{HEAD ~ The control signal} is processed by {TAIL ~ a FSM} that individually turns on or off the transistors within the parallel branch until the DUT impedance value falls within the desired range 
is processed by
{ HEAD ~ The control signal } is processed by { TAIL ~ a FSM } that individually turns on or off the transistors within the parallel branch until the DUT impedance value falls within the desired range
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL 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