| 摘要 |
<p>Disclosed is an A/D conversion integrated circuit which includes a plurality of A/D converters capable of reducing the propagation of noise caused by capacitive coupling from conductors transmitting digital signals. At each A/D converter (13), an input (15) receives an analog signal (SA) to be converted from analog to digital. An output (17) provides at least part of a digital signal (SD) of a predetermined number of bits representing the analog signal (SA). A sub A/D conversion circuit (19) receives the analog signal (SA) and generates a signal (SDP) representing one or a plurality of bit values among the digital signal (SD), and provides the signal (SDP) to the output (17). An input (21a) of a control circuit (21) is connected to an output (19a) of the sub A/D conversion circuit (19), and provides the control signal (SCONT) corresponding to the signal (SDP). The control signal (SCONT) comprises a waveform including the transition from the voltage level L1 to the voltage level L2, and the transition from the voltage level L2 to the voltage level L1.</p> |
