Amplifier and system utilizing the same

Details Amplifier and system utilizing the same Amplifier and system utilizing the same

2007-07-05

2009-12-08

Pascal, Robert (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including differential amplifier

Reexamination Certificate

active

07629845

ABSTRACT:
An amplifier structure is disclosed. The amplifier comprises a voltage source, a first amplifying unit and a second amplifying unit. The first amplifying unit is coupled to the voltage source to amplify a first input signal and a second input signal to generate a first amplified signal according to a bias current and a reference current. The second amplifying unit is coupled to the voltage source and the first amplifying unit to amplify the first input signal and the second input signal to generate a second amplified signal according to the bias current and the reference current, wherein the amplifier generates an output signal according to the first amplified signal and the second amplified signal.

REFERENCES:
patent: 5703532 (1997-12-01), Shin et al.
patent: 2003/0141935 (2003-07-01), Chen et al.

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