| 摘要 |
A D/A converter can convert M digital signals to M analog signals simultaneously in accordance with used conditions, where M is an integer greater than one. The D/A converter includes a current matrix cell, N weighting cells, and a control circuit, where N is an integer equal to or greater than M. The control circuit divides the current matrix cell in accordance with the number M of digital signals to be D/A converted, and supplies the current matrix cell after the division with specified bits constituting the M digital signals. The control circuit also supplies only the M weighting cells out of the N weighting cells with the remaining bits of the individual M digital signals. The M analog signals are obtained by adding the M currents the current matrix cell produces and the M currents the M weighting cells produce.
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