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Automotive Catalog Dual Channel, 1/1, 1Mbps Digital Isolator


Package | PIN: D | 8
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $3.25
10-24 $2.93
25-99 $2.73
100-249 $2.39
250-499 $2.24
500-749 $1.90
750-999 $1.61
1000+ $1.53


  • 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

Texas Instruments  ISO7421AQDRQ1

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.