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:
Nov. 08, 1994
Filed:
Oct. 13, 1992
San L Lin, San Jose, CA (US);
Winbond Electronics North America Corporation, San Jose, CA (US);
Abstract
A hysteresis comparator is disclosed which utilizes an on-chip bias generator, and incorporates circuitry which renders the decision voltages V.sub.P and V.sub.N insensitive to semiconductor process variations, independent of any critical reference voltages, and proportional to absolute temperature. Current sources coupled to positive and negative bias voltages are utilized to generate precise voltages across resistors to set the magnitude of V.sub.P and V.sub.N, which magnitudes are set by the ratios of like components existing within the same integrated circuit. Hysteresis comparators with precise and repeatable decision voltages can be implemented while consuming a minimum amount of semiconductor area.