Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Patent
1995-02-06
1996-06-11
Cunningham, Terry
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
327541, 327538, 327546, 323315, 323316, G05F 326
Patent
active
055259278
ABSTRACT:
A circuit includes a first transistor M.sub.1 ; a second transistor M.sub.2 having a gate coupled to a gate of the first transistor M.sub.1 and a source coupled to a source of the first transistor M.sub.1 ; a third transistor M.sub.3 having a source coupled to a drain of the first transistor M.sub.1 and a drain coupled to a current input I.sub.b, the drain of the third transistor M.sub.3 is coupled to the gate of the first transistor M.sub.1 ; a fourth transistor M.sub.4 having a source coupled to a drain of the second transistor M.sub.2, a gate coupled to a gate of the third transistor M.sub.3, and a drain coupled to a supply node V.sub.DD ; and a variable voltage input V.sub.x coupled to the gate of the third transistor M.sub.3.
REFERENCES:
patent: 4495425 (1985-01-01), McKenzie
patent: 4703249 (1987-10-01), De La Plaza et al.
patent: 5087891 (1992-02-01), Cytera
patent: 5155394 (1992-10-01), Szepesi
patent: 5164658 (1992-11-01), Kuwahara
patent: 5304861 (1994-04-01), Fruhauf et al.
Hellums James R.
Yang Steve W.
Yung Henry T.-H.
Cunningham Terry
Donaldson Richard L.
Hiller William E.
Stewart Alan K.
Texas Instruments Incorporated
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