Rail-to-rail operational amplifier and method for making same

Details Rail-to-rail operational amplifier and method for making same Rail-to-rail operational amplifier and method for making same

1997-03-20

1999-03-09

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330253, 330261, H03F 345

Patent

active

058806385

ABSTRACT:
Disclosed is an operational amplifier having a positive input terminal, a negative input terminal, an output terminal, a positive power supply input and a negative power supply input. The operational amplifier includes a transistor input pair being coupled to the positive input terminal and the negative input terminal. A first charge pump being coupled to positive supply circuitry contained within the operational amplifier. The first charge pump being configured to operate the positive supply circuitry contained within the operational amplifier at an enhanced positive power supply. The operational amplifier further includes a second charge pump being coupled to negative supply circuitry contained within the operational amplifier. The second charge pump being configured to operate the negative circuitry contained within the operational amplifier at an enhanced negative power supply. Accordingly, the transistor output pair provides an essentially full rail-to-rail output.

REFERENCES:
patent: 4241313 (1980-12-01), Takehara
patent: 5412309 (1995-05-01), Ueunten

Affiliated with

Also associated with

Rating

Rail-to-rail operational amplifier and method for making same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rail-to-rail operational amplifier and method for making same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rail-to-rail operational amplifier and method for making same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1325300