1 Features
1• 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 ICC 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-VPK Isolation per DIN V VDE V 0884-10
and DIN EN 61010-1
– 3000-VRMS 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 VRMS for 1 minute per UL 1577 and 4242 VPK 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.