{HEAD ~ Apparatus} are provided for converting {TAIL ~ a discrete time analog signal} to a continuous time analog signal 
are provided for converting
{ HEAD ~ Apparatus } are provided for converting { TAIL ~ a discrete time analog signal } to a continuous time analog signal
HEAD HEAD HEAD HEAD HEAD REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH