MAX485CSA datasheet by Maxim Integrated Products

MAX485CSA Frequently Asked Questions (FAQs)

• What is the maximum data rate that the MAX485CSA can support?
  The MAX485CSA can support data rates up to 2.5 Mbps.
• Can the MAX485CSA be used in a multi-point application?
  Yes, the MAX485CSA can be used in a multi-point application, but it requires an external biasing network to ensure that the receivers are properly biased.
• How do I ensure that the MAX485CSA is properly terminated?
  The MAX485CSA requires a termination resistor (R_T) at the receiving end to match the characteristic impedance of the transmission line. The value of R_T depends on the transmission line impedance, typically 120 ohms for a standard RS-485 bus.
• What is the maximum cable length that can be used with the MAX485CSA?
  The maximum cable length depends on the data rate and the transmission line characteristics. As a general rule, the maximum cable length is approximately 4000 feet (1219 meters) at 9600 bps and 1000 feet (305 meters) at 115.2 kbps.
• Can the MAX485CSA be used in a half-duplex or full-duplex configuration?
  The MAX485CSA can be used in either half-duplex or full-duplex configurations, depending on the application requirements.