Cryogenic transimpedance amplifier based on a commercial operational amplifier

Chanuk Yang; Inan Choi; Hwanchul Jung; Dongsung T. Park; Hyung Kook Choi; Yunchul Chung

doi:10.1007/s40042-023-00917-4

Cryogenic transimpedance amplifier based on a commercial operational amplifier

Chanuk Yang
, Inan Choi
, Hwanchul Jung
, Dongsung T. Park
, Hyung Kook Choi^*
, Yunchul Chung^*

^*Corresponding author for this work

Department of Physics

Jeonbuk National University
Pusan National University
Korea Advanced Institute of Science and Technology

Research output: Contribution to journal › Journal article › peer-review

2 Scopus citations

Abstract

A transimpedance amplifier working at a temperature around 50 K has been developed. The design of the amplifier is targeted to use specifically in dry dilution refrigerators for measuring quantum devices. Electrical characteristics such as input noise, bandwidth, and gain of several commercial operational amplifiers (op amps) operating at 77 K were evaluated. From a screening process, the op amp OPA827 was chosen for the benchmarking of a cryogenic transimpedance amplifier. The conductance of a quantum point contact (QPC) at 100 mK was measured in a dry dilution refrigerator in order to compare the cryogenic and room temperature performance of transimpedance amplifiers built using OPA827. The results were analyzed with a noise model describing the measurement system. We found that it is more advantageous to use a cryogenic transimpedance amplifier when the impedance of the device under test is high as in the case for most quantum devices.

Original language	English
Pages (from-to)	549-555
Number of pages	7
Journal	Journal of the Korean Physical Society
Volume	83
Issue number	7
DOIs	https://doi.org/10.1007/s40042-023-00917-4
State	Published - 2023.10

Keywords

Commercial operational amplifiers
Cryogenic transimpedance amplifier
Quantum point contact

Quacquarelli Symonds(QS) Subject Topics

Physics & Astronomy

Access to Document

10.1007/s40042-023-00917-4

Cite this

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title = "Cryogenic transimpedance amplifier based on a commercial operational amplifier",

abstract = "A transimpedance amplifier working at a temperature around 50 K has been developed. The design of the amplifier is targeted to use specifically in dry dilution refrigerators for measuring quantum devices. Electrical characteristics such as input noise, bandwidth, and gain of several commercial operational amplifiers (op amps) operating at 77 K were evaluated. From a screening process, the op amp OPA827 was chosen for the benchmarking of a cryogenic transimpedance amplifier. The conductance of a quantum point contact (QPC) at 100 mK was measured in a dry dilution refrigerator in order to compare the cryogenic and room temperature performance of transimpedance amplifiers built using OPA827. The results were analyzed with a noise model describing the measurement system. We found that it is more advantageous to use a cryogenic transimpedance amplifier when the impedance of the device under test is high as in the case for most quantum devices.",

keywords = "Commercial operational amplifiers, Cryogenic transimpedance amplifier, Quantum point contact",

author = "Chanuk Yang and Inan Choi and Hwanchul Jung and Park, \{Dongsung T.\} and Choi, \{Hyung Kook\} and Yunchul Chung",

note = "Publisher Copyright: {\textcopyright} 2023, The Korean Physical Society.",

year = "2023",

month = oct,

doi = "10.1007/s40042-023-00917-4",

language = "English",

volume = "83",

pages = "549--555",

journal = "Journal of the Korean Physical Society",

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T1 - Cryogenic transimpedance amplifier based on a commercial operational amplifier

AU - Yang, Chanuk

AU - Choi, Inan

AU - Jung, Hwanchul

AU - Park, Dongsung T.

AU - Choi, Hyung Kook

AU - Chung, Yunchul

PY - 2023/10

Y1 - 2023/10

N2 - A transimpedance amplifier working at a temperature around 50 K has been developed. The design of the amplifier is targeted to use specifically in dry dilution refrigerators for measuring quantum devices. Electrical characteristics such as input noise, bandwidth, and gain of several commercial operational amplifiers (op amps) operating at 77 K were evaluated. From a screening process, the op amp OPA827 was chosen for the benchmarking of a cryogenic transimpedance amplifier. The conductance of a quantum point contact (QPC) at 100 mK was measured in a dry dilution refrigerator in order to compare the cryogenic and room temperature performance of transimpedance amplifiers built using OPA827. The results were analyzed with a noise model describing the measurement system. We found that it is more advantageous to use a cryogenic transimpedance amplifier when the impedance of the device under test is high as in the case for most quantum devices.

AB - A transimpedance amplifier working at a temperature around 50 K has been developed. The design of the amplifier is targeted to use specifically in dry dilution refrigerators for measuring quantum devices. Electrical characteristics such as input noise, bandwidth, and gain of several commercial operational amplifiers (op amps) operating at 77 K were evaluated. From a screening process, the op amp OPA827 was chosen for the benchmarking of a cryogenic transimpedance amplifier. The conductance of a quantum point contact (QPC) at 100 mK was measured in a dry dilution refrigerator in order to compare the cryogenic and room temperature performance of transimpedance amplifiers built using OPA827. The results were analyzed with a noise model describing the measurement system. We found that it is more advantageous to use a cryogenic transimpedance amplifier when the impedance of the device under test is high as in the case for most quantum devices.

KW - Commercial operational amplifiers

KW - Cryogenic transimpedance amplifier

KW - Quantum point contact

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JF - Journal of the Korean Physical Society

IS - 7

ER -

Cryogenic transimpedance amplifier based on a commercial operational amplifier

Abstract

Keywords

Quacquarelli Symonds(QS) Subject Topics

Access to Document

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