Differential amplifier

Details Differential amplifier Differential amplifier

2006-11-14

2006-11-14

Pascal, Robert (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including differential amplifier

C330S260000

Reexamination Certificate

active

07135923

ABSTRACT:
A differential amplifier for amplifying an input differential signal having two components (In+, In−) substantially in anti-phase to each other and generating an output differential signal having two differential components (Out+, Out−). The amplifier comprises a pair of inverters coupled to a pair of adders the inverters receiving the input differential signal. The amplifier is characterized in that it further comprises a pair of controllable buffers for receiving the input differential signal and outputting a signal to the pair of adders. A bias of the said pair of buffers is cross-controlled by the input differential signal for controlling an amplification of said pair of controllable buffers.

REFERENCES:
patent: 4887047 (1989-12-01), Somerville
patent: 6720830 (2004-04-01), Andreou et al.

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