Datasheet Maxim MAX9693

19-1789; Rev 2; 1/12 Single/Dual, Ultra-Fast, ECL-Output
Comparators with Latch Enable
Features
o 1.2ns Propagation Delay The MAX9691/MAX9692/MAX9693 are ultra-fast ECL
comparators capable of very short propagation delays.
Their design maintains the excellent DC matching characteristics normally found only in slower comparators.
The MAX9691/MAX9692/MAX9693 have differential
inputs and complementary outputs that are fully compatible with ECL-logic levels. Output current levels are
capable of driving 50Ω terminated transmission lines.
The ultra-fast operation makes signal processing possible at frequencies in excess of 600MHz. o 100ps Propagation Delay Skew
o 150ps Dispersion
o 0.5ns Latch Setup Time
o 0.5ns Latch-Enable Pulse Width
o Available in µMAX and QSOP Packages
o +5V, -5.2V Power Supplies Ordering Information The MAX9692/MAX9693 feature a latch-enable (LE)
function that allows the comparator to be used in a
sample-hold mode. When LE is ECL high, the comparator functions normally. When LE is driven ECL low, the
outputs are forced to an unambiguous ECL-logic state,
dependent on the input conditions at the time of the
latch input transition. If the latch-enable function is not
used on either of the two comparators, the appropriate
LE input must be connected to ground; the companion
LE input must be connected to a high ECL logic level. …