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. 30, 2024
Filed:
Jun. 27, 2022
Globalfoundries U.s. Inc., Malta, NY (US);
Asif Iqbal, Bangalore, IN;
Sanmitra Bharat Naik, Bangalore, IN;
GlobalFoundries U.S. Inc., Malta, NY (US);
Abstract
Embodiments of the disclosure provide a circuit structure and method to indicate a differential voltage polarity using a comparator. The circuit structure includes a digital-to-analog converter (DAC) coupled to a positive differential voltage, a negative differential voltage, and a reference voltage. The DAC generates an output based on the positive differential voltage, the negative differential voltage, and the reference voltage. A comparator has a first input coupled to one of the DAC output and the positive differential voltage, and a second input coupled to one of the reference voltage and the negative differential voltage. A multiplexer array is coupled to the comparator and transmits one of: the positive differential voltage and the negative differential voltage to the comparator, causing the comparator to output a differential voltage polarity; and the DAC output and the reference voltage, causing the comparator to output an approximated bit for the DAC output.