The ISO773x-Q1 devices
are high-performance, triple-channel digital isolators with 5000 VRMS (DW
package) and 2500 VRMS (DBQ package) isolation ratings per UL
This family of devices has reinforced insulation ratings according to VDE, CSA, TUV and
The ISO773x-Q1 family
of devices 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 a silicon dioxide (SiO2) insulation barrier. This device comes
with enable pins which can be used to put the respective outputs in high impedance for multi-master
driving applications and to reduce power consumption. The ISO7730-Q1 device has all three
channels in the same direction and the ISO7731-Q1 device has two forward and one reverse-direction channel. If the
input power or signal is lost, the default output is for
devices without suffix F and for devices with suffix F. See
the section for further details.
Used in conjunction with isolated power supplies, this device helps prevent 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 the ISO773x-Q1
device has been significantly enhanced to ease system-level ESD, EFT, surge, and emissions
compliance. The ISO773x-Q1
family of devices is available in 16-pin wide-SOIC and QSOP packages.
For all available packages, see the orderable addendum at the
end of the datasheet.
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