How to decide the bias current in designing CML latch ,

[pavan5720]

I am Desigining a CML d LATCH IN 0.18um technology Cadence Virtuoso , how to decide the bias current and the regenrative time

 

[yuvan]

Hi, the bias currents are generally decided by the regenerative time. The differential current ~ gmrp --> reduce the regenerative time incr bias currents & during small signal differential regenerative voltage -->gm*rp*t/cp

 

[pavan5720]

If say the swing is 0.4v , capacitance c is 0.5p , let the regenrative time is 0.05n second , as Q=i*t, Q=c*Vswing, so I=C*vSwing/Treg , I tried doing this but regeneration is not working , corect me if i am wrong