DIGITAL/ANALOG CONVERTER AND ACTIVE MATRIX LIQUID CRYSTAL DISPLAY DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a digital/analog converter that can enhance the conversion speed of two-stage nonlinear digital/analog conversion. SOLUTION: The digital/analog converter is provided with a 1st converter stage for a 1st digital/analog conversion for m-sets of the most significant bits of a bit input signal, an advance charging circuit, that charges an output load in advance up to an advance charging voltage according to the result of 1st conversion, and a 2nd converter stage that conducts a 2nd digital/analog conversion for n-sets of the least significant bits of a k-bit input signal.