Results 11 to 20 of about 34,828 (258)
Here, a common‐mode rejection ratio (CMRR) enhancement circuit is proposed by employing an auxiliary buffer (AB) to the pseudo resistors of the capacitively coupled instrumentation amplifier (CCIA).
Longbin Zhu +4 more
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Double-Differential Amplifier for sEMG Measurement by Means of a Current-Mode Approach
This work proposes a Double Differential (DD) amplifier topology which exploits the advantages of the current-mode approach. DD amplifiers are useful as front-ends in standalone active electrodes for superficial electromyography (sEMG) wearable ...
Federico N. Guerrero +3 more
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ANALYSIS and SIMULATION of MOSFET DIFFERENTIAL AMPLIFIER [PDF]
With the evolution of electronics today, a MOSFET transistor is useful in many applications such as computers due to several advantages. In this research, an NMOS transistor differential amplifier circuit with passive load that uses a modified Wilson ...
Muneer Aboud Hashem
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The current study was aimed at providing a detailed description of the major technical characteristics for electroencephalographic (EEG) equipment and their impact on quality of the recorded signal.
А. А. Ivanov
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A Broadband, High Common-Mode Rejection Ratio Instrumentation Amplifier [PDF]
An operational amplifier based instrumentation amplifier (IA) with a common-mode rejection ratio (CMRR) independent of resistance tolerances is presented in this paper. The CMRR is determined by the operational amplifier characteristics. The IA shows a high CMRR up to 100 kHz.
openaire +2 more sources
Galvanically isolated voltage measurements are becoming increasingly important for the characterization of converter systems with fast switching Wide-Bandgap (WBG) semiconductors. A very high Common Mode Rejection Ratio (CMRR) $> 80$dB for frequencies
Pascal S. Niklaus +4 more
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Design of current sources for load common mode optimization
Bioimpedance measurement systems often use the Howland current sources to excite the biological material under study. Usually, difference or instrumentation amplifiers are used to measure the resulting voltage drop on this material.
Sirtoli Vinicius G +2 more
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Article highlights Highly accurate amplifier is designed to detect very weak signals of information (such as biomedical signals), and amplify them for further processing.
Soma Ahmadi +5 more
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Common-Mode Driven Synchronous Filtering of the Powerline Interference in ECG
Powerline interference (PLI) is a major disturbing factor in ground-free biopotential acquisition systems. PLI produces both common-mode and differential input voltages.
Tatyana Neycheva +2 more
doaj +1 more source
Robust Smartphone Assisted Biosensing Based on Asymmetric Nanofluidic Grating Interferometry
Point-of-care systems enable fast therapy decisions on site without the need of any healthcare infrastructure. In addition to the sensitive detection, stable measurement by inexperienced persons outside of laboratory facilities is indispensable.
Foelke Purr +5 more
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