Circuit structure and related method to indicate voltage polarity via comparator

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United States of America Patent

PATENT NO 12052030
APP PUB NO 20230421168A1
SERIAL NO

17809035

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
GLOBALFOUNDRIES U S INC400 STONEBREAK ROAD EXTENSION MALTA NY 12020

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Iqbal, Asif Bangalore, IN 48 541
Naik, Sanmitra Bharat Bangalore, IN 1 1

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