This conversion is accomplished while substantially isolating the second device from {HEAD ~ the effects} of the first device that could influence {TAIL ~ the outputs} of the second device that represent the converted logic level voltages 
This conversion is accomplished while substantially isolating the second device from { HEAD ~ the effects } of the first device that could influence { TAIL ~ the outputs } of the second device that represent the converted logic level voltages
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH