ISO7420FCC Low-Power 2/0 Dual Channel Digital Isolator with Fail-Safe Output Low and Noise Filter |

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Low-Power 2/0 Dual Channel Digital Isolator with Fail-Safe Output Low and Noise Filter


Recommended alternative parts

  • ISO7720  - The device has the SAME FUNCTIONALITY and PINOUT as the compared device but is NOT an exact equivalent.   Pin-to-pin upgrade with higher isolation, stronger CMTI, wider supply range, and better immunity and robustness


ISO7420FCC provides galvanic isolation up to 2500 VRMS for 1 minute per UL and 4242 VPK per VDE. This device has two isolated channels. Each channel has a logic input and output buffer separated by a silicon dioxide (SiO2) insulation barrier. Used in conjunction with isolated power supplies, this device prevents noise currents on a data bus or other circuit from entering the local ground and interfering with or damaging sensitive circuitry. The suffix F indicates low-output option in fail-safe conditions (see ). This device has integrated noise filter for harsh environments where short noise pulses may be present at the device input pins.

ISO7420FCC has TTL input thresholds and operates from 2.7-V to 5.5-V supplies. All inputs are 5-V tolerant when supplied from a 2.7-V or 3.3-V supply.


  • Signaling Rate: 50 Mbps (5-V Supplies)
  • Output is Low in Default Mode
  • Integrated Noise Filter on the Input Pins
  • Low Power Consumption: Typical ICC per Channel
    • 1.8 mA at 1 Mbps, 3.9 mA at 25 Mbps (5-V Supplies)
    • 1.4 mA at 1 Mbps, 2.6 mA at 25 Mbps (3.3-V Supplies)
  • Low Propagation Delay: 20 ns Typical (5-V Supplies)
  • Channel-to-Channel Output Skew: 2 ns Maximum
  • 3.3-V and 5-V Level Translation
  • Wide TA Range Specified: –40°C to 125°C
  • 60-KV/μs Transient Immunity, Typical (5-V Supplies)
  • Low Emissions
  • Isolation Barrier Life: > 25 Years
  • Operates from 2.7-V to 5.5-V Supply Levels
  • Narrow Body SOIC-8 Package
  • Safety and Regulatory Approvals
    • 4242 VPK Isolation per DIN V VDE V 0884-10 (VDE V0884-10):2006-12
    • 2.5 KVRMS Isolation for 1 Minute per UL 1577
    • CSA Component Acceptance Notice 5A, IEC 60950-1 and IEC 61010-1 End Equipment Standards
    • GB4943.1-2011 CQC Certification

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Part number Order Integrated isolated power Number of channels (#) Forward/reverse channels Isolation rating (Vrms) Surge voltage capability (Vpk) Data rate (Max) (Mbps) Current consumption per channel (DC) (Typ) (mA) Current consumption per channel (1 Mbps) (Typ) (mA) Propagation delay (Typ) (ns) Default output VCC (Min) (V) VCC (Max) (V) Rating Operating temperature range (C)
ISO7420FCC Order now No     2     2/0     2500     4000     50     1.35     1.35     20     Low     3.3     5     Catalog     -40 to 125    
ISO7420 Order now No     2     2/0     2500     4000     1     1.1     1.1     9     High     3.3     5     Catalog     -40 to 125    
ISO7420FE Order now No     2     2/0     2500     4000     50     1.4     1.4     7     Low     3.3     5     Catalog     -40 to 125