The ISO776x devices
are high-performance, six-channel digital isolators with 5000-VRMS (DW
package) and 3000-VRMS (DBQ package) isolation ratings per UL 1577. This
family of devices is also certified according to VDE, CSA, TUV and CQC.
The ISO776x 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 logic-output
buffer separated by a silicon dioxide (SiO2) insulation barrier. The
ISO776x family of devices is
available in all possible pin configurations such that all six channels are in the same direction,
or one, two, or three channels are in reverse direction while the remaining channels are in forward
direction. If the input power or signal is lost, 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, this family of devices 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 ISO776x family of devices has been significantly enhanced to ease
system-level ESD, EFT, surge, and emissions compliance. The ISO776x family of devices is available
in 16-pin SOIC and SSOP packages.
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