| 摘要 |
<p>A D/A converter includes a first resistor (NT1) network including K resistors (R11-R1K) each having a resistance, where K is an integer, and a second resistor network (NT2) including L resistors (R31-R3L) connected in series where L is an integer. The sum of resistances of the L resistors is approximately equal to the resistance of each of the K resistors. The D/A converter further includes a first switching part (S11-S1K, S21-S2K, S41-S4K, S51-S5K), coupled to the K resistors, for selecting (K-1) resistors among the K resistors in accordance with a digital input signal and for forming a series circuit including the (K-1) resistors and the second resistor network connected in series, first and second voltages being applied to respective ends of the series circuit. Furthermore, the D/A converter includes a second switching part (S31-S3L), coupled to the second series circuit, for connecting one of the L resistors to an output terminal of the D/A converter. <IMAGE></p> |
