The HI-8422 is a sixteen channel discrete-to-digital device. The device has eight channels designed to sense 28V/Open signals and eight channels to sense Open/Ground signals. Mixed-signal CMOS technology is used to provide superior low-power performance. The device outputs are CMOS/TTL compatible outputs and may be disabled (tri-state) using the /CE and /OE pins. The HI-8422 is offered in a small footprint 44-pin plastic Quad Flat Package (PQFP).



  • Eight independent 28V/Open sensing channels
  • Eight independent Open/Ground sensing channels.
  • 5.0V single supply operation
  • Low-power CMOS technology
  • CMOS/TTL compatible outputs
  • 44-pin plastic Quad Flat Package (PQFP)
  • Industrial & extended temperature ranges available



  • Avionics