In some embodiments {HEAD ~ the digital bias signal} is generated using {TAIL ~ an up down counter}, which counts up when the comparator output is high and counts down when the comparator is low 
is generated using
In some embodiments { HEAD ~ the digital bias signal } is generated using { TAIL ~ an up down counter } , which counts up when the comparator output is high and counts down when the comparator is low
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH