an output driver, with a differential output connected to an external precision resistor, that receives the driving current and generates {HEAD ~ a differential signal} at the differential output utilizing the driving current according to {TAIL ~ a data signal} 
an output driver , with a differential output connected to an external precision resistor , that receives the driving current and generates { HEAD ~ a differential signal } at the differential output utilizing the driving current according to { TAIL ~ a data signal }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH 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 TAIL TAIL TAIL TAIL TAIL TAIL TAIL