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:
Oct. 20, 1987
Filed:
Jun. 30, 1983
Applicant:
Inventors:
Robert S Wrathall, Tempe, AZ (US);
Judy L Sutor, Phoenix, AZ (US);
Assignee:
Motorola Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03F / ; H03F / ;
U.S. Cl.
CPC ...
330253 ; 330277 ;
Abstract
A CMOS operational amplifier comprises an input stage for receiving first and second potentials, a bias stage and first and second gain stages. In order to improve the frequency response, capacitors are employed to provide positive feedback. The biasing stage maintains the output in its active region, and avoids the necessity of external biasing.