Enhanced RS-485 interface with isolation circuit

Published:2011/7/7 7:21:00 Author:Fiona | Keyword: Enhanced interface, with isolation | From:SeekIC

ADM2483 is enhanced RS-485 transceiver with isolation, the internal block diagram is shown as Figure 1,which includes a three-channel isolator,a differential drive with three-state output and a differential receiver with three-state input.The receiver with 1 / 8 unit load inputs impedance that allows more than 256 transceivers to access bus, the highest transfer rate is 500Kbps. Logical end is compatible with 3V/5V power supply, the bus terminal has 5V power supply.Compared with other RS-485 interface chips,ADM2483 integrates the magnetic isolation technology,it only requires an external DC/DC power supply.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Amplifier_Circuit/Enhanced_RS_485_interface_with_isolation_circuit.html

Print this Page | Comments | Reading(3)