A Compact TIA in 22nm FDSOI CMOS for Qubit Readout in Monolithic Quantum Processors

• URL: http://arxiv.org/abs/2310.06792v3
• Date: Wed, 10 Jan 2024 18:08:57 GMT
• Title: A Compact TIA in 22nm FDSOI CMOS for Qubit Readout in Monolithic Quantum Processors
• Authors: Domenico Zito, Tan Doan Nhut
• Abstract summary: An inductorless transimpedance amplifier (TIA) has been designed and fabricated in a 22nm FDSOI CMOS foundry technology commercially available. Results show a transimpedance gain of 103 dBOmega with a bandwidth of 13 GHz, at room temperature, and it is expected to exhibit slightly superior performance at cryogenic temperatures.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: This paper reports an inductorless transimpedance amplifier (TIA) with very compact size and adequate performance for spin qubit readout operations in monolithic quantum processors. The TIA has been designed and fabricated in a 22nm FDSOI CMOS foundry technology commercially available. The measurement results show a transimpedance gain of 103 dB{\Omega} with a bandwidth of 13 GHz, at room temperature, and it is expected to exhibit slightly superior performance at cryogenic temperatures. The power consumption amounts to 4.1 mW. The core area amount to 0.00025 mm2, i.e., about two orders of magnitude smaller with respect to the prior-art works, and approaching the qubit size, which makes the inductorless TIA a compact enabling solution for monolithic quantum processors.

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