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所属单位：University of Electronic Science and Technology of China (UESTC)

教研室：Integrated Physics Group (IPG)

发表刊物：2023 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)

刊物所在地：Chengdu, China

关键字：Cryo-CMOS, digital-to-analog converter, R-2R ladder, silicon Qubit, carbon nanotube Qubit

摘要：This paper presents a 65nm cryogenic CMOS, high-precision (20-bit), low noise, low power digital-to-analog converter (DAC) designed for the manipulation of silicon and carbon nanotube qubits. The DAC adopts a R-2R ladder architecture with built-in calibration. The lower 14-bits of DAC adopt a binary weighted R-2R ladder, while the higher 6-bits adopt a thermometer-coded equally-weighted resistor network. It uses a 6R-3R calibration scheme to improve the linearity. Measured under 6K, the DAC achieves a differential linearity (DNL) ≤+/−3LSB, an output noise spectral density of 3.374nV/√Hz@10kHz

备注：https://ieeexplore.ieee.org/document/10381481
Best student paper award.

全部作者：Yan Xu

第一作者：Yingjie Li

论文类型：国际会议

通讯作者：Cheng Wang

论文编号：10.1109/IMWS-AMP57814.2023.10381481

学科门类：工学

一级学科：电子科学与技术

是否译文：否

发表时间：2023-11-13