John Giordano

ADC resolution on the DEMOJM board

Discussion created by John Giordano on Feb 8, 2011
Latest reply on Feb 10, 2011 by Cristian Martinez

I have an accelerometer attached to the ADC chip on my DEMOJM board.

The ADC chip can be set for 8, 10, or 12 bit resolution.

However, when I set it for 12-bit resolution, I only see 11 bit values.

I would expect  to see raw A/D counts go from 0 - 4095.

Instead, I see the counts go from 0 - 2047.

Anybody have any ideas?