A Cryogenic Double-IF SSB Controller with Image Suppression and On-Chip Filtering implemented in 130nm SiGe BiCMOS Technology for Superconducting Qubit Control

Cryo-CMOS control of qubits has been proposed to increase compactness and reliability and to reduce latency. Several BulklFD-SOl CMOS/FinFET qubit controllers have been proposed designed to operate inside a dilution refrigerator (DF) at - 4K for interfacing various qubits 1–3. Alternatively, SiGe HBT can also operate well at cryogenic temperatures (CTs) and has exceptional noise 4 and linearity characteristics, making it suitable for interfacing with qubits.