Amplifiers – With semiconductor amplifying device – Including differential amplifier
Patent
1980-01-31
1982-04-27
Mullins, James B.
Amplifiers
With semiconductor amplifying device
Including differential amplifier
330297, 330307, H03F 345
Patent
active
043273327
ABSTRACT:
In an integrated circuit structure including IF amplifier stages coupled in cascade by d-c blocking capacitors to restrict the noise bandwidth of an FM receiver in which it is employed and receiving power from a common power supply line, separate operating voltage generating circuits are provided for each amplifier stage to inhibit undesired oscillations. Each voltage generating circuit is decoupled from the power supply line by a respective lateral transistor configuration cooperative with a current mirror amplifier arrangement to supply a reference current to the voltage generating circuit.
REFERENCES:
patent: 3518458 (1970-06-01), Camenzind
patent: 3673499 (1972-06-01), Avins et al.
patent: 4008441 (1977-02-01), Schade, Jr.
patent: 4057763 (1977-11-01), Wheatley, Jr.
RCA Technical Note No. 949, Dec. 31, 1973, "Current-Mirror Amplifiers Having Current Gains Less Influenced by the Base Currents of Component Transistors", by J. S. Radovsky.
Emanuel P. M.
Limberg A. L.
Mullins James B.
RCA Corporation
Whitacre E. M.
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