Results 131 to 140 of about 12,767 (271)

Subthreshold Time‐Mode All‐Digital DLL With Built‐In Linearization

International Journal of Circuit Theory and Applications, EarlyView.
This paper presents a subthreshold time‐mode all‐digital delay‐locked loop (DLL) for low‐frequency clock generation. The large and tunable delay of the DLL is obtained using a static inverter delay line whose supply voltage is in the vicinity of 100 mV and adjustable by varying supply voltage. Phase error is processed by a time‐mode proportional block (
Fei Yuan, Wenhao Wu, Yushi Zhou
wiley   +1 more source

An Ultra‐Low‐Power Biopotential Acquisition Analog Front‐End Chip for Wearable Devices

International Journal of Circuit Theory and Applications, EarlyView.
A 0.8‐V, 1.2‐μW biopotential AFE combines a chopper‐stabilized CCIA with dual‐time‐scale EDO management. The slow DSL preserves > 1 GΩ input impedance, whereas an event‐triggered fast‐recovery path shortens return to the linear range after abrupt electrode‐offset disturbances. ABSTRACT A 0.8‐V, 1.2‐μW biopotential analog front‐end (AFE) IC is presented
Zhang Xin, Yang Tianqi, Xu Wei, Wang Shun, Xiaoxi Ma   +4 more
wiley   +1 more source

A Current Conveyor Implementation of Double Differential Amplifier for Active Electrodes

International Journal of Circuit Theory and Applications, EarlyView.
A CCII‐based electronic architecture for surface electromyography (sEMG) signal acquisition is presented. Simulations results demonstrate its potential as an effective analog front‐end for biomedical monitoring applications. ABSTRACT This work presents two transistor‐level solutions to implement a double differential (DD) amplifier by using a current ...
Carla Caruso, Alfio Dario Grasso, Federico N. Guerrero, Gaetano Palumbo   +3 more
wiley   +1 more source

ZnO Nanowires by Chemical Bath Deposition: A Review on Doping and Functional Devices

Electron, EarlyView.
This review reports the most recent and well‐established state‐of‐the‐art and scientific challenges related to the doping of ZnO nanowires by chemical bath deposition, encompassing native point and hydrogen‐related defects, as well as extrinsic dopants.
Clément Lausecker, Adrien Baillard, Estelle Appert, Vincent Consonni   +3 more
wiley   +1 more source

Material design strategies for flexible n‐type polymer semiconductors

FlexMat, EarlyView.
This Perspective surveys recent progress in flexible n‐type polymer semiconductors, emphasizing the interplay between molecular design and microstructure control. It outlines strategies including backbone and side‐chain engineering, multilevel microstructure optimization, to maintain charge‐transport pathways under mechanical deformation.
Xiao‐Yan Zhang, Yang‐Yang Zhou, Jie‐Yu Wang, Jian Pei, Ze‐Fan Yao   +4 more
wiley   +1 more source

Implantable electrochemical sensors for continuous blood monitoring

FlexMat, EarlyView.
Implantable electrochemical sensors enable direct, in situ, and continuous blood monitoring, shifting diagnosis from population‐based averages to dynamic, individualized analysis. This review systematically examines the influence of the unique blood properties on sensor design.
Kuangyi Zou, Yuanzhen Wang, Haidong Wang, Ye Zhang   +3 more
wiley   +1 more source

Challenges and strategies toward next‐generation high‐performance flexible and printable thin‐film transistors

FlexMat, EarlyView.
This review explores recent progress in printing strategies such as inkjet, screen, liquid metal, and roll to roll (R2R) methods and their roles in fabricating flexible TFTs. Device architectures are examined with emphasis on printed components and their influence on performance and stability.
Xia Zhao, Zhongqing Zeng, Zeyu Hu, Jaekyun Kim, Jidong Jin, Wensi Cai, Zhigang Zang   +6 more
wiley   +1 more source

Ferroelectricity and Ferroionic Dynamics in Two‐Dimensional CuInP2S6

Information &Functional Materials, EarlyView.
The coupled dynamics of ferroelectric polarization and Cu‐ion migration endow CuInP2S6 with unique ferroionic functionalities. This review connects structure, switching mechanisms, and device applications to provide a unified perspective on two‐dimensional ferroionic materials.
Shangsheng Li, Shiyu Wang, Xiongfeng Wang, Qinglin Du, Ruochen Shangguan, Guoqiang Xi, Lin Wang, Wugang Liao   +7 more
wiley   +1 more source

Opportunities for 2D‐Material‐Based Multifunctional Devices and Systems in Bioinspired Neural Networks

Small, EarlyView.
Bio‐inspired computing offers a route to highly energy‐efficient artificial intelligence. The unique physical properties of two‐dimensional (2D) materials can further enhance such computing approaches. This perspective highlights recent developments in 2D materials‐based neuromorphic devices and discusses future opportunities for integrating such novel
Jin Feng Leong, Maheswari Sivan, Jieming Pan, Zihang Fang, Jianan Li, Zefeng Xu, Shi Zhao, Quanzhen Wan, Evgeny Zamburg, Aaron Voon‐Yew Thean   +9 more
wiley   +1 more source

Amplificador operacional de transcondutância para filtros contínuos totalmente integráveis de alto Q [PDF]

, 1994
Vincence, Volney Coelho
core