The CA-IS383x devices are high-performance triple-channel  digital isolators with precise timing characteristics and low  power consumption. The CA-IS383x devices provide high  electromagnetic immunity and low emissions, while  isolating CMOS digital I/Os. All device versions have Schmitt  trigger input for high noise immunity. Each isolation channel  consists of a transmitter and a receiver separated by silicon  dioxide (SiO₂) insulation barrier. The CA-IS3830 device has  all three channels in the same direction with output enable  on output side (B side) and the CA-IS3831 device has two forward and one reverse-direction channels with output  enable on both sides. All devices have fail-safe mode option.  If the input power or signal is lost, default output is low for  devices with suffix L and high for devices with suffix H. CA-IS383x devices has high insulation capability to handle  noise and surge on a data bus or other circuits from entering  the local ground and interfering with or damaging sensitive  circuitry. High CMTI ability promises the correct  transmission of digital signal. The CA-IS383x devices are  available in 16-pin wide body SOIC packages. All products  support insulation withstanding up to 5.7kVrms.