Results 241 to 250 of about 395,266 (293)

The Common-Mode Rejection of Transistor Differential Amplifiers

IEEE Transactions on Circuit Theory, 1966
The primary aim of differential amplifiers is amplification of differential-mode input voltages and the suppression of common-mode input voltages. The problem of common-mode rejection of transistor-differential amplifiers is investigated. It is shown that in addition to the known possibilities of biasing differential stage from a constant current ...
G. Meyer-Brotz, A. Kley
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Common mode noise rejection in measuring channels

Instruments and Experimental Techniques, 2015
There is a solution proposed in this paper to reject common mode noise (caused by potential difference between a sensor and a measurement channel) in measurement channels. Its main idea is to provide power supply of measuring subsystem using either an accumulator or a capacitor, which is periodically charged from the electric network by switching on ...
Su Jun, Orest Kochan
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Common mode rejection ratio in differential amplifiers

IEEE Transactions on Instrumentation and Measurement, 1991
The common mode rejection ratio (CMRR) of a differential amplifier (DA) using a single operational amplifier and an instrumentation amplifier (IA) using three operational amplifiers is analyzed, and the complete equations are derived for the case when op amps have finite differential and common mode gains.
R. Pallas-Areny, J.G. Webster
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Common-Mode Rejection Ratio-Two Definitions

IEEE Transactions on Biomedical Engineering, 1970
Two different definitions of the common-mode rejection ratio for differential amplifiers are not clearly distinguished. These ratios may differ by orders of magnitude. When differential amplifiers are used to minimize common mode interference in bioelectric measurements, these two ratios should be carefully defined and their magnitudes determined ...
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Common-mode rejection of the differential operational amplifier with shunt common-mode feedback

IEEE Journal of Solid-State Circuits, 1975
A simple expression is derived for the common-mode rejection ratio (CMRR) of the differential operational amplifier with shunt common-mode (CM) feedback. The CMRR is exclusively expressed in terms of a fractional unbalance of the bridge circuit composed of an input resistor pair and a shunt CM feedback resistor pair.
T. Furukawa, J. Arisawa
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Common-mode rejection ratio redefined

IEEE Transactions on Instrumentation and Measurement, 1997
Redefining the common-mode rejection ratio (CMRR), a set of equations is derived for the common-mode gain and the CMRR of differential amplifiers. The results, which are consistent with practice and simulation, show that an amplifier's CMR may exceed the CMR of the active device(s) by intentional unbalancing of the circuit.
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Novel microwave balanced bandpass filter with high common mode rejection ratio and wide rejection band under common mode operation

Journal of Electromagnetic Waves and Applications, 2019
In this work, a new balanced band pass filter and its design procedure are proposed. The filter is based on a novel resonator, named LTLC resonator, which consists of two inductors (L), two Transmi...
Jose-Luis Olvera-Cervantes, Alonso Corona-Chavez, Tejinder Kaur, Miguel-Antonio Romero-Ramirez   +3 more
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An ECG/EEG Common Mode Rejection Ratio Analyzer

Journal of Clinical Engineering, 1982
An ECG/EEG common-mode rejection ratio analyzer is discussed and its method of operation is analyzed. In addition to easily performed common-mode rejection ratio tests, this instrument also can perform linearity, frequency response and sweep-speed tests.
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On the measurement of common-mode rejection ratio

IEEE Transactions on Circuits and Systems II: Express Briefs, 2005
In this brief, several commonly used measurement configurations for common-mode rejection ratio (CMRR) are analyzed and compared with the definition; their advantages and limitations are also discussed. Finally, an improved measurement setup is proposed to characterize CMRR more accurately according to its definition over wider frequency range.
null Jian Zhou, null Jin Liu
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Common-mode rejection limitations of differential amplifiers

IEEE Journal of Solid-State Circuits, 1976
The common-mode rejection ratio (CMRR) equations of the differential pair and differential cascade amplifiers are reformulated in terms of imbalances in the saturation current. Early voltage, and current gain parameters of the transport model of the bipolar transistor. The effect of source resistance on CMRR is included in the formulation.
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