STM32F3 SDADC ENOB

roger · ‎2014-01-31

Posted on January 31, 2014 at 14:45

Hi I have following question:

On the datasheet page 113 there is a note for calculate

the ENOB: ENOB = SINAD / 6.02 - 0.292

Now I'm wondering because the right formula is

ENOB = SINAD - 1.76dB / 6.02 !!!

Why do you note the formula with generate better ENOB as the other correct formula ???

Kind regards

Roger

raptorhal2 · ‎2014-02-01

Posted on February 01, 2014 at 18:17

The right formula is ENOB = (SINAD - 1.76)/6.02.

Which is the same as ENOB = (SINAD/6.02) - 0.292.

Brackets provide the appropriate clarity.

Cheers, Hal

roger · ‎2014-02-03

Posted on February 03, 2014 at 09:44

Ohh Thank You and

Sorry for my stupit question !

Kind regards

Roger