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dc.contributor.authorRazmkhah, Sasan-
dc.contributor.authorBozbey, Ali-
dc.contributor.authorFebvre, Pascal-
dc.description.abstractThe many advantages of cryogenically cooled single-flux quantum (SFQ) circuits imply that the high speed and low voltage output signals must be amplified and interfaced with standard electronics. State-of-the-art low-noise and wide-band amplifiers are required to interface with room temperature electronics. One solution is to place preamplifiers at the cryogenic stage, which requires specific semiconductor design and fabrication. However, a more viable and energy-efficient approach is to integrate the pulsed logic circuit output stages with on-chip superconductor preamplifiers. We designed, fabricated, and tested an on-chip compact voltage multiplier integrated with the output stage of SFQ circuits to increase the voltage amplitude of SFQ pulses. The circuit is designed with the same technology as the logic circuit hence its noise level is lower, and it works at higher frequencies compared to complementary metal-oxide semi-conductor amplifiers and due to quantized nature of it there is no added noise. The fabricated circuit has a compact size of 160 mu m x 320 mu m and provides about 10 dB gain with measured 600 mu V output voltage at frequencies up to similar to 25 GHz in simulations. By stacking more levels, over 20 dB gain at circuit level is achievable as shown in simulations. Moreover the gain of the superconductor voltage amplifier is quantized and programmable.en_US
dc.description.sponsorshipFrench-Turkish Partenariat Hubert Curien (PHC) BOSPHORE [39708XA]; TUBITAKTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [117F266, 117E816]; Office of the Director of National Intelligence (ODNI), Intelligence Advanced Research Projects Activity (IARPA), via the U.S. Army Research Office [W911NF-17-1-0120]en_US
dc.description.sponsorshipThis work has been partly funded by the French-Turkish Partenariat Hubert Curien (PHC) BOSPHORE No: 39708XA and TUBITAK under Grant 117F266 and 117E816. The circuits are fabricated in the clean room for analog-digital superconductivity (CRAVITY) of the National Institute of Advanced Industrial Science and Technology (AIST). The research is partly based upon work supported by the Office of the Director of National Intelligence (ODNI), Intelligence Advanced Research Projects Activity (IARPA), via the U.S. Army Research Office Grant W911NF-17-1-0120. The views and conclusions contained herein are those of the authors and should not be interpreted as necessarily representing the official policies or endorsements, either expressed or implied, of the ODNI, IARPA, or the U.S. Government. The U.S. Government is authorized to reproduce and distribute reprints for Governmental purposes notwithstanding any copyright notation herein.en_US
dc.publisherIOP Publishing Ltden_US
dc.relation.ispartofSuperconductor Science & Technologyen_US
dc.subjectsingle flux quantumen_US
dc.titleA compact high frequency voltage amplifier for superconductor-semiconductor logic interfaceen_US
dc.departmentFaculties, Faculty of Engineering, Department of Electrical and Electronics Engineeringen_US
dc.departmentFakülteler, Mühendislik Fakültesi, Elektrik ve Elektronik Mühendisliği Bölümütr_TR
dc.institutionauthorBozbey, Ali-
dc.institutionauthorRazmkhah, Sasan-
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
item.fulltextNo Fulltext-
item.openairetypeArticle- Department of Electrical and Electronics Engineering- Department of Electrical and Electronics Engineering-
Appears in Collections:Elektrik ve Elektronik Mühendisliği Bölümü / Department of Electrical & Electronics Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
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