{HEAD ~ The digital processing circuitry} converts {TAIL ~ the output} of the comparator 113 to a digital signal, averages the digital signal, and generates a multi bit digital bias signal 
{ HEAD ~ The digital processing circuitry } converts { TAIL ~ the output } of the comparator 113 to a digital signal , averages the digital signal , and generates a multi bit digital bias signal
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH