The forward signal arrangement generates the continuous time analog output signal at {HEAD ~ the output node} based on a difference between the discrete time analog signal and {TAIL ~ the discrete time feedback signal} 
The forward signal arrangement generates the continuous time analog output signal at { HEAD ~ the output node } based on a difference between the discrete time analog signal and { TAIL ~ the discrete time feedback signal }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL