The process is repeated for conversion of {HEAD ~ each bit} of {TAIL ~ the corresponding digital output word} 
of
The process is repeated for conversion of { HEAD ~ each bit } of { TAIL ~ the corresponding digital output word }
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL