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Question, i.MX28 LRADC

Question asked by AVNET JAPAN FAE (team share account) on Aug 12, 2015
Latest reply on Aug 13, 2015 by Artur Petukhov

Hi Team,

 

I would like to ask about LRADC of i.MX28.

From the description in i.MX28 datasheet, the power source of LRADC seems to be VDDA. Right?

And the datasheet says that the maximum voltage of LDRADC is 1.85V.

(1)

Is it possible for LRADC to operate correctly for 1.85V input to LRADC, in the situation that VDDA is lower than 1.85V?

(2)

The reference voltage, the internal Bandgap reference, for the ADC is always 1.85V?

 

Thanks,

Miyamoto

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