1 Features

• 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 Classification Level 3A
  • Device CDM Classification Level C6
• Signaling Rate: 25 Mbps
• Integrated Noise Filter on the Inputs
• Default Output High and Low Options
• Low Power Consumption: Typical I_CC per Channel at 1 Mbps:
  • ISO7320-Q1: 1.2 mA (5-V Supplies),
    0.9 mA (3.3-V Supplies)
  • ISO7321-Q1: 1.7 mA (5-V Supplies),
    1.2 mA (3.3-V Supplies)
• Low Propagation Delay: 33 ns
  Typical (5-V Supplies)
• 3.3-V and 5-V Level Translation
• 65-kV/μs Transient Immunity,
  Typical (5-V Supplies)
• Robust Electromagnetic Compatibility (EMC)
  • System-level ESD, EFT, and Surge Immunity
  • Low Emissions
• Isolation Barrier Life: > 25 Years
• Operates from 3.3-V and 5-V Supplies
• Narrow Body SOIC-8 Package
• Safety and Regulatory Approvals:
  • 4242-V_PK Isolation per DIN V VDE V 0884-10 and DIN EN 61010-1
  • 3000-V_RMS Isolation for 1 minute per UL 1577
  • CSA Component Acceptance Notice 5A, IEC 60950-1 and IEC 61010-1 Standards
  • Planned CQC Certification per GB4943.1-2011

2 Applications

• Opto-Coupler Replacement in:
  • Industrial FieldBus
    • ProfiBus
    • ModBus
    • DeviceNet™ Data Buses
  • Servo Control Interface
  • Motor Control
  • Power Supplies
  • Battery Packs

3 Description

The ISO732x-Q1 family of devices provides galvanic isolation up to 3000 V_RMS for 1 minute per UL 1577 and 4242 V_PK per VDE V 0884-10. These devices have two isolated channels comprised of logic input and output buffers separated by silicon dioxide (SiO₂) insulation barriers.

The ISO7320-Q1 has both channels in the same direction while ISO7321-Q1 has the two channels in opposite direction. In case of input power or signal loss, the default output is low for orderable part numbers with suffix F and high for orderable part numbers without suffix F. See Device Functional Modes for more information. Used in conjunction with isolated power supplies, these devices prevent noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. The ISO732x-Q1 family of devices has integrated noise filters for harsh industrial environment where short noise pulses may be present at the device input pins. The ISO732x-Q1 family of devices has TTL input thresholds and operate from 3-V to 5.5-V supply levels.

Through innovative chip design and layout techniques, electromagnetic compatibility of the ISO732x-Q1 family of devices has been significantly enhanced to enable system-level ESD, EFT, Surge and Emissions compliance.

1. For all available packages, see the orderable addendum at the end of the datasheet.

Simplified Schematic

V_CCI and GNDI are supply and ground connections respectively for the input channels.

V_CCO and GNDO are supply and ground connections respectively for the output channels.

4 Revision History