Results 31 to 40 of about 16,903 (301)

Low-Noise Chopper-Stabilized Multi-Path Operational Amplifier with Nested Miller Compensation for High-Precision Sensors

Applied Sciences, 2019
This paper presents a low-noise multi-path operational amplifier for high-precision sensors. A chopper stabilization technique is applied to the amplifier to remove offset and flicker noise.
Jaesung Kim, Hyungseup Kim, Kwonsang Han, Donggeun You, Hyunwoo Heo, Yongsu Kwon, Dong-il “Dan” Cho, Hyoungho Ko   +7 more
doaj   +1 more source

A Chopper Stabilized Current-Feedback Instrumentation Amplifier for EEG Acquisition Applications

IEEE Access, 2019
A low-noise, low-power, chopper-stabilized, current-feedback instrumentation amplifier (CFIA) for bio-potential signal acquisition applications is presented. The proposed design includes an ac-coupled chopper-stabilized CFIA to reduce 1/f noise.
Chung-Jae Lee, Jong-In Song
doaj   +1 more source

Magnetoresistive biosensors with on-chip pulsed excitation and magnetic correlated double sampling. [PDF]

, 2018
Giant magnetoresistive (GMR) sensors have been shown to be among the most sensitive biosensors reported. While high-density and scalable sensor arrays are desirable for achieving multiplex detection, scalability remains challenging because of long data ...
Bechstein, Daniel JB, Guo, Yue, Hall, Drew A, Kim, Kyunglok, Lee, Jung-Rok, Ooi, Chin C, Wang, Shan X, Yao, Chengyang   +7 more
core   +2 more sources

A 55 V, Six-Channel Chopper and Auto-Zeroing Amplifier with 6.2 nV/$\sqrt{\mathbf{Hz}}$ Noise and −128 dB Total Harmonic Distortion

Eng
In this paper, a high-voltage chopper and ping-pong auto-zeroing operational amplifier was designed for industrial and automotive applications. Based on chopper stabilization, the proposed circuit introduces a novel chopper switch control signal that ...
Guolong Li, Guoqing Weng, Zhifeng Chen, Chenying Zhang, Shifan Wu, Chengying Chen   +5 more
doaj   +1 more source

A Low Noise Multipath Chopper-Stabilized Operational Amplifier Using Dynamic Element Matching Gain-Boosting and Low Input Current Adaptive Clock-Boosting Chopper Switch

IEEE Access
This paper presents a low noise multipath operational amplifier with chopper-stabilized and gain-boosted low-frequency path (LFP) amplifier. The LFP amplifier adopts the gain-boosting using dynamic element matching (DEM) and buffered adaptive clock ...
Mookyoung Yoo, Gibae Nam, Minhyeok Son, Manhyuck Choi, Inju Yu, Dahyun Jin, Euiyoung Lee, Hajun Bin, Hyoungho Ko   +8 more
doaj   +1 more source

Ultra-Low Power Programmable Bandwidth Capacitively-Coupled Chopper Instrumentation Amplifier Using 0.2 V Supply for Biomedical Applications

Journal of Low Power Electronics and Applications, 2023
This paper presents a capacitively coupled chopper instrumentation amplifier (CCIA) with ultra-low power consumption and programmable bandwidth for biomedical applications.
Xuan Thanh Pham, Xuan Thuc Kieu, Manh Kha Hoang   +2 more
doaj   +1 more source

A 50nV/√Hz 2‐channel time multiplexed bio‐chopper amplifier with current‐attenuated feedback resistor

Electronics Letters, 2022
This paper presents 2‐channel time‐multiplexed chopper instrument amplifier for better gain accuracy and mismatch. Mostly, the current‐attenuated feedback resistor with a duty‐cycled resistor is adopted for boosting the RC time constant.
Beomjin Yuk, Byeongseol Kim, Joonsung Bae   +2 more
doaj   +1 more source

The Implementation of a High-Performance Glucose Biosensor Based on Differential EGFET and Chopper Amplifier

IEEE Journal of the Electron Devices Society
In this paper, a new architecture for glucose biosensors is proposed, which adopts a Chopper amplifier instead of a conventional instrumentation amplifier (INA) and differential extended gate field effect transistor (EGFET) as the input stage.
Po-Yu Kuo, Chi-Han Liao, Jung-Chuan Chou, Chih-Hsien Lai, Yu-Hsun Nien, Po-Hui Yang, Ming-Tai Hsu, Cheng-Chun Lien, Wei-Shun Chen, Jyun-Ming Huang, Yu-Wei Chen   +10 more
doaj   +1 more source

Network divergence analysis identifies adaptive gene modules and two orthogonal vulnerability axes in pancreatic cancer

Molecular Oncology, EarlyView.
Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson, Lyanne Delgado‐Coka, Natalia Marchenko, Luisa F. Escobar‐Hoyos, Kenneth R. Shroyer, Alisa Yurovsky, Trey Ideker, Gábor Balázsi, Thomas MacCarthy, Scott Powers   +9 more
wiley   +1 more source

A Chopper Stabilization Audio Instrumentation Amplifier for IoT Applications

Journal of Low Power Electronics and Applications, 2020
A low-noise instrumentation amplifier dedicated to a nano- and micro-electro-mechanical system (M&NEMS) microphone for the use in Internet of Things (IoT) applications is presented. The piezoresistive sensor and the electronic interface are respectively,
Jamel Nebhen, Pietro M. Ferreira, Sofiene Mansouri   +2 more
doaj   +1 more source