Low-Power Circuits for Internet-of-Things

A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "E:Engineering and Technology".

Deadline for manuscript submissions: closed (20 November 2021) | Viewed by 4572

Special Issue Editors


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Guest Editor
Department of Electrical and Computer Engineering, Brigham Young University, Provo, UT 84602, USA
Interests: analog integrated circuits; mixed-signal circuits; data converters; analog-to-digital converters; ADC; digital-to-analog converters; DAC; ultra low power circuits

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Guest Editor
Department of Electrical and Computer Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan
Interests: analog-integrated circuits; mixed-signal circuits; wirelined transceiver; delta sigma data converters; sensor interface circuits; analog-to-digital converters; digital-to-analog-converters; switched-capacitor circuits; precision circuits

Special Issue Information

Dear Colleagues,

Internet-of-Things (IoT) devices have become widespread in the last several years largely thanks to advances in battery life, communications technology, signal-processing algorithms, electronic fabrication, and manufacturing. In particular, innovative circuit designs in wireless/wireline transceivers, data conversion, clock generation, analog- and digital-signal processing, application-specific processors, and power management have dramatically improved the capabilities of IoT devices and lowered the adoption cost critical for massive IoT deployment. Challenges such as limited battery power, low supply voltage, noise, circuit variability, and cost continue to present bottlenecks for the next generation of IoT devices. Unique solutions through innovations in circuit topologies and architectures, hardware-accelerated signal processing, power-aware design, calibration, and bio-inspired designs are being actively investigated. This issue covers the latest developments in circuit designs for IoT applications with a specific focus on low-power techniques.

Dr. Shiuh-hua Wood Chiang
Dr. Chia-Hung Chen
Guest Editors

Manuscript Submission Information

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Keywords

  • internet-of-things
  • smart devices
  • wearables
  • embedded sensors
  • low-power circuits
  • application-specific integrated circuits (ASIC)
  • analog- and mixed-signal circuits
  • RF circuits

Published Papers (1 paper)

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Review

26 pages, 11984 KiB  
Review
A Survey on Analog-to-Digital Converter Integrated Circuits for Miniaturized High Resolution Ultrasonic Imaging System
by Dongdong Chen, Xinhui Cui, Qidong Zhang, Di Li, Wenyang Cheng, Chunlong Fei and Yintang Yang
Micromachines 2022, 13(1), 114; https://doi.org/10.3390/mi13010114 - 11 Jan 2022
Cited by 11 | Viewed by 4042
Abstract
As traditional ultrasonic imaging systems (UIS) are expensive, bulky, and power-consuming, miniaturized and portable UIS have been developed and widely utilized in the biomedical field. The performance of integrated circuits (ICs) in portable UIS obviously affects the effectiveness and quality of ultrasonic imaging. [...] Read more.
As traditional ultrasonic imaging systems (UIS) are expensive, bulky, and power-consuming, miniaturized and portable UIS have been developed and widely utilized in the biomedical field. The performance of integrated circuits (ICs) in portable UIS obviously affects the effectiveness and quality of ultrasonic imaging. In the ICs for UIS, the analog-to-digital converter (ADC) is used to complete the conversion of the analog echo signal received by the analog front end into digital for further processing by a digital signal processing (DSP) or microcontroller unit (MCU). The accuracy and speed of the ADC determine the precision and efficiency of UIS. Therefore, it is necessary to systematically review and summarize the characteristics of different types of ADCs for UIS, which can provide valuable guidance to design and fabricate high-performance ADC for miniaturized high resolution UIS. In this paper, the architecture and performance of ADC for UIS, including successive approximation register (SAR) ADC, sigma-delta (Σ-∆) ADC, pipelined ADC, and hybrid ADC, have been systematically introduced. In addition, comparisons and discussions of different types of ADCs are presented. Finally, this paper is summarized, and presents the challenges and prospects of ADC ICs for miniaturized high resolution UIS. Full article
(This article belongs to the Special Issue Low-Power Circuits for Internet-of-Things)
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