Maxim provides a layout and routing guide in their application note AN-1149, which recommends keeping the input and output traces short and away from each other, using a solid ground plane, and minimizing the number of vias.
The MAX4852ETE+T requires a termination resistor (RT) at the far end of the transmission line to match the characteristic impedance of the line. The value of RT depends on the transmission line impedance, typically 120Ω for a standard RS-485 bus.
The maximum cable length depends on the data rate, cable characteristics, and noise environment. As a general guideline, the MAX4852ETE+T can support cable lengths up to 4000 feet (1219 meters) at a data rate of 250kbps, but this may vary depending on the specific application.
The MAX4852ETE+T has built-in protection against hot swapping and insertion/removal of cables, including overvoltage protection, short-circuit protection, and ESD protection. However, it's still recommended to follow proper hot-swapping procedures and use external protection devices if necessary.
Yes, the MAX4852ETE+T is designed for multi-point or multi-drop bus configurations, allowing up to 32 transceivers on the same bus. However, the maximum number of nodes and cable length may be limited by the specific application and noise environment.
MAX4852ETE+T datasheet
by Maxim Integrated Products
