrated. Both circuits were implemented using critically damped, dc-powered SQUIDs stacked in series. In the past, the voltage output achievable with this approach has been severely limited by parasitic capacitance to ground and to the control lines. Parasitic capacitance inhibits SQUID operation both at turn-on and turn-off. Using inductive isolation between SQUIDs, parasitic capacitance was completely tuned out. A 100-flux-quantum waveform generator, based on a series stack of 100 SQUIDs, operated at 6 Gb/s, fabricated in a 4.5 kA-per-square-cm Josephson junction process. The output amplifier produced a 1 mV swing at 12 Gb/s non-return-to-zero. This circuit is based on a stack of only two SQUIDs, and uses both inductive isolation and asymmetric resistive shunting to enhance the out-of-phase oscillation mode.
Sponsorship	Council on Superconductivity Appl. Superconductivity Conference Inc MIT
Starting Page	565
Ending Page	568
Page Count	4
File Size	595411
File Format	PDF
ISSN	10518223
Volume Number	17
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-06-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	SQUIDs Parasitic capacitance Circuits Josephson junctions Pulse amplifiers Heterojunction bipolar transistors Stacking Superconducting transmission lines Voltage control Signal generators
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Improved multi-loop DC SQUID

SQUIDs--Past, present, and future

Josephson latching driver with a low bit-error rate

Josephson quantum interference computer devices

Bipolar Pulse-Drive Electronics for a Josephson Arbitrary Waveform Synthesizer

Development of SQIF-Based Output Broad Band Amplifier

Superconducting A/D converters based on Josephson binary counters

Error detection method for RSFQ voltage multipliers using a SQUID detector

Stacked SNS Josephson junction arrays for quantum voltage standards

Inductive Isolation in Stacked SQUID Amplifiers

Similar Documents

Improved multi-loop DC SQUID

SQUIDs--Past, present, and future

Josephson latching driver with a low bit-error rate

Josephson quantum interference computer devices

Bipolar Pulse-Drive Electronics for a Josephson Arbitrary Waveform Synthesizer

Development of SQIF-Based Output Broad Band Amplifier

Superconducting A/D converters based on Josephson binary counters

Error detection method for RSFQ voltage multipliers using a SQUID detector

Stacked SNS Josephson junction arrays for quantum voltage standards

Inductive Isolation in Stacked SQUID Amplifiers