1 Features
• Signaling Rate: Up to 100Mbps
• Wide Supply Range: 2.25V to 5.5V
• 2.25V to 5.5V Level Translation
• Wide Temperature Range: –55°C to 125°C
• Low Power Consumption, Typical 1.8mA per
Channel at 1Mbps
• Low Propagation Delay: 11ns Typical
(5V Supplies)
• Industry leading CMTI(Min): ±100kV/μs
• Robust Electromagnetic Compatibility (EMC)
• System-Level ESD, EFT, and Surge Immunity
• Low Emissions
• Isolation Barrier Life: > 25 Years
• SOIC-16 Wide Body (DW) and Extra-Wide Body
(DWW) Package Options
• Safety and Regulatory Approvals:
– 8000VPK Reinforced Isolation per DIN V VDE V
0884-10 (VDE V 0884-10):2006-12
– 5.7kVRMS Isolation for 1 minute per UL 1577
– CSA Component Acceptance Notice 5A, IEC
60950-1 and IEC 60601-1 End Equipment
Standards
– CQC Certification per GB4943.1-2011
– TUV Certification per EN 61010-1 and EN
60950-1
– All DW Package Certifications Complete; DWW
Package Certifications Complete per UL, TUV
and Planned for VDE, CSA, and CQC

2 Applications
• Industrial Automation
• Motor Control
• Power Supplies
• Solar Inverters
• Medical Equipment
• Hybrid Electric Vehicles

3 Description
The ISO7821 is a high-performance, dual-channel
digital isolator with 8000VPK isolation voltage. This
device has reinforced isolation certifications according
to VDE, CSA, CQC, and TUV. The isolator provides
high electromagnetic immunity and low emissions
at low power consumption, while isolating CMOS
or LVCMOS digital I/Os. Each isolation channel
has a logic input and output buffer separated by
silicon dioxide (SiO2) insulation barrier. ISO7821 has
one forward and one reverse-direction channel. If
the input power or signal is lost, default output is
'high' for the ISO7821 and 'low' for the ISO7821F
device. Used in conjunction with isolated power
supplies, this device prevents noise currents on a
data bus or other circuits from entering the local
ground and interfering with or damaging sensitive
circuitry. Through innovative chip design and layout
techniques, electromagnetic compatibility of ISO7821
has been significantly enhanced to ease systemlevel
ESD, EFT, Surge and Emissions compliance.
ISO7821 is available in 16-pin SOIC wide-body (DW)
and extra-wide body (DWW) packages. The DWW
package option comes with enable pins which can be
used to put the respective outputs in high impedance
for multi-controller driving applications and to reduce
power consumption.