ISO7831

• Signaling Rate: Up to 100 Mbps
• Wide Supply Range: 2.25 V to 5.5 V
• 2.25 V to 5.5 V Level Translation
• Wide Temperature Range: –55°C to 125°C
• Low Power Consumption, Typical 1.7 mA per
  Channel at 1 Mbps
• Low Propagation Delay: 11 ns Typical
  (5-V Supplies)
• Industry leading CMTI (min): ±100 kV/µs
• Robust Electromagnetic Compatibility (EMC)
• System-Level ESD, EFT, and Surge Immunity
• Low Emissions
• Isolation Barrier Life: > 40 Years
• SOIC-16 Wide Body (DW) and Extra-Wide Body
  (DWW) Package Options
• Safety-Related Certifications:
  • 8000 V_PK Reinforced Isolation per DIN V VDE
    V 0884-10 (VDE V 0884-10):2006-12
  • 5.7 kV_RMS Isolation for 1 Minute per UL 1577
  • CSA Component Acceptance Notice 5A, IEC
    60950-1 and IEC 60601-1 End Equipment
    Standards
  • CQC Certification per GB4943.1-2011
  • TUV Certification per EN 61010-1 and EN
    60950-1
  • All DW Package Certifications Complete;
    DWW Package Certifications Complete per
    UL, VDE, TUV and Planned for CSA and CQC

The ISO7831x device is a high-performance, 3-channel digital isolator with 8000-V_PK isolation voltage. This device has reinforced isolation certifications according to VDE, CSA, TUV and CQC. The isolator provides high electromagnetic immunity and low emissions at low power consumption, while isolating CMOS or LVCMOS digital I/Os.

Each isolation channel has a logic input and output buffer separated by silicon dioxide (SiO₂) insulation barrier. This device comes with enable pins which can be used to put the respective outputs in high impedance for multi-master driving applications and to reduce power consumption. The ISO7831x device has two forward and one reverse-direction channels. If the input power or signal is lost, the default output is high for the ISO7831 device and low for the ISO7831F device. See Device Functional Modes for further details.

Used in conjunction with isolated power supplies, this device helps prevent noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. Through innovative chip design and layout techniques, electromagnetic compatibility of ISO7831x has been significantly enhanced to ease system-level ESD, EFT, surge, and emissions compliance. ISO7831x is available in a 16-pin SOIC wide-body (DW) and extra-wide body (DWW) packages.