The recommended PCB layout for the MAX280CWE+ is to use a 4-layer board with a solid ground plane, and to keep the analog and digital signals separate. Additionally, it's recommended to use a low-ESR capacitor for the VCC bypass and to place it as close as possible to the VCC pin.
To ensure the MAX280CWE+ is properly biased, make sure to provide a stable VCC supply voltage between 4.75V and 5.25V, and a logic supply voltage (V_L) between 2.7V and 5.5V. Also, ensure that the input signals are within the recommended common-mode voltage range.
The MAX280CWE+ can support data rates up to 100Mbps, but the actual data rate may be limited by the quality of the transmission line, the signal integrity, and the receiver's capability.
To troubleshoot issues with the MAX280CWE+, start by checking the power supply voltages, signal integrity, and PCB layout. Use an oscilloscope to verify the signal waveforms and check for any signs of signal distortion or noise. Also, consult the datasheet and application notes for guidance on troubleshooting common issues.
The MAX280CWE+ is a RS-485 transceiver, and it's compatible with other RS-485 devices. However, it's not compatible with other transceiver standards such as RS-232 or CAN. If you need to interface with other standards, you may need to use a different transceiver or a protocol converter.