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. 04, 1992
Filed:
Aug. 31, 1990
Marwan A Fawal, Santa Clara, CA (US);
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Abstract
A controlled voltage or current source comprises a first CMOS active voltage divider, which generates a first reference voltage at a first reference node as a first function of temperature, and a second CMOS active voltage divider, which generates a second reference voltage at a second reference node as a second function of temperature. A CMOS difference amplifier, generates the controlled voltage as a function of the difference between the first reference voltage and the second voltage reference, and of a third function of temperature. A final amplifier stage offsets changes in the source voltage. In another aspect, temperature compensated NAND and NOR gates are provided using the controlled voltage source.