Amplifiers – With semiconductor amplifying device – Including differential amplifier
Patent
1988-11-09
1990-03-27
Mullins, James B.
Amplifiers
With semiconductor amplifying device
Including differential amplifier
330 51, 379324, H03F 345
Patent
active
049124269
ABSTRACT:
The amplifier circuit is arranged such that an open drain type amplifying circuit is provided on the side of output of a differential amplifying circuit having an active load. In this arrangement, the differential amplifying circuit is brought into a non-operational state, and at the same moment an electric potential of output of the differential amplifying circuit is fixedly set to a predetermined level. Consequently, the open drain type amplifying circuit is surely kept in the non-operational state.
REFERENCES:
patent: 4546327 (1985-10-01), Suzuki et al.
Adams Bruce L.
Mullins James B.
Seiko Instruments Inc.
Wilks Van C.
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