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:
Jul. 07, 1992
Filed:
Nov. 08, 1991
Barry Harvey, Los Altos, CA (US);
Joseph Piernet, San Jose, CA (US);
Elantec, Milpitas, CA (US);
Abstract
A current compensation circuit for a comparator includes a pair of switching transistors which supply input bias current to their corresponding comparator input transistors, a pair of current to voltage conversion means which use collector current from the comparator input transistors to turn on and off the appropriate switching transistor when its corresponding comparator input transistor is on, a transistor to generate a negative replica of the input bias current flowing in the comparator input, and a current mirror which is programmed by the replica of the uncompensated input bias current to produce a compensated input bias current to the switching transistors.