analog-to-digital converter vs digitiser

analog-to-digital converter and digitiser both are nouns.

Word	Noun	Adjective	Verb	Adverb
analog-to-digital converter	Yes	No	No	No
digitiser	Yes	No	No	No

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

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

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

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