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Digital-to-analog converter and successive approximation type analog-to-digital converter including the same

Image Number 17 for United States Patent #8035542.

A digital-to-analog converter generates a voltage from power supply and ground voltages, generates upper and lower limit reference voltages for a reference width which regards the generated voltage as an intermediate potential, converts a change in an analog input signal with respect to the upper and lower limit reference voltages into a digital code, and performs a control in order to achieve a sample and hold of the analog input signal.

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