Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Patent
1998-06-08
2000-06-13
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
327543, 323312, 323315, G05F 110
Patent
active
060754052
ABSTRACT:
A constant current circuit including a first field effect transistor having a drain connected to an output terminal and having a source connected to a first power supply via a first resistor, and a plurality of field effect transistors, of each of which the ordinal number is 1 through N, and of each of which the source and the drain are connected to each other, and each of which is connected in series to one another to form a series circuit of field effect transistors, a drain of a field effect transistor located at an end of the series circuit of field effect transistors being connected to a second power supply via a second resistor, a drain of one field effect transistor composing the series circuit of field effect transistors being connected to a gate of said first field effect transistor, and an opposite end of the series circuit of field effect transistors being connected the first power supply terminal.
REFERENCES:
patent: 5440224 (1995-08-01), Kimura
patent: 5654665 (1997-08-01), Menon et al.
patent: 5670868 (1997-09-01), Moriguvhi et al.
patent: 5818212 (1998-10-01), Min et al.
"Implementation of GaAs E/D HEMT Analog Components for Oversampling Analog/Digital Conversion", IEEE GaAs IC Symposium, 1994, U.S.A., Shen Feng, Josef Sauerer and Dieter Seizer, p. 228-231.
Kobayashi Nobuo
Nishino Akira
Callahan Timothy P.
Nguyen Hai L.
OKI Electric Industry Co., Ltd.
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