A 4-layer PCB with a solid ground plane and a separate power plane is recommended. Keep the analog and digital sections separate, and use a ferrite bead or a 10uF capacitor to filter the power supply.
Use a reliable communication protocol like SPI or I2C, and ensure proper signal termination and impedance matching. Also, use a buffer or a repeater if the distance between the devices is significant.
The recommended operating temperature range is -40°C to 85°C. However, the device can tolerate temperatures up to 125°C for short periods during manufacturing or testing.
Use ESD protection devices like TVS diodes or ESD arrays on the input/output lines. Also, ensure that the PCB design includes ESD protection features like guard rings and ESD-safe layout practices.
Power up the device in the following sequence: VCC, AVCC, and then the digital supply (DVCC). Ensure that the power supplies are stable and within the recommended voltage range before applying the clock signal.