1 Features
• 100 Mbps data rate
• Robust isolation barrier:
– >30-Year projected lifetime at 1.5 kVRMS
working voltage
– Up to 5000 VRMS Isolation Rating
– Up to 12.8 kV surge capability
– ±100 kV/μs Typical CMTI
• Wide supply range: 2.25 V to 5.5 V
• 2.25-V to 5.5-V level translation
• Default output High (ISO772x) and Low
(ISO772xF) Options
• Wide temperature range: –55°C to +125°C
• Low power consumption, typical 1.7 mA per
channel at 1 Mbps
• Low propagation delay: 11 ns typical
• Robust electromagnetic compatibility (EMC)
– System-Level ESD, EFT, and surge immunity
– ±8 kV IEC 61000-4-2 contact discharge
protection across isolation barrier
– Low emissions
• Wide-SOIC (DW-16, DWV-8) and Narrow-SOIC
(D-8) package options
• Automotive Version Available: ISO772x-Q1
• Safety-Related Certifications
– DIN EN IEC 60747-17 (VDE 0884-17)
– UL 1577 component recognition program
– IEC 61010-1, IEC 62368-1, IEC 60601-1, and
GB 4943.1 certifications

2 Applications
• Industrial automation
• Motor control
• Power supplies
• Solar inverters
• Medical equipment

3 Description
The ISO772x devices are high-performance, dualchannel
digital isolators with 5000 VRMS (DW and
DWV packages) and 3000 VRMS (D package) isolation
ratings per UL 1577. This family includes devices with
reinforced insulation ratings according to VDE, CSA,
TUV and CQC.The ISO7721B device is designed for
applications that require basic insulation ratings only.
The ISO772x devices provide 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 a double capacitive
silicon dioxide (SiO2) insulation barrier. The ISO7720
device has both channels in the same direction while
the ISO7721 device has both channels in the opposite
direction. In the event of input power or signal loss,
the default output is high for devices without suffix
F and low for devices with suffix F. See the Device
Functional Modes section for further details.
Used in conjunction with isolated power supplies,
these devices help prevent noise currents on data
buses, such as RS-485, RS-232, and CAN , from
damaging sensitive circuitry. Through innovative chip
design and layout techniques, the electromagnetic
compatibility of the ISO772x devices has been
significantly enhanced to ease system-level ESD,
EFT, surge, and emissions compliance. The ISO772x
family of devices is available in 16-pin SOIC widebody
(DW), 8-pin SOIC wide-body (DWV), and 8-pin
SOIC narrow-body (D) packages.