GENERAL DESCRIPTION
The ADuM640x1 devices are quad-channel digital isolators with isoPower®, an integrated, isolated dc-to-dc converter. Based on the Analog Devices, Inc., iCoupler® technology, the dc-to-dc converter provides up to 500 mW of regulated, isolated power at either 5.0 V or 3.3 V from a 5.0 V input supply, or 3.3 V from a 3.3 V supply at the power levels shown in Table 1. This eliminates the need for a separate, isolated dc-to-dc converter in low power, isolated designs. The iCoupler chip scale transformer technology is used to isolate the logic signals and for the magnetic components of the dc-to-dc converter. The result is a small form factor, total isolation solution.

FEATURES
    isoPower integrated, isolated dc-to-dc converter
    Regulated 3.3 V or 5 V output
    Up to 500 mW output power
    Quad dc-to-25 Mbps (NRZ) signal isolation channels
    Schmitt trigger inputs
    16-lead SOIC package with 7.6 mm creepage
    High temperature operation: 105°C
    High common-mode transient immunity: >25 kV/μs
    Safety and regulatory approvals (pending)
        UL recognition
            5000 V rms for 1 minute per UL1577
        CSA Component Acceptance Notice #5A
            IEC 60950-1: 600 V rms (reinforced)
            IEC 60601-1: 250 V rms (reinforced)
        VDE certificate of conformity
            DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
            VIORM = 560 V peak

APPLICATIONS
    RS-232/RS-422/RS-485 transceivers
    Medical isolation
    AC/dc power supply startup bias and gate drives
    Isolated sensor interface