The recommended layout and routing for the MAX250CSD+ involves keeping the analog and digital grounds separate, using a solid ground plane, and minimizing the length of the input traces. It's also recommended to use a 4-layer PCB with a dedicated power plane and a dedicated ground plane.
To optimize the performance of the MAX250CSD+ in a noisy environment, use a low-pass filter at the input, add a shield around the device, and use a ferrite bead or a common-mode choke to filter out high-frequency noise. Additionally, use a low-ESR capacitor for power supply decoupling.
The maximum operating temperature range for the MAX250CSD+ is -40°C to +125°C. However, the device can be operated at a reduced temperature range of -20°C to +85°C for improved reliability.
To ensure EMC with the MAX250CSD+, use a shielded enclosure, keep the device away from high-frequency sources, and use a common-mode filter or a ferrite bead on the input lines. Additionally, use a low-pass filter on the output lines and ensure that the PCB layout is optimized for EMC.
The recommended power-up sequence for the MAX250CSD+ is to power up the device in the following order: VCC, VDD, and then the input signals. This ensures that the device is properly biased and configured before the input signals are applied.
MAX250CSD+ datasheet
by Maxim Integrated Products
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