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Topic: ADC internal voltage reference for DUE ? (Read 2948 times) previous topic - next topic

mantoui

The UNO has 1.1v internal voltage reference for ADC, and the ARM-based Maple has a 1.2v interval voltage for ADC (ADC1, channel 17).  Reading the SAM3X8E reference manual, I don't think the DUE has an internal voltage reference for ADC. Is this true?

The DUE's ADC does have a gain that can be configured to trade precision for range.

Grumpy_Mike

#1
Oct 23, 2012, 06:22 pm Last Edit: Oct 23, 2012, 06:33 pm by Grumpy_Mike Reason: 1
Yes that is right it only has a pin Vref input.

Have you read the application note on the A/D, document number 11106A
www.atmel.com/Images/doc11106.pdf
That tells you all about it.

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