Low Power Circuits in Microelectronics

A special issue of Electronics (ISSN 2079-9292). This special issue belongs to the section "Microelectronics".

Deadline for manuscript submissions: closed (31 October 2021) | Viewed by 3859

Special Issue Editors


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Guest Editor
Department of Electronics Technology, Carlos III University of Madrid, 28911 Leganés, Madrid, Spain
Interests: microelectronics; data converters; time encoding; neuromorphic circuits; neural networks; biomedical applications

E-Mail Website
Guest Editor
Department of Electronics Technology, Carlos III University of Madrid, 28911 Leganés, Madrid, Spain
Interests: microelectronics; circuits and systems theory; analog-to-digital converters; sigma-delta modulation

Special Issue Information

Dear Colleagues,

This Special Issue invites you to describe and present innovative ideas in relation to the design and application of low-power microelectronics architectures. The current trend towards the integration on one single chip of a whole system requires low-power designs not only due to power budget and energy savings, but also because of autonomy in wearable or IoT devices, self-supplied circuits or the battery lifecycle. Additionally, deep circuit integration may presuppose a high energy dissipation per unit of area, incompatible with a proper performance. In those cases, low power consumption is mandatory. Finally, special attention must be paid to artificial intelligence and power handling. Topics such as privacy and latency make on-edge processing of particular interest in the future, where ultra-low power and area circuits become a must.

The topics of interest include but are not limited to:

  • Wearable devices;
  • Internet of Things;
  • Automotive;
  • Consumer electronics;
  • Biomedical/Healthcare applications;
  • Neuromorphic circuits;
  • Deep-learning, neural networks, and machine learning hardware applications;
  • FPGA-based digital design;
  • Sensor applications;
  • Power circuit and energy harvesting;
  • Low-power design methodology/flow.

Dr. Eric Gutierrez
Prof. Dr. Susana Paton
Guest Editors

Manuscript Submission Information

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Keywords

  • Microelectronics
  • Low-power circuits
  • System-on-chip integration
  • Energy dissipation
  • Artificial Intelligence
  • Analog and digital circuits.

Published Papers (1 paper)

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Research

15 pages, 536 KiB  
Article
Ring-Oscillator with Multiple Transconductors for Linear Analog-to-Digital Conversion
by Leidy Mabel Alvero-Gonzalez, Victor Medina, Vahur Kampus, Susana Paton, Luis Hernandez and Eric Gutierrez
Electronics 2021, 10(12), 1408; https://doi.org/10.3390/electronics10121408 - 11 Jun 2021
Cited by 6 | Viewed by 3184
Abstract
This paper proposes a new circuit-based approach to mitigate nonlinearity in open-loop ring-oscillator-based analog-to-digital converters (ADCs). The approach consists of driving a current-controlled oscillator (CCO) with several transconductors connected in parallel with different bias conditions. The current injected into the oscillator can then [...] Read more.
This paper proposes a new circuit-based approach to mitigate nonlinearity in open-loop ring-oscillator-based analog-to-digital converters (ADCs). The approach consists of driving a current-controlled oscillator (CCO) with several transconductors connected in parallel with different bias conditions. The current injected into the oscillator can then be properly sized to linearize the oscillator, performing the inverse current-to-frequency function. To evaluate the approach, a circuit example has been designed in a 65-nm CMOS process, leading to a more than 3-ENOB enhancement in simulation for a high-swing differential input voltage signal of 800-mVpp, with considerable less complex design and lower power and expected area in comparison to state-of-the-art circuit based solutions. The architecture has also been checked against PVT and mismatch variations, proving to be highly robust, requiring only very simple calibration techniques. The solution is especially suitable for high-bandwidth (tens of MHz) medium-resolution applications (10–12 ENOBs), such as 5G or Internet-of-Things (IoT) devices. Full article
(This article belongs to the Special Issue Low Power Circuits in Microelectronics)
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