GENERAL DESCRIPTION
The ADM2486 differential bus transceiver is an integrated, galvanically isolated component designed for bidirectional data communication on multipoint bus transmission lines. It is designed for balanced transmission lines and complies with ANSI EIA/TIA-485-A and ISO 8482: 1987(E).

FEATURES
Half-duplex, isolated RS-485 transceiver PROFIBUS®-compliant
ANSI EIA/TIA 485-A and ISO 8482: 1987(E) compliant 20 Mbps data rate 5 V or 3 V operation (VDD1)
High common-mode transient immunity: >25 kV/μs
Isolated DE status output Receiver open-circuit, fail-safe design
Thermal shutdown protection 50 nodes on bus
Safety and regulatory approvals
   UL recognition—2500 Vrmsfor 1 minute per UL 1577
   CSA Component Acceptance Notice #5A
   VDE Certificate of Conformity
      DIN EN 60747-5-2 (VDE 0884 Part 2): 2003-01
      DIN EN 60950 (VDE 0805): 2001-12; EN 60950: 2000
VIORM= 560 V peak
Operating temperature range: −40°C to +85°C
Wide body, 16-lead SOIC package

APPLICATIONS
Isolated RS-485/RS-422 interfaces
PROFIBUS networks
Industrial field networks
Multipoint data transmission systems