Wideband constant impedance amplifiers

Abstract

In a differential input/differential output wideband transistor amplifier using series and shunt negative feedback over two stages to achieve constant impedance, feedback from unbypassed emitter resistors of a pair of output transistors is applied to the respective base electrodes of a pair of input transistors 1, 21, the collector electrodes of these input transistors being connected to the respective base electrodes of the output transistors. <IMAGE>

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Cited By (2)

    Publication numberPublication dateAssigneeTitle
    EP-1154567-A2November 14, 2001Mitel Semiconductor LimitedAmplificateur de fréquence radio et syntoniseur
    EP-1154567-A3May 12, 2004Zarlink Semiconductor LimitedAmplificateur de fréquence radio et syntoniseur