Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – Nonlinear amplifying circuit
Patent
1996-06-26
1998-11-03
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
Nonlinear amplifying circuit
327 66, 327538, 330252, 330261, G06G 726
Patent
active
058313273
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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