| 摘要 |
<p>A digital/analog converter which produces an output waveform having less distortion without increasing the operating speed of the components. The D/A converter comprises a multiplying section (1), four data holding sections (2-1 to 2-4), four data selectors (3-1 to 3-4), an adding section (4), a D/A converter (5), and two integrating circuits (6-1, 6-2). Input data is multiplied by four multiplicators by the multiplying section (1), and the four multiplication results are held, as one set, in the data holding sections. The data selectors read out data held in the four data holding sections in a predetermined order and generate step function data. The adding section adds the values of the step functions outputted from the four data selectors. Furthermore, a stepwise analog voltage corresponding to the sum is generated by the D/A converter (5) and integrated twice by means of the two integrating circuits (6-1, 6-2).</p> |
