Temperature control

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An 8-Bit 400-MS/s 1-Then-2-Bit/Cycle SAR ADC With Comparator Rotation-Based Input-Independent Background Offset Calibration

An 8-Bit 400-MS/s 1-Then-2-Bit/Cycle SAR ADC With Comparator Rotation-Based Input-Independent Background Offset Calibration 150 150
Author(s): Changjoo Kim, Sooho Park, Yohan Choi, Minkyun Shim, Woojin Lee, Donghwi Seo, Chulwoo Kim

Abstract:

This letter presents an 8-bit 400 MS/s 1-then-2-bit/cycle successive approximation register (SAR) analog-to-digital converter (ADC) employing a comparator rotation-based background offset calibration (CRBC) technique. Unlike conventional 1-then-2-bit/cycle architectures, where calibration validity depends on the input voltage, the proposed comparator rotation-based background calibration enables input-independent background calibration, …

Published in: IEEE Solid-State Circuits Letters
Page(s): 345 – 348
Year of Publication: 2025
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2025.3624263
Publisher: IEEE

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A 76.9 ppm/K Nano-Watt PVT-Insensitive CMOS Voltage Reference Operating From 4 to 300 K for Integrated Cryogenic Quantum Interface

A 76.9 ppm/K Nano-Watt PVT-Insensitive CMOS Voltage Reference Operating From 4 to 300 K for Integrated Cryogenic Quantum Interface 150 150
Author(s): Jing Wang, Jun He, Man-Kay Law, Xinzhe Wang, Futian Liang, Lin Cheng

Abstract:

This work proposes a temperature and process-compensated low-power Cryo-CMOS voltage reference without trimming for quantum integrated interface, which is capable of operating continuously from room temperature (RT) down to cryogenic temperatures. By compensating for the main accuracy limiting factors including the process dependence of the transistor threshold voltage, device mismatch …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 3242 – 3256
Year of Publication: 2025
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2025.3530472
Publisher: IEEE

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