Wideband operational amplifier having a plurality of feedback lo

Details Wideband operational amplifier having a plurality of feedback lo Wideband operational amplifier having a plurality of feedback lo

1998-04-06

2000-04-18

Lee, Benny

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330294, H03F 345

Patent

active

060520272

ABSTRACT:
An amplifier having error correction and including an output stage containing output transistors being connected to the amplifier output, and an output error correction stage containing a first high open loop gain amplifier which includes one or more transistors being the first high open loop gain amplifier transistor or transistors, an output of which is connected to an input of the output stage, the amplifier including at least two local negative feedback paths, a first local negative feedback path being between an output of the output stage and an input of the first high open loop gain amplifier and a second local negative feedback path being between an output of the first high open loop gain amplifier and an input of the first high open loop gain amplifier.

REFERENCES:
patent: 4179665 (1979-12-01), Gregorian
patent: 5371479 (1994-12-01), Hagerty
Distortion in power amplifiers #1, Electronics World & Wireless World, Aug. 1993, pp. 630-634.
Distortion in power amplifiers #2, Electronics World & Wireless World, Sep. 1993, pp. 730-736.
Distortion in power amplifiers #3, Electronics World & Wireless World, Oct. 1993, pp. 818-823.
Distortion in power amplifiers #4, Electronics World & Wireless World, Nov. 1993, pp. 926-934.
Distortion in power amplifiers #5, Electronics World & Wireless World, Dec. 1993, pp. 1009-1014.
Distortion in power amplifiers #6, Electronics World & Wireless World, Jan. 1994, pp. 41-45.

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