ISO7821 - High-Immunity, 5.7kVRMS Reinforced Dual-Channel 1/1 Digital Isolator, 100Mbps

The ISO7821 is ahigh-performance, dual-channel digital isolator with 8000 V_PK isolationvoltage. This device has reinforced isolation certifications according to VDE, CSA, CQC, and TUV.The isolator provides high electromagnetic immunity and low emissions at low power consumption,while isolating CMOS or LVCMOS digital I/O’s. Each isolation channel has a logic input and outputbuffer separated by silicon dioxide (SiO₂) insulation barrier.ISO7821 has one forward and one reverse-direction channel. If theinput power or signal is lost, default output is ’high’ for the ISO7821 and ’low’ for the ISO7821F device. Used in conjunction with isolated power supplies, this device prevents noisecurrents on a data bus or other circuits from entering the local ground and interfering with ordamaging sensitive circuitry. Through innovative chip design and layout techniques, electromagneticcompatibility of ISO7821 has beensignificantly enhanced to ease system-level ESD, EFT, Surge and Emissions compliance. ISO7821 is available in 16-pin SOIC wide-body (DW)and extra-wide body (DWW) packages. The DWW package option comeswith enable pins which can be used to put the respective outputs in high impedance for multi-masterdriving applications and to reduce power consumption.

• 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 1.8 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: > 25 Years
• SOIC-16 Wide Body (DW) and Extra-Wide Body (DWW) Package Options
• Safety and Regulatory Approvals:
  • 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, TUV and Planned for VDE, CSA, and CQC

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