High dynamic range SQUID readout for frequency-domain multiplexers

Mikko Kiviranta

doi:10.1007/s10909-008-9765-y

High dynamic range SQUID readout for frequency-domain multiplexers

Mikko Kiviranta

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

4 Citations (Scopus)

Abstract

A 16-SQUID array has been designed and fabricated, which shows 0.12 μΦ ₀ Hz^−1/2 flux noise at 4.2 K. The readout amplifier based on a cryogenic silicon-germanium bipolar transistor employs short-delay negative flux feedback and reaches 7 MHz bandwith for a 1 Φ _0p-p signal. The −1 dB compression is reached approximately at 4.2 Φ _0p-p amplitude when the signal frequency is 1 MHz. In the feedback mode the flux noise is anomalously increased to 0.35 μΦ ₀ Hz^−1/2.

Original language	English
Pages (from-to)	952 - 957
Number of pages	6
Journal	Journal of Low Temperature Physics
Volume	151
Issue number	3-4
DOIs	https://doi.org/10.1007/s10909-008-9765-y
Publication status	Published - 2008
MoE publication type	A1 Journal article-refereed
Event	12th International Workshop on Low Temperature Detectors (LTD12) - Paris, France Duration: 22 Jul 2007 → 27 Jul 2007

Keywords

Cryogenic semiconductor amplifiers
SQUID arrays
SQUIDs

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10.1007/s10909-008-9765-y

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title = "High dynamic range SQUID readout for frequency-domain multiplexers",

abstract = "A 16-SQUID array has been designed and fabricated, which shows 0.12 μΦ 0 Hz−1/2 flux noise at 4.2 K. The readout amplifier based on a cryogenic silicon-germanium bipolar transistor employs short-delay negative flux feedback and reaches 7 MHz bandwith for a 1 Φ 0p-p signal. The −1 dB compression is reached approximately at 4.2 Φ 0p-p amplitude when the signal frequency is 1 MHz. In the feedback mode the flux noise is anomalously increased to 0.35 μΦ 0 Hz−1/2. ",

keywords = "Cryogenic semiconductor amplifiers, SQUID arrays, SQUIDs",

author = "Mikko Kiviranta",

year = "2008",

doi = "10.1007/s10909-008-9765-y",

language = "English",

volume = "151",

pages = "952 -- 957",

journal = "Journal of Low Temperature Physics",

issn = "0022-2291",

publisher = "Springer",

number = "3-4",

note = "12th International Workshop on Low Temperature Detectors (LTD12) ; Conference date: 22-07-2007 Through 27-07-2007",

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TY - JOUR

T1 - High dynamic range SQUID readout for frequency-domain multiplexers

AU - Kiviranta, Mikko

PY - 2008

Y1 - 2008

N2 - A 16-SQUID array has been designed and fabricated, which shows 0.12 μΦ 0 Hz−1/2 flux noise at 4.2 K. The readout amplifier based on a cryogenic silicon-germanium bipolar transistor employs short-delay negative flux feedback and reaches 7 MHz bandwith for a 1 Φ 0p-p signal. The −1 dB compression is reached approximately at 4.2 Φ 0p-p amplitude when the signal frequency is 1 MHz. In the feedback mode the flux noise is anomalously increased to 0.35 μΦ 0 Hz−1/2.

AB - A 16-SQUID array has been designed and fabricated, which shows 0.12 μΦ 0 Hz−1/2 flux noise at 4.2 K. The readout amplifier based on a cryogenic silicon-germanium bipolar transistor employs short-delay negative flux feedback and reaches 7 MHz bandwith for a 1 Φ 0p-p signal. The −1 dB compression is reached approximately at 4.2 Φ 0p-p amplitude when the signal frequency is 1 MHz. In the feedback mode the flux noise is anomalously increased to 0.35 μΦ 0 Hz−1/2.

KW - Cryogenic semiconductor amplifiers

KW - SQUID arrays

KW - SQUIDs

U2 - 10.1007/s10909-008-9765-y

DO - 10.1007/s10909-008-9765-y

M3 - Article

SN - 0022-2291

VL - 151

SP - 952

EP - 957

JO - Journal of Low Temperature Physics

JF - Journal of Low Temperature Physics

IS - 3-4

T2 - 12th International Workshop on Low Temperature Detectors (LTD12)

Y2 - 22 July 2007 through 27 July 2007

ER -

High dynamic range SQUID readout for frequency-domain multiplexers

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Keywords

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