EXPERIMENTAL IMPLEMENTATION OF SFQ NDRO CELLS AND 8-BIT ADC

被引:4
作者
Kaplunenko, V. K. [2 ]
Khabipov, M. I. [2 ]
Khokhlov, D. Yu. [2 ]
Kirichenko, A. F. [1 ]
Koshelets, V. P. [2 ]
Kovtonyuk, S. A. [2 ]
机构
[1] Moscow State Univ, Dept Phys, Moscow 119899, Gsp, Russia
[2] Russian Acad Sci, Inst Radio Engn & Elect, Makhovaya St 11, Moscow 103907, Gsp, Russia
关键词
D O I
10.1109/77.233975
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Two Single Flux Quantum (SFQ) Logic elements have been designed, fabricated, and successfully tested: eight bit Analog to Digital Converter (ADC) and Non Destructive readout (NDRO) cells. Converter consists of input coil, comparator and reversible ripple counter. Two types of the input coils deferring by inductance and two types of the NDRO units also have been investigated: with direct and magnetic coupling between interferometers. The integrated circuits are fabricated using 4 gm Nb-AlOx-Nb trilayer technology with critical current density about 1000 A/cm. This technique allows to produce NDRO cells working up to 10 GHz frequency.
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页码:2662 / 2665
页数:4
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