Class AB rail-to-rail operational amplifier

Details Class AB rail-to-rail operational amplifier Class AB rail-to-rail operational amplifier

2007-03-06

2007-03-06

Nguyen, Khanh Van (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including differential amplifier

C330S257000

Reexamination Certificate

active

10946222

ABSTRACT:
The static bias current of the output stage circuit of the class AB rail-to-rail operational amplifier is controlled by the external bias control signals. The class AB rail-to-rail operational amplifier receives the external bias control signals and controls the bias voltage of the output stage circuit, and thus the static bias current of the output stage circuit may be controlled. The class AB rail-to-rail operational amplifier may further include a frequency compensation circuit for compensating high frequency characteristics of the operational amplifier.

REFERENCES:
patent: 5311145 (1994-05-01), Huijsing et al.
patent: 5734297 (1998-03-01), Huijsing et al.
patent: 6150883 (2000-11-01), Ivanov
patent: 6188269 (2001-02-01), Hauser
patent: 6657495 (2003-12-01), Ivanov et al.
patent: 2005/0040889 (2005-02-01), Tsuchi
patent: 94-23027 (1994-10-01), None
patent: 01-39335 (2001-05-01), None

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