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Analog Comparators output in Tiva launch Pad

ISHAN SHAH1
Intellectual 370 points
Other Parts Discussed in Thread: LM339

Hi all,

Can anyone please let me know what would the output voltage of analog comparator output pin Co0, when it is "1". I skimmed over data sheet but could not find any mention of it.

So would it be 3.3V or some other voltage.? What exactly it would be?

Regards,

Ishan

  • 0
    Guru 117855 points

    Just yanked the scope from my desk area to the lab - but we have used Co0 and found 3V0 < Co0 < 3V3.  (this while toggling @ speed)  We route this pin directly into an MCU, PWM-Fault input - to cause current limiting.

    You may be asking about the requirement for pull-up R (mandatory for past, LM339/similar) - we provided a 06-03 pad but found the output to assert w/out that R. 

    Note that our device is LX4F - we noted this output across multiple devices/boards...