Working of sigma-delta ADC converter

[adi0803199]

I know the working of an ADC,but what is the advantage of using a Sigma-Delta Converter and what are its practical advantages.
Thanks and Regards in Advance.

 

[HTA]

Sigma-Delta-Converter can reach higher accurracy at lower cost, but are slower then other methods. How its build and how its works can be found here: https://www.maximintegrated.com/app-notes/index.mvp/id/1870 .

Enjoy your designe work!