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Blocking and desensitization in bipolar and MOSFET differential amplifiers

Abuelma’atti, M.T. (1999) Blocking and desensitization in bipolar and MOSFET differential amplifiers. IEEE Transactions on Electromagnetic Compatibility, 41 (1). pp. 393-398.

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Abstract

Blocking and desensitization are among the nonlinear effects that result when bipolar and MOSFET differential amplifiers are operating in a multisignal electromagnetic interference (EMI) environment. When a weak desired signal is processed along with a strong undesired interferer signal, the weak signal may experience a reduced gain; that is, desensitization. If the amplitude of the undesired signal is sufficiently large, the gain of the desired signal may drop to zero; that is, blocking. Using a Fourier-series model for the differential input-voltage/output-current characteristics, closed-form expressions for predicting the desensitization in bipolar and MOSFET differential amplifiers are presented. These expressions are valid over a wide range of desired and blocking interfering signals amplitudes.



Item Type:Article
Date:1999
Date Type:Publication
Subjects:Electrical
Divisions:College Of Engineering Sciences > Electrical Engineering Dept
Creators:Abuelma’atti, M.T.
Email:mtaher@kfupm.edu.sa
ID Code:1450
Deposited By:ANKAR (g200603940) (g200603940)
Deposited On:27 May 2008 09:30
Last Modified:12 Apr 2011 13:08

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