FEATURES
1. Built-in bias resistors enable the configuration of an inverter circuit without
   connecting external input resistors(see equivalent circuit).
2. The bias resistors consist of thin-film resistors with complete isolation to
   allow positive biasing of the input.They also have the advantage of almost
   completely eliminating parasitic effects.
3. Only the on/off conditions need to be set for operation, making device
   design easy.