The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 05, 1997
Filed:
Sep. 25, 1995
Kenneth W Murray, Tucson, AZ (US);
Burr-Brown Corporation, Tucson, AZ (US);
Abstract
A compensation circuit in a high speed integrated circuit operational amplifier that includes an input stage having first and second outputs connected to emitters of first and second PNP cascode transistors. A base of an NPN cascode transistor is coupled to a collector of the first PNP cascode transistor. A resistor circuit is connected between the collectors of the second PNP cascode transistor and the NPN cascode transistor. First and second inputs of a diamond follower output buffer are connected to the collectors of the NPN cascode transistor and second PNP cascode transistor, respectively. A compensation circuit includes first and second compensation capacitors connected to the collectors of the NPN cascode transistor and the second PNP cascode transistor, respectively, to prevent instability of an output voltage of the diamond follower buffer circuit.