digitizer vs analog-digital converter

digitizer and analog-digital converter both are nouns.

Word	Noun	Adjective	Verb	Adverb
digitizer	Yes	No	No	No
analog-digital converter	Yes	No	No	No

As nouns, digitizer and analog-digital converter are synonyms defined as:

digitizer and analog-digital converter: device for converting analogue signals into digital signals

Other synonyms of digitizer include analog-to-digital converter, digitiser.

digitizer (noun)	analog-digital converter (noun)
device for converting analogue signals into digital signals	device for converting analogue signals into digital signals