Tool/software:
We're looking at using the INA1650's XLR example circuit (8.2.1 / page 22 from the datasheet), but are worried about audio being fed to the device when it's in an unpowered state.
Here's an excerpt from the datasheet:
7.3.3 (electrical overstresses) mentions keeping the current through the device's protection diodes less than 10mA and shows the following image:
We are however unable to find a mention of the value of the resistance from IN+/IN- to the diodes.
Our question: is the 8.2.1 application circuit safe to be used as shown due to the inherent current limiting of those resistors, or is an additional strategy required? We are worried adding series resistors would deteriorate the CMRR performance.