In electronics , a digital-to-analog converter ( DAC , D/A , D2A or D-to-A ) is a function that converts digital data ( usually binary ) into an analog signal ( current , voltage , or electric charge ) .
In electronics , a digital-to-analog converter ( abbreviated DAC or D-to-A ) is a device for converting a digital ( usually binary ) code to an analog signal ( current , voltage or electric charge ) .