Digital-to-analog converter.

摘要

A digital-to-analog converter (18) having a ladder resistor portion (20) for generating a plurality of quantization signals of predetermined values based on reference signals of predetermined values based on reference signals (VDD, VSS) and a quantization switch portion (22) for selectively outputting one of the quantization signals in accordance with a digital input value (Y) is provided. The ladder resistor portion is coupled to at lest one resistor (R2, R3) for generating a signal whose value corresponds to a desired signal level of a signal to be added (SYNC). A switch means (23) is further provided for supplying the signal of the value corresponding to the desired signal level to an output of the switch portion (22) in response to a timing signal synchronized with the signal to be added. <IMAGE>