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