EL5287C - Preliminary
EL5287C - Preliminary
Dual and Window 4ns High-Speed Comparators
V
SD
is the digital supply voltage from V
SD
to ground
I
SD
is the digital supply current per comparator
I
SD
strongly depends on the input switching frequency.
Please refer to the performance curve to choose the input
driving frequency. Having obtained the power dissipa-
tion, the maximum junction temperature can be
determined as follows:
T
JMAX
= T
MAX
+
Θ
JA
×
P
DISS
of the range set by V
REFH
and V
REFL
, the input in range
is low.
V
REFH
+
-
OUTH
Input In
Range
V
IN
+
-
V
REFL
OUTL
where:
T
MAX
is the maximum ambient temperature
θ
JA
is the thermal resistance of the package
Window Detector
If V
IN
is in the range of V
REFL
< V
IN
< V
REFH
, both out-
puts go high and the input in range is high. If V
IN
is out
9
ELANTEC [ ELANTEC SEMICONDUCTOR ]
