ISO7421A-Q1 - Automotive Catalog Dual Channel, 1/1, 1Mbps Digital Isolator

The ISO7421A-Q1 provides galvanic isolation up to 2.5 kVrms for 1 minute per UL. This digital isolator has two isolated channels with bidirectional channel configuration. Each isolation channel has a logic input and output buffer separated by a silicon dioxide (SiO₂) insulation barrier. Used in conjunction with isolated power supplies, these devices prevent noise currents on a data bus or other circuit from entering the local ground and interfering with or damaging sensitive circuitry.

The devices have TTL input thresholds and require two supply voltages from 3 V to 5.5 V, or any combination. All inputs are 5-V tolerant when supplied from a 3-V supply.

• Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following Results:
  • Device Temperature Grade 1: –40°C to 125°C
    Ambient Operating Temperature Range
  • Device HBM ESD Classification Level H3A
  • Device CDM ESD Classification Level C5
• High Signaling Rate: 50 Mbps
• Low Power Consumption
• Low Propagation Delay – 9 ns (Typical)
• Low Skew – 300 ps (Typical)
• 4-kVpeak Maximum Isolation, 2.5 kVrms per UL 1577,
  IEC/VDE and CSA Approved, IEC 60950-1, IEC 61010-1
  End Equipment Standards Approved. All Approvals Pending.
• 50 kV/µs Transient Immunity (Typical)
• Over 25-Year Isolation Integrity at Rated Voltage
• Operates From 3-V to 5.5-V Supply and Logic Levels