Results 31 to 40 of about 16,972 (295)

Analysis and Design of High-Energy-Efficiency Amplifiers for Delta-Sigma Modulators

Active and Passive Electronic Components, 2023
This study presents a dynamic amplifier with high energy efficiency and high gain suitable for a delta-sigma modulator based on the floating-inverter amplifier (FIA), in-depth analysis of the existing FIA and its improved structure, and simulation ...
Jinze Lai, Yuxuan Lin, Gumeng Zhao, Lijie Huang, Cong Wei, Rongshan Wei, Wei Hu   +6 more
doaj   +1 more source

Use of chopper-notch modulator in chopper amplifiers for replica images cancellation [PDF]

2008 15th IEEE International Conference on Electronics, Circuits and Systems, 2008
A method for cancelling the replica image limiting the chopper stabilization technique is presented. The modulation of the 1/f noise at the chopping frequency and its multiple are conventionally reduced by a low-pass filter and, possibly by a notch filter.
Francesco Geusa, Andrea Agnes, Franco Maloberti   +2 more
openaire   +1 more source

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 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

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

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

Deciphering transcriptional plasticity in pancreatic ductal adenocarcinoma reveals alterations in sensory neuron innervation

Molecular Oncology, EarlyView.
Pancreatic sensory neurons innervating healthy and PDAC tissue were retrogradely labeled and profiled by single‐cell RNA sequencing. Tumor‐associated innervation showed a dominant neurofilament‐positive subtype, altered mitochondrial gene signatures, and reduced non‐peptidergic neurons.
Elena Genova, Michele Montrone, Uday Rangaswamy, Francesco Diversi, Irene Schiavo, Denise Ferrarini, Roberta Di Florio, Irene Longo, Michele Coscia, Nicola Zamboni, Giorgia Demontis, Lisa Veghini, Vincenzo Corbo, Remo Sanges, Paul Heppenstall   +14 more
wiley   +1 more source

Differential amplifier with regulator achieves high stability, low drift [PDF]

, 1961
When d-c signals are to be amplified, the usual approach is to use a direct-coupled circuit. The difficulty of maintaining sufficiently low drift in a direct-coupled configuration led to the development of chopper and chopper-stabilized circuits, where ...
Middlebrook, R. D., Taylor, A. D.
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