INA168: Power supply is unclear and need examples

Tool/software:

Hi,

my customer asked about the power supply of INA168 (and OPA333) in app note SBOA198A:

Questions

Could you please give me a clear example of what a correct/complete design must look like including the power supply?

In Lightning events, the voltage becomes negative (-100V at the load).

• What current is measured?
• Does the output remain "stable" and return when the voltage is >0V?
• If my "switch" is closed (no connection to the battery), a CM voltage of -100V is set
  • That is correct?
  • If the device suitable for this or there is a workaround?

Can I use the circuit from the INA168 datasheet according to Chapter 8.2.6 if I do not supply V+ from a GPIO but want to build it floating like in Figure 2 from the app note.

Can I use the circuit from the INA168 data sheet according to Chapter 8.2.5 if I do not want to supply V+ with 5V but want to set up floating like in Figure 2 from the app note.

• What is the negative CM voltage that sets in?

Best regards