The ISO733x 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 three isolated channels comprised of logic input
and output buffers separated by a silicon dioxide (SiO2) insulation
The ISO7330 has all three channels in the same direction
while ISO7331 has two channels in forward and one channel in
reverse direction. See the section for further details.
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 ISO733x family of devices has integrated
noise filter for harsh industrial environment where short noise pulses may be present at the device
input pins. The ISO733x family of devices has TTL input thresholds
and operates from 3-V to 5.5-V supply levels. Through innovative chip design and layout techniques,
electromagnetic compatibility of the ISO733x family of devices has
been significantly enhanced to enable system-level ESD, EFT, Surge and Emissions compliance.
For all available packages, see the orderable addendum at the
end of the datasheet.
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