GENERAL DESCRIPTION
The ADM2485 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/TIA/EIA RS-485-A-98 and ISO 8482:1987(E).

FEATURES
    Half-duplex, isolated RS-485 transceiver
    Integrated oscillator driver for external transformer
    PROFIBUS® compliant
    Complies with ANSI/TIA/EIA RS-485-A-98 and ISO 8482:1987(E)
    Data rate: 16 Mbps
    5 V or 3.3 V operation (VDD1)
    50 nodes on bus
    High common-mode transient immunity: >25 kV/μs
    Isolated DE OUT status output
    Thermal shutdown protection
    Safety and regulatory approvals
        UL recognition: 2500 V rms for 1 minute per UL 1577
        VDE Certificate of Conformity
            DIN V VDE V 0884-10 (VDE V 0884-10):2006-12 Reinforced insulation, 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