Area of buffer = Area of Inverter + Area of ECL_MOS
= [(Wp * Lp) + (Wn * Ln)] + [(Wp1* Lp1) +(Wp2 * Lp2) + (Wn1 * Ln1)(Wn2 * Ln2)]
= (10 * 1) um2 + (10 *1) um2 + (1 *1) um2 + (1 *1) um2 + (.3 * 1) um2 + (2.2 * 1) um2
= 24.5 um2
Total Propagation delay = (tplh + tphl)/2
= (105 + 40)ns /2
= 72.5 ns
Total Average Power Dissipation was computed by integrating over a period each circuit's instantaneous power.
(i.e., integrating the product of current vs. voltage)
Total Average Power Dissipation = (Pave of VEE source of ECL driver)+ (Pave of Vin source of ECL driver)
+ (Pave of Buffer) + (Pave of the Inverter) + (Pave of the load)
Total Average Power Dissipation = Sum of the absolute value of Integral(V*I)/T = (40.56 nWs/3us) + (33.646pWs/3us) + (4.238nWs/3us)
+ (1.458e-18Ws/3us) + (860pWs/3us)
Total Average Power Dissipation = 15.23 mW
FOM = (propagation delay (ns)) * (Average Power (mW)) * (Area (um2)
FOM = (72.5 ns)(15 mW)(24.5 um2)
FOM = 27052