ardnut:
If I'm working out how fast I can sample a obviously need to take the worst case figure, where did you get 104?
13/125000*1000000 ...13 clock cycles / 125000 clock cycles per second * 1000000 microseconds per second.
Is that an empirical result?
No.
What is the accuracy of the result when running async ?
The same as running synchronously. There is not a special asynchronous converter.
I doubt that they would have provided separate clocks and means to shut down the rest of the chip if it did not make a significant difference.
The point is to reduce the effect of noise not increase the accuracy.
Now the ADC is 10b with 2LSB of error in quiet mode. That's 9 bit accuracy ADC. If I run async what am I going to get?
The same.