Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – Nonlinear amplifying circuit
Patent
1996-06-26
1999-02-16
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
Nonlinear amplifying circuit
327 66, 327361, 327363, 327538, 330252, 330261, G06G 726
Patent
active
058724834
ABSTRACT:
In a differential circuit including first and second transistors, a constant current circuit causes a constant current to flow through the first transistor. A variable current circuit causes a variable current to flow through the second transistor. A differential input voltage is given to drive the first and the second transistors and to produce an output signal in the form of an output current which may be either a differential output current across two output electrodes or a variable output current flowing through an output electrode. Each of the first and the second transistors may be bipolar transistors or MOSFET's. A relationship between the differential input voltage and the output signal is specified by a peculiar characteristic dependent on the bipolar transistors or the MOSFET's. Therefore, the differential circuit may be incorporated in an LSI circuit.
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Callahan Timothy P.
NEC Corporation
Wells Kenneth B.
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