The transfer characteristics of a noninverting buffer in the ecl family are described by the following equations:
v0 = {0, vi < _0.85 v
2.6 [1 -1 /{1 + exp(vi - 1)/vt)}], 0.85v < _ vi < _1.2v
2.6v, vi > _ 1.2v
1. calculate the logic leveles and noise margins (vol, vol(max), voh, voh(min), vil, vih, nml, nmh). use vt = 26mv.
note: since gain is positive in the transition regions for noninverting circuits, use slope = 1 at logic transitions.