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Cryogenic voltage-sensitive preamplifier using GaAs MESFETs of low 1ƒ noise

✍ Scribed by A. Alessandrello; C. Brofferio; D.V. Camin; A. Giuliani; G. Pessina; E. Previtali

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
429 KB
Volume
295
Category
Article
ISSN
0168-9002

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✍ D.V. Camin; G. Pessina; E. Previtali; G. Ranucci 📂 Article 📅 1989 🏛 Elsevier Science 🌐 English ⚖ 574 KB

They operate at 4 K and output characteristics taken at this temperature show high dynamic output impedance and transconductance. Using these devices it was possible to develop voltagesensitive preamplifiers for operation inside a dilution refrigerator at 1 K to amplify the signals from cryogenic pa