Digital-to-analog converting apparatus

摘要: A digital-to-analog converting apparatus having a plurality of stages arranged in series. Each stage includes latch for storing one the bits digital input signal. resistance, resistances being connected One end resistance first is to reference voltage equal mid-point range analog output signal be produced. Constant current sources, value each stage, are and through switch constant sink. The controlled by outputs so that flows direction or other, increasing decreasing applied next series depending upon whether stored bit logic 1 0. values currents selected drop across one-half previous stage. produced at last an corresponding latches.