Operational amplifier

Details Operational amplifier Operational amplifier

1989-01-23

1990-10-16

Mottola, Steven

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330255, 330257, H03F 345

Patent

active

049638343

ABSTRACT:
An operational amplifier comprises a differential input stage, first and second folded cascode stages connected to the differential input stage, and first and second output inverting amplifiers. The first output inverting amplifier is driven by the output of the first folded cascode stage, and the second output inverting amplifier is driven through a current mirror by the output of the second folded cascode stage, such that a push pull output stage is provided in the operational amplifier. As a result, a driving performance is much improved in regard to a capacitive load, and a range of an output voltage can be expanded equally to a power supply voltage.

REFERENCES:
patent: 4829266 (1989-05-01), Pernici et al.
"High-Frequency CMOS Switched-Capacitor . . . Applications", 1983 IEEE International Solid-State Circuits Conference, p. 314.
D. Ribner et al., "Design Techniques for Cascoded . . . Range", IEEE Journal of Solid-State Circuits, vol. SC-19, No. 6, Dec. 1984, pp. 919-925.

Affiliated with

Also associated with

Rating

Operational amplifier does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Operational amplifier, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Operational amplifier will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-851983