Dual-channel digital isolator 2DIB1400F in DSO-8 narrow body package Infineon’s ISOFACE™ dual-channel digital isolator 2DIB1400F (with 1 forward channel and 1 reverse channel) 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 high-side floating drive applications with feedback.