High Speed, Robust EMC Reinforced Dual-Channel Digital Isolator - ISO7721

ISO7721 (ACTIVE)

High Speed, Robust EMC Reinforced Dual-Channel Digital Isolator

 

Description

The ISO772x devices are high-performance, dual-channel digital isolators with 5000 VRMS (DW package) and 3000 VRMS (D package) isolation ratings per UL 1577. These devices are also certified by VDE, TUV, CSA, and CQC.

The ISO772x devices provide 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 a silicon dioxide (SiO2) insulation barrier. The ISO7720 device has both channels in the same direction while the ISO7721 device has both channels in the opposite direction. In the event of input power or signal loss, the default output is high for devices without suffix F and low for devices with suffix F. See the Device Functional Modes section for further details.

Used in conjunction with isolated power supplies, these devices help 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, the electromagnetic compatibility of the ISO772x devices has been significantly enhanced to ease system-level ESD, EFT, surge, and emissions compliance. The ISO772x family of devices is available in 16-pin SOIC wide-body (DW) and 8-pin SOIC narrow-body (D) packages.

Features

  • 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
  • Default Output High and Low Options
  • 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)
  • High CMTI: ±100 kV/µs Typical
  • Robust Electromagnetic Compatibility (EMC)
    • System-Level ESD, EFT, and Surge Immunity
    • Low Emissions
  • Isolation Barrier Life: >40 Years
  • Wide-SOIC (DW-16) and Narrow-SOIC (D-8) Package Options
  • Safety-Related Certifications:
    • VDE Reinforced Insulation according to DIN V
      VDE V 0884-10 (VDE V 0884-10):2006-12
    • 5000 VRMS (DW) and 3000 VRMS (D) Isolation Rating 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 according to EN 60950-1 and EN 61010-1
    • VDE, UL, CSA, and TUV Certifications for DW Package Complete; All Other Certifications Planned

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Parametrics Compare all products in Digital Isolators

 
Integrated Isolated Power
Number of Channels (#)
Forward/Reverse Channels
Isolation Rating (Vrms)
Surge Voltage Rating (Vpk)
Data Rate (Max) (Mbps)
Propagation Delay (Typ) (ns)
Default Output
VCC (Min) (V)
VCC (Max) (V)
Rating
Operating Temperature Range (C)
Pin/Package
ISO7721 ISO7721F ISO7710 ISO7720
No    No    No    No   
2    2    1    2   
1/1    1/1    1/0    2/0   
5000
3000   
5000
3000   
5000
3000   
5000
3000   
8000
5000   
8000
5000   
8000
5000   
8000
5000   
100    100    100    100   
10.7    10.7    10.7    10.7   
High    Low    High    High   
2.25    2.25    2.25    2.25   
5.5    5.5    5    5.5   
Catalog    Catalog    Catalog    Catalog   
-55 to 125    -55 to 125    -55 to 125    -55 to 125   
16SOIC
8SOIC   
16SOIC
8SOIC   
16SOIC
8SOIC   
16SOIC
8SOIC