Dual-channel digital isolator 2DIB0400F in DSO-8 narrow body package Infineon ISOFACE™ dual-channel digital isolator 2DIB0400F (with 2 forward channels) provides robust isolation for high-voltage applications. With a wide supply voltage range, CMOS input thresholds and default output state low, it is the perfect fit for use in SMPS applications such as LV DCDC brick.