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