Input amplifier circuit

Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage

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Details

327391, 327544, H03F 130

Patent

active

055024173

ABSTRACT:
An input amplifier circuit including a gate circuit for amplifying such as a NAND circuit or a NOR circuit, in which a signal to be amplified is input from a first input terminal and an operating state or an inoperative state is selected by an enable signal input to a second input terminal, and a switch circuit including a resistance part, which is connected between the first input terminal and the output terminal of the NOR circuit and is controlled by the enable signal. A first MOS transistor is connected between a direct current power source and the first input terminal and is controlled by the enable signal and a second MOS transistor is connected between the first input terminal and ground and is controlled by the enable signal. Hence, a time required for raising from the inoperative state up to the operating state is reduced.

REFERENCES:
patent: 3812384 (1974-05-01), Skorup
patent: 4568842 (1986-02-01), Koike
patent: 4950926 (1990-08-01), Isobe et al.
patent: 4963769 (1990-10-01), Hiltpold et al.
patent: 5115150 (1992-05-01), Ludwig
patent: 5311070 (1994-05-01), Dooley

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