Numerical analysis of the smart DROS

M. Podt; A.J. Mieog; A.J. Mieog; Jakob Flokstra; Horst Rogalla

doi:10.1016/S0921-4534(00)01604-X

Numerical analysis of the smart DROS

M. Podt, A.J. Mieog, A.J. Mieog, Jakob Flokstra, Horst Rogalla

Faculty of Science and Technology

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

4 Citations (Scopus)

30 Downloads (Pure)

Abstract

A digital superconducting quantum interference device (SQUID) has the potential for a very large dynamic range and a very high slew rate. Our concept of the digital SQUID consists of a double relaxation oscillation SQUID (DROS) with the complete flux locked loop (FLL) electronics on one single chip. The key element of the FLL circuitry is a superconducting up-down counter, which supplies the feedback flux to the DROS. In this paper we will concentrate on the numerical simulations of our new 100 MHz smart DROS. In this new design, the quantization unit of the feedback flux, δΦfb=52 mΦ0, was optimized with respect to the flux noise of the DROS. By doing so, the flux slew rate was maximized without compromising the sensitivity. The optimization resulted in a maximum flux slew rate of δΦsig/δt=5×106Φ0/s.

Original language	Undefined
Pages (from-to)	193-200
Number of pages	8
Journal	Physica C
Volume	350
Issue number	3-4
DOIs	https://doi.org/10.1016/S0921-4534(00)01604-X
Publication status	Published - 2001

Keywords

Superconducting quantum interference device
Josephson electronics
Relaxation oscillations
METIS-200068
Digital superconducting quantum interference device
IR-74527
Superconducting device

Access to Document

10.1016/S0921-4534(00)01604-X

Cite this

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title = "Numerical analysis of the smart DROS",

abstract = "A digital superconducting quantum interference device (SQUID) has the potential for a very large dynamic range and a very high slew rate. Our concept of the digital SQUID consists of a double relaxation oscillation SQUID (DROS) with the complete flux locked loop (FLL) electronics on one single chip. The key element of the FLL circuitry is a superconducting up-down counter, which supplies the feedback flux to the DROS. In this paper we will concentrate on the numerical simulations of our new 100 MHz smart DROS. In this new design, the quantization unit of the feedback flux, δΦfb=52 mΦ0, was optimized with respect to the flux noise of the DROS. By doing so, the flux slew rate was maximized without compromising the sensitivity. The optimization resulted in a maximum flux slew rate of δΦsig/δt=5×106Φ0/s.",

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T1 - Numerical analysis of the smart DROS

AU - Podt, M.

AU - Mieog, A.J.

AU - Flokstra, Jakob

AU - Rogalla, Horst

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Y1 - 2001

N2 - A digital superconducting quantum interference device (SQUID) has the potential for a very large dynamic range and a very high slew rate. Our concept of the digital SQUID consists of a double relaxation oscillation SQUID (DROS) with the complete flux locked loop (FLL) electronics on one single chip. The key element of the FLL circuitry is a superconducting up-down counter, which supplies the feedback flux to the DROS. In this paper we will concentrate on the numerical simulations of our new 100 MHz smart DROS. In this new design, the quantization unit of the feedback flux, δΦfb=52 mΦ0, was optimized with respect to the flux noise of the DROS. By doing so, the flux slew rate was maximized without compromising the sensitivity. The optimization resulted in a maximum flux slew rate of δΦsig/δt=5×106Φ0/s.

AB - A digital superconducting quantum interference device (SQUID) has the potential for a very large dynamic range and a very high slew rate. Our concept of the digital SQUID consists of a double relaxation oscillation SQUID (DROS) with the complete flux locked loop (FLL) electronics on one single chip. The key element of the FLL circuitry is a superconducting up-down counter, which supplies the feedback flux to the DROS. In this paper we will concentrate on the numerical simulations of our new 100 MHz smart DROS. In this new design, the quantization unit of the feedback flux, δΦfb=52 mΦ0, was optimized with respect to the flux noise of the DROS. By doing so, the flux slew rate was maximized without compromising the sensitivity. The optimization resulted in a maximum flux slew rate of δΦsig/δt=5×106Φ0/s.

KW - Superconducting quantum interference device

KW - Josephson electronics

KW - Relaxation oscillations

KW - METIS-200068

KW - Digital superconducting quantum interference device

KW - IR-74527

KW - Superconducting device

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