Any electronic system used to convert analog signals to digital (or vice versa)

plural of digital-to-analog converter

(electronics) A device that converts a finite resolution digital signal to an infinite resolution analog signal.

A lens screwed onto the front of an existing camera lens to give a wider field of view.

plural of wide-angle converter

(electronics) A device for digitizing analog signals of very high bandwidth, effectively slowing down the original signal in time (or compressing its bandwidth) before it can be digitized by a slow electronic ADC.

plural of time stretch analog-to-digital converter