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  _____     ______    ______    _____             
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/ //---`'   -| ||-     | ||    | ||__      /   || 
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 \_____||  /_____//  /__//     |_____||    \__ || 
  `----`   `-----`   `--`      `-----`      -|_|| 
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Text this: CMOS differential logic circuits for low power and high-speed applications