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. 06, 2018
Filed:
Dec. 20, 2017
Xilinx, Inc., San Jose, CA (US);
XILINX, INC., San Jose, CA (US);
Abstract
An example method of trimming a voltage reference in an integrated circuit (IC) includes at a first temperature, sequencing through a first plurality of trim codes for a reference circuit of the voltage reference configured to generate a proportional-to-temperature current and a corresponding first control voltage, and a complementary-to-temperature current and a corresponding second control voltage. The method further includes measuring a voltage output of the voltage reference for each of the first plurality of trim codes to obtain first voltage output values. The method further includes at a second temperature, sequencing through a second plurality of trim codes for the reference circuit. The method further includes measuring the voltage output of the voltage reference for each of the second plurality of trim codes to obtain second voltage output values. The method further includes selecting a trim code for the reference circuit based on the first voltage output values and the second voltage output values.