Analog-to-digital connecter using multi-gate field effect transistors

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United States of America Patent

PATENT NO 5331323
SERIAL NO

08057782

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Abstract

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The present invention is directed to an analog-to-digital (A/D) converter realized by a small circuit. The A/D converter according to this invention generates a discrete output voltage having several levels in response to an input analog voltage. It includes a number of field effect transistors (FETs), each of which corresponds to an output voltage level and has multiple gates for receiving outputs of higher-order FETs, the input voltage and a negative offset voltage. The A/D converter also includes a voltage divider for generating the offset voltage for each FET and a plurality of inverters corresponding to each FET for outputting a constant positive voltage in response to a negative output of the corresponding FET and for outputting a zero voltage responsive to a positive output voltage of the corresponding FET.

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Patent Owner(s)

Patent OwnerAddress
SHARP CORPORATIONOSAKA JAPAN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Yamamoto, Makoto Tokyo, JP 297 3169

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