wherein {HEAD ~ the comparator} compares {TAIL ~ the reference voltage} with the single ended signal to generate the comparison output signal 
compares
wherein { HEAD ~ the comparator } compares { TAIL ~ the reference voltage } with the single ended signal to generate the comparison output signal
OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH