Hi Experts,
I have a customer who share an interesting topic about this RF amplifier.
The datasheet states the absolute maximum input voltage is VS- to VS+. This implies that the device may be damaged if any input signal is applied to the LMH6401 when it is not powered (VS- = 0V, VS+ = 0V) and if any current flows into the device when not powered. Is this true? Usually the limit is a diode drop from the supply voltages due to ESD diodes. If it's not true, then what are the actual absolute maximum input voltage limits? There application is approx +10dBm input power when the device is unpowered, which seems fine to me but technically exceeds absolute maximum ratings so I have to ask. I'm not sure how I would protect against this, is there a device with Ioff protection or something I can add in series?
Thank you for supporting.
Regards,
Archie