Amplifiers – With semiconductor amplifying device – Including particular biasing arrangement
Patent
1985-04-17
1986-06-10
LaRoche, Eugene R.
Amplifiers
With semiconductor amplifying device
Including particular biasing arrangement
330 51, 330264, 330267, 330277, H03F 318, H03F 316
Patent
active
045945608
ABSTRACT:
An amplifying stage and a biasing stage for the amplifying stage, each include the same number and same types of IGFETs. The biasing stage components are interconnected to produce a control voltage which is a function of its components while being responsive to a reference level setting input voltage. The control voltage is applied to the amplifying stage which, when auto-zero'ed, functions as a voltage follower producing a voltage, at its input and output, which is substantially equal to the reference level applied to the biasing stage.
REFERENCES:
patent: 3914702 (1975-10-01), Gehweiler
patent: 4038607 (1977-07-01), Schade, Jr.
patent: 4068182 (1978-01-01), Dingwall et al.
Dingwall Andrew G. F.
Zazzu Victor
Haas George E.
LaRoche Eugene R.
Mottola Steven J.
RCA Corporation
Schanzer Henry I.
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