Results 71 to 80 of about 124,127 (185)

Cascomp BJT Amplifier vs. traditional configurations [PDF]

, 2012
All transistor circuits introduce distortion. In Radio Frequency (RF) circuits, the third-order distortion components are the most important. The quest for more linear circuits has become more important with complex-modulation as used in modern cellular ...
Scott, Jonathan B., Jull, Harrisson, Balsom, Toby   +2 more
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A 250 °C Low-Power, Low-Temperature-Drift Offset Chopper-Stabilized Operational Amplifier with an SC Notch Filter for High-Temperature Applications

Applied Sciences
This paper proposes a three-stage op amp based on the SOI (silicon-on-insulator) process, which achieves a low offset voltage and temperature coefficient across a wide temperature range from −40 °C to 250 °C.
Zhong Yang, Jiaqi Li, Jiangduo Fu, Jiayin Song, Qingsong Cai, Shushan Qiao   +5 more
doaj   +1 more source

Design of a chopper-stabilized multipath operational amplifier

The main content of this work is the theoretical and practical design of the chosen topology of the chopper-stabilized operational amplifier. The introductory part of the diploma thesis focuses on the theory of noise, offset and drift.
Mrázek, Petr
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Design Of Low 1/F Noise Operational Amplifier Cell Using Chopper Stabilization Technique [PDF]

, 2017
Teknik stabilisasi chopper dapat digunakan secara luas untuk input diferensial dan penguat keluaran diferensial dan dapat diimplementasikan sakelar perajang bolak-balik dari amplifier. Sebenarnya, penguat instrumentasi dengan teknik stabilisasi chopper
Eritha, Fadila Norasarin
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A 1.1uW 2.1uVrms Input Noise Chopper Amplifier for Biomedical Applications

, 2012
Thesis (Master's)--University of Washington, 2012Micropower amplifiers for neural sensing and other biosignals are becoming increasingly relevant in cutting edge biomedical research.
Mandic, Christopher John
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A Study of the Transfer Function of Chopper Amplifiers [PDF]

, 1964
The chopper amplifier is frequently used in several types of d.c and a.c amplifiers as well as in d.c servomechanisms employing a.c control elements. In this paper the transfer function of the chopper amplifier is derived for a sinusoidal input signal ...
MIZUKAMI, Kōichi, HAYASHI, Shigenori
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Chopper offset stabilized current sensing amplifier

Current sensing is an indispensable technique employed across various uses, prominently in facilitating energy conservation, protection, and motor drives.
Low, Thien Shawn
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A 36 mu W Rail-to-Rail-Input Chopper Stabilized Amplifier using Correlated Double Sampling

, 2013
This paper describes a chopper stabilized amplifier, obtained using an input chopper for modulation, an AC coupling for offset rejection and a correlated double sampling structure for demodulation, avoiding ripple spurs.
Baschirotto, A, Fornasari, A, De Blasi, M, Pipino, A, D'Amico, S, De Matteis, M   +5 more
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Realization of a Low-Distortion and Low-Noise CMOS Fully Differential Chopper Stabilized Amplifier

, 2014
本論文主要目的在設計與實現低雜訊及低失真的CMOS全差動截波穩定型放大器，應用於放大感測器所輸出的低頻且微弱的訊號 (如生醫系統的感測器感測出的訊號)，並實現一個二階GM-C帶通濾波器，以及外加一個低通濾波器以構成完整之感測器讀出電路。此電路主要是利用調變(Modulation)的技巧，使其能有效地降低放大器電路本身所產生的低頻雜訊以及輸入偏移電壓所造成的解析度誤差。本論文所實現出的電路，在利用CIC所提供的TSMC0.35um CMOS 2P4M製程技術來進行模擬。全差動截波穩定型放大器中之運算放大器，
Chen, Li Ju, 陳利如
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A Chopper Modulated Amplifier System Design for in vitro Neural Recording

, 2006
Neural recording systems measure very low-amplitude signals of less than 5 kHz bandwidth. Low-frequency noise processes such as flicker noise and DC offset can degrade the quality of recordings made by such systems.
Dagtekin, Mustafa
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