Differential Bloch oscillating transistor pair

J. Sarkar (Corresponding Author), A. Puska, Juha Hassel, P.J. Hakonen

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)

Abstract

We examine a Bloch oscillating transistor pair as a differential stage for cryogenic low-noise measurements. Using two oppositely biased, nearly symmetric Bloch oscillating transistors, we measured the sum and difference signals in the current gain and transconductance modes while changing the common mode signal, either voltage or current. From the common mode rejection ratio we find values ~20 dB even under non-optimal conditions. We also characterize the noise properties and obtain excellent noise performance for measurements having source impedances in the MΩ range.
Original languageEnglish
Article number065009
Number of pages4
JournalSuperconductor Science and Technology
Volume26
Issue number6
DOIs
Publication statusPublished - 2013
MoE publication typeA1 Journal article-refereed

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Transistors
transistors
Transconductance
Cryogenics
transconductance
noise measurement
rejection
low noise
cryogenics
Electric potential
impedance
electric potential

Cite this

Sarkar, J. ; Puska, A. ; Hassel, Juha ; Hakonen, P.J. / Differential Bloch oscillating transistor pair. In: Superconductor Science and Technology. 2013 ; Vol. 26, No. 6.
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Differential Bloch oscillating transistor pair. / Sarkar, J. (Corresponding Author); Puska, A.; Hassel, Juha; Hakonen, P.J.

In: Superconductor Science and Technology, Vol. 26, No. 6, 065009, 2013.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Differential Bloch oscillating transistor pair

AU - Sarkar, J.

AU - Puska, A.

AU - Hassel, Juha

AU - Hakonen, P.J.

N1 - Project code: 41606

PY - 2013

Y1 - 2013

N2 - We examine a Bloch oscillating transistor pair as a differential stage for cryogenic low-noise measurements. Using two oppositely biased, nearly symmetric Bloch oscillating transistors, we measured the sum and difference signals in the current gain and transconductance modes while changing the common mode signal, either voltage or current. From the common mode rejection ratio we find values ~20 dB even under non-optimal conditions. We also characterize the noise properties and obtain excellent noise performance for measurements having source impedances in the MΩ range.

AB - We examine a Bloch oscillating transistor pair as a differential stage for cryogenic low-noise measurements. Using two oppositely biased, nearly symmetric Bloch oscillating transistors, we measured the sum and difference signals in the current gain and transconductance modes while changing the common mode signal, either voltage or current. From the common mode rejection ratio we find values ~20 dB even under non-optimal conditions. We also characterize the noise properties and obtain excellent noise performance for measurements having source impedances in the MΩ range.

U2 - 10.1088/0953-2048/26/6/065009

DO - 10.1088/0953-2048/26/6/065009

M3 - Article

VL - 26

JO - Superconductor Science and Technology

JF - Superconductor Science and Technology

SN - 0953-2048

IS - 6

M1 - 065009

ER -