A 1-to-1-kHz, 4.2-to-544-nW, Multi-Level Comparator Based Level-Crossing ADC for IoT Applications

Yuting Hou; Khalil Yousef; Mohamed Atef; Guoxing Wang; Yong Lian

doi:10.1109/TCSII.2018.2854862

A 1-to-1-kHz, 4.2-to-544-nW, Multi-Level Comparator Based Level-Crossing ADC for IoT Applications

Yuting Hou, Khalil Yousef, Mohamed Atef, Guoxing Wang, Yong Lian

Research output: Contribution to journal › Article › peer-review

25 Citations (Scopus)

Abstract

This brief presents the design of an ultra-low power level-crossing analog-to-digital converter (LC-ADC) for IoT and biomedical applications. The proposed LC-ADC utilizes only one multi-level comparator instead of multiple comparators as in conventional LC-ADC, leading to simplified implementation and significant reduction in power. Implemented in 0.18-μ m CMOS process, the LC-ADC achieves 7.9 equivalent number of bits with a 49 dB signal-to-noise and distortion ratio at the input frequency up to 1 kHz. The measured minimum power is only 4.2 nW at the supply voltage of 0.55 V.

Original language	English
Article number	8411440
Pages (from-to)	1390-1394
Number of pages	5
Journal	IEEE Transactions on Circuits and Systems II: Express Briefs
Volume	65
Issue number	10
DOIs	https://doi.org/10.1109/TCSII.2018.2854862
Publication status	Published - Oct 2018
Externally published	Yes

Keywords

LC-ADC
multi-level comparator
ultra-low power

ASJC Scopus subject areas

Electrical and Electronic Engineering

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10.1109/TCSII.2018.2854862

Cite this

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title = "A 1-to-1-kHz, 4.2-to-544-nW, Multi-Level Comparator Based Level-Crossing ADC for IoT Applications",

abstract = "This brief presents the design of an ultra-low power level-crossing analog-to-digital converter (LC-ADC) for IoT and biomedical applications. The proposed LC-ADC utilizes only one multi-level comparator instead of multiple comparators as in conventional LC-ADC, leading to simplified implementation and significant reduction in power. Implemented in 0.18-μ m CMOS process, the LC-ADC achieves 7.9 equivalent number of bits with a 49 dB signal-to-noise and distortion ratio at the input frequency up to 1 kHz. The measured minimum power is only 4.2 nW at the supply voltage of 0.55 V.",

keywords = "LC-ADC, multi-level comparator, ultra-low power",

author = "Yuting Hou and Khalil Yousef and Mohamed Atef and Guoxing Wang and Yong Lian",

note = "Funding Information: Manuscript received June 27, 2018; accepted June 28, 2018. Date of publication July 16, 2018; date of current version September 27, 2018. This work was supported in part by the Natural Science Foundation of China under Grant 61474074, and in part by the National Key Research and Development Program of China under Grant 2016YFE0116900. This brief was recommended by Associate Editor J. M. de la Rosa. (Corresponding author: Guoxing Wang.) Y. Hou, G. Wang, and Y. Lian are with the Bio-Circuits and Systems Laboratory, Department of Micro-Nano Electronics, Shanghai Jiao Tong University, Shanghai 200240, China (e-mail: guoxing@sjtu.edu.cn). Publisher Copyright: {\textcopyright} 2004-2012 IEEE.",

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AU - Wang, Guoxing

AU - Lian, Yong

N1 - Funding Information: Manuscript received June 27, 2018; accepted June 28, 2018. Date of publication July 16, 2018; date of current version September 27, 2018. This work was supported in part by the Natural Science Foundation of China under Grant 61474074, and in part by the National Key Research and Development Program of China under Grant 2016YFE0116900. This brief was recommended by Associate Editor J. M. de la Rosa. (Corresponding author: Guoxing Wang.) Y. Hou, G. Wang, and Y. Lian are with the Bio-Circuits and Systems Laboratory, Department of Micro-Nano Electronics, Shanghai Jiao Tong University, Shanghai 200240, China (e-mail: guoxing@sjtu.edu.cn). Publisher Copyright: © 2004-2012 IEEE.

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A 1-to-1-kHz, 4.2-to-544-nW, Multi-Level Comparator Based Level-Crossing ADC for IoT Applications

Abstract

Keywords

ASJC Scopus subject areas

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