专利名称：Differential amplifier circuit发明人：Robert A. Blauschild申请号：US06/876641申请日：19860616公开号：US04649352A公开日：19870310
摘要：An input portion (4, 6) of a differential amplifier circuit amplifies a differentialinput signal to produce an amplified signal between a pair of terminals. A summingsection contains two complementary pairs of like- polarity amplifiers (13, 14 and 19, 20).Each has a first flow electrode, a second flow electrode, and a control electrode. Asubstantially constant bias voltage is supplied to the control electrodes of the first pair(13, 14) whose second electrodes are respectively coupled to the second electrodes ofthe second pair (19, 20). Their first electrodes are respectively coupled to the terminalsand to corresponding impedance elements (11, 12). The control electrodes of the secondpair are coupled together to receive a voltage dependent on the voltage at the secondelectrode of one (13) of the first pair so as to produce a representative output signal atthe second electrode of the other (14) of the first pair.
申请人：SIGNETICS CORPORATION
代理人：R. J. Meetin,R. T. Mayer,J. Oisher
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