Digital-to-analog converter

摘要

A digital-to-analog converter employs current drive circuits connected to an output voltage terminal. At least one of the current drive circuits includes a current division circuit that splits current from a first power source into a plurality of current paths in response to at least a first bias voltage. A current dissipation circuit is between one of the paths and a second power supply source, and a current switching circuit selectably connects another of the paths to the voltage terminal, which is connected to the second power source through a voltage establishing device. The switching circuit responds to one of the digital bits.