General-purpose, quad-channel, 3/1 digital isolator

The ISO674x devices are high-performance, quad-channel digital isolators ideal for

cost-sensitive applications requiring up to 5000 VRMS isolation ratings per UL

1577. These devices are also certified by VDE, TUV, CSA, and CQC.

The ISO674x 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

TI’s double capacitive silicon dioxide (SiO2) insulation barrier. These devices

come with enable pins which can be used to put the respective outputs in high impedance for

multi-master driving applications. The ISO6740 device has all four

channels in the same direction,

ISO6741 device has three forward and one reverse-direction channels, and ISO6742 device has two forward and two reverse-direction channels. 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 Device Functional Modes section

for further details.