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:
Jun. 20, 1989
Filed:
May. 29, 1987
Eugene R Bukowski, Cary, NC (US);
Charles R Hoffman, Raleigh, NC (US);
International Business Machines Corp., Armonk, NY (US);
Abstract
A precision gain circuit arrangement for amplifying analog type signals is fabricated on an integrated chip with digital devices in a CMOS process. The circuit arrangement includes a high gain operational amplifier with a series connected pair of FET devices setting a reference voltage (V.sub.ref) at the inverting input of the operational amplifier and a feedback circuit including a parallel connected pair of FET devices and a biasing FET for said pair set the gain of said circuit arrangement.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile