Abstract: A digital-to-analog converter is provided which compensates for relative errors among weighting elements used for D/A conversion. The converter includes a decoder, a rotator, and a weighting section. The rotator receives decoded signals from a decoder to produce rotated output signals for activating or deactivating a plurality of weighting elements, respectively, included in the weighting section. The rotated output signals assure that the same number of weighting elements are activated in each of a plurality of sub-periods of time constituting a main period of time of the D/A conversion and that each of the plurality of weighting elements is activated the same number of times during the whole main period.

Abstract: An inverter device is provided which comprises an inverter including a pair of transistors, and first and second delay circuits. The first and second delay circuits are connected to respective inputs of the pair of transistors so as to cause the transistors of the pair to switch with a greater time difference, thereby reducing noise due to switching operations in the inverter.