Modeling of an ADC based on high-T/sub c/ QOJS comparators

Author

Harnisch, T. ; Uhlmann, F.H. ; Topfer, H. ; Moore, D.F. ; Pauza, A.J. ; Lamacraft, K.

Author_Institution

Dept. of the Fundamentals, Tech. Univ. of Ilmenau, Germany

Volume

5

Issue

2

fYear

1995

fDate

6/1/1995 12:00:00 AM

Firstpage

2628

Lastpage

2631

Abstract

Existing proposals for high temperature superconductor analog to digital converter (ADC) circuits suffer performance penalties because of the difficulty of fabricating devices with small and controlled inductances. The design of a quasi-one junction SQUID (QOJS) comparator for a high-T/sub c/ flash ADC is proposed and discussed. The inductances are calculated with the help of a three-dimensional field calculation program, and simulations on the QOJS-comparator are performed using a SPICE-type simulation program.<>

Keywords

SPICE; SQUIDs; analogue-digital conversion; circuit analysis computing; comparators (circuits); high-temperature superconductors; inductance; integrated circuit design; integrated circuit modelling; integrated circuit noise; superconducting device noise; superconducting integrated circuits; transient analysis; 10 GHz; 50 K; SPICE-type simulation program; clock current; comparator design; high temperature superconductor analog to digital converter; high-T/sub c/ flash ADC; inductance calculation; inductance control; quasi-one junction SQUID comparator; three-dimensional field calculation program; transient noise simulation; Clocks; Critical current; Equations; High temperature superconductors; Inductance; Josephson junctions; Magnetic flux; SQUIDs; Superconducting magnets; Superconducting microwave devices;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.403129

Filename

403129