High frequency input buffer

Details High frequency input buffer High frequency input buffer

1997-10-10

1999-08-17

Pascal, Robert

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330258, H03F 345

Patent

active

059399422

ABSTRACT:
A high frequency input buffer within an integrated circuit that is used to receive a signal from another integrated circuit is described. A preamplifier for use in an input buffer of the integrated circuit is described. The preamplifier includes a differential amplifier with differential input terminals and output terminals. An input data signal and an input reference signal are applied to the differential inputs. The differential output signals are generated in response to the differential input signals and are adapted to be applied to the differential input terminals of an amplifier within the input buffer. An adjusting device within the preamplifier adjusts the differential outputs such that they are in a region of optimum gain for the amplifier.

REFERENCES:
patent: 4496861 (1985-01-01), Bazes
patent: 4499428 (1985-02-01), Bazes
patent: 4675556 (1987-06-01), Bazes
patent: 4849661 (1989-07-01), Bazes
patent: 4937476 (1990-06-01), Bazes
patent: 4958133 (1990-09-01), Bazes
patent: 5703532 (1997-12-01), Shin et al.

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