IS it mandatory to terminate the N channel to GND using AC coupling cap in Single ended mode?
When using External Bias supply, the internal bias can be terminated to Caps right? we are connecting the O/P amp to the i/p of the ADC directly


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IS it mandatory to terminate the N channel to GND using AC coupling cap in Single ended mode?
When using External Bias supply, the internal bias can be terminated to Caps right? we are connecting the O/P amp to the i/p of the ADC directly


Hi,
See the following snippet from the datasheet:

The terminal must be grounded in single ended mode. The cap to GND is only mandatory in AC coupling mode.
If MICBIAS is unused it can be left floating and disabled in software.
Best regards,
Jeff McPherson