HI-8570 / HI-8571

Two logic inputs of HI-8570 and HI-8571  control a differential voltage between the output pins producing a +10 volt One, a -10 volt Zero, and a 0 volt Null.

The CMOS/TTL control inputs are translated to ARINC specified amplitudes. A logic input is provided to control the slope of the differential output signal. Timing is set by on-chip resistor and capacitor and tested to be within ARINC requirements. The HI-85870 has 37.5 ohms in series with each line driver output. The HI-8571 provides the option to bypass part of the output resistance so that series protection circuits can add their resistances.

The HI-8570 or the HI-8571 along with the HI-8588 or HI-8591 line receiver offer the smallest options available to get on and off the ARINC bus.