AMC7836: Negative supply required for negative ADC sensing?

Hi Jade,

I've been instructed by design, that for the ADC bipolar inputs, it should be possible to read from the specified bipolar range with only a positive analog supply of 12V.  However, please be aware that the DACs will require the negative supply for bipolar operation.

Therefore, if using bipolar ranges for both, the DACs and ADCs it is recommended that you provide a positive and negative supply.

I'll additionally verify this question on an EVM in the lab and will provide my results later today or tomorrow.

Best Regards,

Matt

Hi Matt,

DAC output always positive level in this case.

Only one ADC monitoring -5V without negative supply.

Please let me know it is possible or not.

Thank you.

Best Regards,

Jade