Results 21 to 30 of about 672 (251)

A Biomedical Sensor System With Stochastic A/D Conversion and Error Correction by Machine Learning

IEEE Access, 2019
This paper presents a high-precision biomedical sensor system with a novel analog-frontend (AFE) IC and error correction by machine learning. The AFE IC embeds an analog-to-digital converter (ADC) architecture called successive stochastic approximation ...
Yusaku Hirai, Toshimasa Matsuoka, Sadahiro Tani, Shodai Isami, Keiji Tatsumi, Masayuki Ueda, Takatsugu Kamata   +6 more
doaj   +1 more source

Meta‐stability immunity technique for high speed SAR ADCs

Electronics Letters, 2017
An 8‐bit 4 GS/s 8‐channel time‐interleaved successive approximation register (SAR) analogue‐to‐digital converter (ADC) is presented. To enhance the ENOB (effective number of bits), a meta‐stability immunity technique is proposed, which utilises pre ...
L. Qiu, K. Tang, Y.J. Zheng, L. Siek
doaj   +1 more source

A 10-Bit 300 kS/s Reference-Voltage Regulator Free SAR ADC for Wireless-Powered Implantable Medical Devices

Sensors, 2018
This paper presents a reference-voltage regulator free successive-approximation-register analog-to-digital converters (SAR ADC) with self-timed pre-charging for wireless-powered implantable medical devices. Assisted by a self-timed pre-charging technique,
Yongkui Yang, Jun Zhou, Xin Liu, Wang Ling Goh   +3 more
doaj   +1 more source

11 b 200 MS/s 28‐nm CMOS 2b/cycle successive‐approximation register analogue‐to‐digital converter using offset‐mismatch calibrated comparators

Electronics Letters, 2023
This letter presents an 11 b 200 MS/s 28 nm CMOS 2b/cycle successive‐approximation register (SAR) analogue‐to‐digital converter (ADC). The offset calibration technique is proposed to reduce the comparator offset mismatch that degrades the linearity of ...
Jaehyuk Lee, Junho Boo, Junsang Park, Taiji An, Heewook Shin, Youngjae Cho, Michael Choi, Jinwook Burm, Gilcho Ahn, Seunghoon Lee   +9 more
doaj   +1 more source

An 18.39 fJ/Conversion-Step 1-MS/s 12-bit SAR ADC With Non-Binary Multiple-LSB-Redundant and Non-Integer-and-Split-Capacitor DAC

IEEE Access, 2021
A low-power 12-bit successive approximation register (SAR) analog-to-digital converter (ADC) with split-capacitor, nonbinary-weighted, and multiple-least-significant-bit (LSB)-redundant capacitor digital-to-analog converters (CDACs) is proposed.
Hsuan-Lun Kuo, Chih-Wen Lu, Poki Chen
doaj   +1 more source

A Review on Fundamentals of Noise-Shaping SAR ADCs and Design Considerations

Chips
A general overview of Noise-Shaping Successive Approximation Register (SAR) analog-to-digital converters is provided, encompassing the fundamentals, operational principles, and key architectures of Noise-Shaping SAR (NS SAR).
Victor H. Arzate-Palma, David G. Rivera-Orozco, Gerardo Molina Salgado, Federico Sandoval-Ibarra   +3 more
doaj   +1 more source

A Low Power Pre-Setting Based Sub-Radix-2 Approximation for Multi-bit/cycle SAR ADCs

IEEE Access, 2020
A pre-setting based sub-radix-2 approximation technique for multi-bit/cycle successive-approximation-register (SAR) analog to digital converters (ADCs) is proposed in this paper.
Lei Qiu, Keping Wang, Chuanshi Yang, Yuanjin Zheng   +3 more
doaj   +1 more source

Time‐restricted feeding prior to Mycobacterium tuberculosis infection reduces tissue CD4+ T cells with limited impact on bacterial clearance

FEBS Open Bio, EarlyView.
Time‐restricted feeding (TRF) in mice increased liver fatty acid oxidation and decreased fatty acid biosynthesis. These alterations persisted when TRF was discontinued and the host was infected with Mycobacterium tuberculosis. Pre‐exposure to TRF did not alter tissue (lung and spleen) mycobacterial burden but significantly reduced CD3+ T cells in lungs
Ashish Gupta, Nidhi Yadav, Subhasmita Das, R. Rajendra Kumar Reddy, Nupur Sharma, Amol Ratnakar Suryawanshi, Jaswinder Singh Maras, Ranjan Kumar Nanda   +7 more
wiley   +1 more source

An expandable 36‐channel neural recording ASIC with modular digital pixel design technique

Electronics Letters, 2023
This paper presents the design and implementation of an expandable neural recording ASIC for multiple‐channel neural recording applications. The ASIC consists of 36 modular digital pixels (MDPs) and a global digital controller (GDC) circuit. Each MDP has
Quan Wang, Gang Wang, Changhua You, Xuan Zhang, Daoyin Liu, Huanhuan Zeng, Ning Xue, Lei Yao, Tie Li   +8 more
doaj   +1 more source

A Toolkit for Targeted Neuromodulation of Striatal Direct Pathway Neurons Rescues Parkinsonian Motor Deficits in Mice

Advanced Science, EarlyView.
An adeno‐associated virus (AAV) toolkit enables selective anatomical and functional targeting of striatal D1‐MSNs through retrograde transduction. Enhanced capsids and engineered enhancers drive robust transgene expression across murine and primate models.
Zexuan Hong, Yujing Zhang, Junjiao Zhang, Hanhe Liu, Qiwei Liu, Yanglei Li, Lixin Yang, Lixia Li, Zhongjie Liu, Zhen Yuan, Zhonghua Lu, Yefei Chen, Yuantao Li, Yuwu Jiang, Taian Liu   +14 more
wiley   +1 more source