Operational amplifier with feed-forward compensation circuit

Details Operational amplifier with feed-forward compensation circuit Operational amplifier with feed-forward compensation circuit

1981-04-28

1983-10-18

Mullins, James B.

Amplifiers

With semiconductor amplifying device

Including differential amplifier

330151, 330255, 330257, H03F 345

Patent

active

044108575

ABSTRACT:
An amplifying circuit comprises a differential amplifier receiving input signals and having first and second output connections to which the input and output connections of a current amplifier respectively connect. A transistor receives signals at its gate from the second output connection of the differential amplifier and has a capacitor connected between its input and output electrodes. A feed-forward circuit, responsive to signals at the first output connection of the differential amplifier, develops a feed-forward signal which is applied to the output electrode of the transistor and poled so as to reinforce the signals thereat. The feed-forward signals tend to cancel signals conducted through the capacitor at high frequencies where the transistor exhibits reduced gain.

REFERENCES:
patent: 4132958 (1979-01-01), Addis et al.
patent: 4208635 (1980-06-01), Fazakerly et al.
patent: 4227157 (1980-10-01), Davies et al.
patent: 4267517 (1981-05-01), Iida et al.
B. J. Hosticka, "Dynamic CMOS Amplifiers", IEEE Journal of Solid-State Circuits, vol. SC-15, No. 5, Oct. 1980, pp. 887-894.
Y. P. Tsividis et al, "An Integrated NMOS Operational Amplifier with Internal Compensation", IEEE Journal of Solid-State Circuits, vol. SC-11, No. 6, Dec. 1976, pp. 748-753.
D.A.T.A., Edition 25, Dec. 1980, pp. 185 and 541.

Affiliated with

Also associated with

Rating

Operational amplifier with feed-forward compensation circuit 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 with feed-forward compensation circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Operational amplifier with feed-forward compensation circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1292057