The delay through the differential section D1 is directly related to {TAIL ~ the magnitudes} of the resistances provided by resistors R2 and R3 and to the gate widths of {HEAD ~ the transistors} Q7 and Q8 
The delay through the differential section D1 is directly related to { TAIL ~ the magnitudes } of the resistances provided by resistors R2 and R3 and to the gate widths of { HEAD ~ the transistors } Q7 and Q8
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH