MAX485CPA datasheet by Maxim Integrated Products

MAX485CPA Frequently Asked Questions (FAQs)

• What is the maximum data rate that the MAX485CPA can support?
  The MAX485CPA can support data rates up to 2.5 Mbps.
• Can the MAX485CPA be used in a multi-point application?
  Yes, the MAX485CPA can be used in a multi-point application, but it requires an external circuit to ensure that only one transmitter is active at a time.
• How do I ensure that the MAX485CPA is properly terminated?
  To ensure proper termination, a 120-ohm resistor should be connected between the R and T pins, and a 560-ohm resistor should be connected between the R pin and ground.
• What is the maximum cable length that can be used with the MAX485CPA?
  The maximum cable length that can be used with the MAX485CPA depends on the data rate and the type of cable used. As a general rule, the maximum cable length is 4000 feet at 9600 bps and 1000 feet at 115.2 kbps.
• Can the MAX485CPA be used in a noisy environment?
  Yes, the MAX485CPA has built-in noise immunity and can operate in noisy environments. It also has a common-mode range of ±7V, which helps to reject noise.