Josephson junction A/D converters using differential coding

S. V. Rylov; V. K. Semenov; K. K. Likharev

doi:10.1109/TMAG.1987.1064883

Josephson junction A/D converters using differential coding

S. V. Rylov
, V. K. Semenov
, K. K. Likharev

Physics and Astronomy

Lomonosov Moscow State University

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

We propose a new type of the Josephson junction A/D converter which allows one to increase the conversion accuracy (characterized by the output bit number N) without using high-precision (δλ/λ⋍ 2-N) components. This improvement is possible due to a specific structure of the new device including a fast low-bit (p≪N) input A/D converter and several digital differentiation/integration stages. We discuss general properties of this device and possible realization of its main components in the Josephson technology. Estimates show that at relatively low signal frequencies an additional digital stage (1f filter) can improve drastically the converter performance making it considerably more accurate than any other A/D converter proposed earlier.

Original language	English
Pages (from-to)	735-738
Number of pages	4
Journal	IEEE Transactions on Magnetics
Volume	23
Issue number	2
DOIs	https://doi.org/10.1109/TMAG.1987.1064883
State	Published - Mar 1987

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AU - Semenov, V. K.

AU - Likharev, K. K.

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N2 - We propose a new type of the Josephson junction A/D converter which allows one to increase the conversion accuracy (characterized by the output bit number N) without using high-precision (δλ/λ⋍ 2-N) components. This improvement is possible due to a specific structure of the new device including a fast low-bit (p≪N) input A/D converter and several digital differentiation/integration stages. We discuss general properties of this device and possible realization of its main components in the Josephson technology. Estimates show that at relatively low signal frequencies an additional digital stage (1f filter) can improve drastically the converter performance making it considerably more accurate than any other A/D converter proposed earlier.

AB - We propose a new type of the Josephson junction A/D converter which allows one to increase the conversion accuracy (characterized by the output bit number N) without using high-precision (δλ/λ⋍ 2-N) components. This improvement is possible due to a specific structure of the new device including a fast low-bit (p≪N) input A/D converter and several digital differentiation/integration stages. We discuss general properties of this device and possible realization of its main components in the Josephson technology. Estimates show that at relatively low signal frequencies an additional digital stage (1f filter) can improve drastically the converter performance making it considerably more accurate than any other A/D converter proposed earlier.

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JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

IS - 2

ER -

Josephson junction A/D converters using differential coding

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