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