can ADM3078E be powered using 5V?
The ADM3078E was designed and optimized for 3.3V power supply, and has been characterized at 3.3V only.
The device should not be operated with a 5V power supply, with 5V power the transceiver won…
The device should not be operated with a 5V power supply, with 5V power the transceiver won’t conform to all datasheet specifications. Specifications like supply current, receiver/transmitter skew, receiver input thresholds, input leakage currents, will likely operate all out of specification at 5V.
ADI has a wide select of RS-485 transceivers available for use with a 5V power supply, I've listed some options below,
For excellent EMC and timing performance up to 50 Mbps, I'd recommend the ADM3065E
The LTC2862A is a highly robust transceiver with extended common mode range and protection against faults up to 60V on the RS-485 bus
For ultra low power I would recommend something from the ADM4850 family
If you need support for up to 256 nodes, either the LTC2856 or the LTC286x (fault protected)