How sigma delta DAC convert the number of bits?

[nhkch]

Hi, i'm really confuse with sigma delta DAC, i'm wondering how it works to convert a n bit of digital input into m bit for exampler 16 bits to 1 bit? how can this be done without affect the accurancy?

 

[hanspi]

I guess you'll have to read something about Sigma-Delta. I suggest you read this:

https://www.beis.de/Elektronik/DeltaSigma/DeltaSigma.html

If your confusion persists afterwards, you can always ask more questions.

Slainte!
H