The last page of the LTC2875 Data sheet (Rev A) shows a circuit for IEC Level 4 protection against surge, EFT, and ESD. 3 Questions:
- Should there also be a 120 Ohm resistor between CANH and CANL as shown on the typical circuit on page 1?
- If yes where should it be (I'm assuming between the TVS and the LTC2875.
- Is IEC Level 4 on par with RTCA DO-160 Level 4 Lightning protection?
Thank you very much,