Analog-to-digital conversion circuit and method having quick tracking mechanism

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United States of America Patent

PATENT NO 12126353
APP PUB NO 20230188152A1
SERIAL NO

17945136

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Abstract

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The present invention discloses an analog-to-digital conversion circuit having quick tracking mechanism is provided. A positive and a negative capacitor arrays receive a positive and a negative input voltages and output a positive and a negative output voltages. A first and a second comparators performs comparison thereon respectively according to and not according to a reference voltage to generate a first and a second comparison results. A control circuit does not perform level-shifting when a difference between the positive and the negative output voltages is not within a predetermined range. The control circuit assigns the positive and the negative capacitor arrays a voltage up-tracking direction and a voltage down-tracking direction respectively to switch a capacitor enabling combination with digital codes according to the second comparison result, and outputs the digital codes as a digital output signal when the positive and the negative output voltages equal.

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Patent Owner(s)

Patent OwnerAddress
REALTEK SEMICONDUCTOR CORPORATIONNO 2 INNOVATION RD II HSINCHU SCIENCE PARK HSINCHU 30076

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hong, Wei-Cian Hsinchu, TW 13 2

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