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Design of Self-Calibration Comparator for 12-Bit SAR ADCs

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成果类型:
期刊论文
作者:
Tang, Junlong;Wang, Yaodong;Gu, Hongbo;Zou, Wanghui
通讯作者:
Junlong Tang
作者机构:
School of Physics and Electronics, Hunan University, Changsha 410082, China
Hunan Pin Teng Technology Co., Ltd., Changsha 410006, China
[Wang, Yaodong; Zou, Wanghui] School of Physics and Electronic Sciences, Changsha University of Science and Technology, Changsha 410114, China
Author to whom correspondence should be addressed.
[Gu, Hongbo] School of Physics and Electronics, Hunan University, Changsha 410082, China<&wdkj&>Hunan Pin Teng Technology Co., Ltd., Changsha 410006, China
通讯机构:
[Junlong Tang] S
School of Physics and Electronic Sciences, Changsha University of Science and Technology, Changsha 410114, China<&wdkj&>Author to whom correspondence should be addressed.
语种:
英文
关键词:
voltage comparator;self-calibration;offset voltage cancellation;successive approximation register analog-to-digital converter (SAR ADC)
期刊:
Electronics
ISSN:
2079-9292
年:
2023
卷:
12
期:
10
页码:
2277-
基金类别:
Conceptualization, J.T. and Y.W.; design, implementation, H.G. and Y.W.; measurement, Y.W.; writing—review and editing, all authors; supervision, J.T.; funding acquisition, J.T. All authors have read and agreed to the published version of the manuscript. This research was funded by the Open Research Fund of Hunan Provincial Key Laboratory of Flexible Electronic Materials Genome Engineering under grant No. 202015.
机构署名:
本校为通讯机构
院系归属:
物理与电子科学学院
摘要:
A novel self-calibration comparator for a 12-bit 2.5 MSPS successive approximation register analog-to-digital converter (SAR ADC) applied in a touch microcontroller unit (MCU) with small area, high precision, fast response speed, and low-voltage detection is proposed in this paper. A combination of input/output offset storage (IOS/OOS) and an offset trimming circuit was employed to reduce the offset of the cascade preamplifier and the operational transconductance amplifier (OTA), a novel offset trimming circuit with a 5-bit digital controller w...

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