LT1719
4
1719fa
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
I
S
Positive Output Stage Supply Current +V
S
= V
CC
= 5V, V
EE
= –5V
l
4.2 8 mA
(LT1719S8 Only) V
S
= V
CC
= 3V, V
EE
= 0V
l
3.3 6 mA
I
+
Supply Current (LT1719S6) V
+
= 5V
l
4.6 9 mA
V
+
= 3V
l
4.2 7 mA
I
SHDN5
Shutdown Pin Current +V
S
or V
+
= 5V
l
–300 –110 –30 μA
I
SHDN3
Shutdown Pin Current +V
S
or V
+
= 3V
l
–200 –80 –20 μA
I
CCS
I
SS
I
EES
I
+
S
I
CCSO
I
SSO
I
EEO
I
+
O
Disabled Supply Currents (LT1719S8)
(LT1719S8)
(LT1719S8)
(LT1719S6)
(LT1719S8)
(LT1719S8)
(LT1719S8)
(LT1719S6)
+V
S
= 6V, V
CC
= 5V, V
EE
= –5V
V
SHDN
= +V
S
– 0.5V
l
l
l –30
0.2
7
–0.2
30
50
μA
μA
μA
V
+
= 6V, V
SHDN
= +V
S
– 0.5V
l
780 μA
+V
S
= 6V, V
CC
= 5V, V
EE
= –5V
Shutdown Pin Open
l
l
l –20
0.1
0.1
0.1
20
20
μA
μA
μA
V
+
= 6V, Shutdown Pin Open
l
0.2 40 μA
ELECTRICAL CHARACTERISTICS
The l denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. V
CM
= 1V, V
SHDN
= 0.5V, V
OVERDRIVE
= 20mV, C
OUT
= 10pF and for the
LT1719S8 V
CC
= +V
S
= 5V and V
EE
= –5V, for the LT1719S6 V
+
= 5V, V
–
= 0V, unless otherwise specifi ed.
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: If one input is within these common mode limits, the other input
can go outside the common mode limits and the output will be valid.
Note 3: The LT1719 comparator includes internal hysteresis. The trip
points are the input voltage needed to change the output state in each
direction. The offset voltage is defi ned as the average of V
TRIP
+
and V
TRIP
–
,
while the hysteresis voltage is the difference of these two.
Note 4: The LT1719S8 common mode rejection ratio is measured with
V
CC
= 5V, V
EE
= –5V and is defi ned as the change in offset voltage measured
from V
CM
= –5.1V to V
CM
= 3.8V, divided by 8.9V.
Note 5: The LT1719S6 common mode rejection ratio is measured with
V
+
= 5V and is defi ned as the change in offset voltage measured from
V
CM
= –0.1V to V
CM
= 3.8V, divided by 3.9V.
Note 6: The LT1719S8 power supply rejection ratio is measured with
V
CM
= 1V and is defi ned as the worst of: the change in offset voltage from
V
EE
= –5.5V to V
EE
= 0V divided by 5.5V, or the change in offset voltage
from V
CC
= +V
S
= 2.7V to V
CC
= +V
S
= 6V (with V
EE
= 0V) divided by 3.3V.
Note 7: The LT1719S6 power supply rejection ratio is measured with
V
CM
= 1V and is defi ned as the change in offset voltage measured from
V
+
= 2.7V to V
+
= 6V, divided by 3.3V.
Note 8: Because of internal hysteresis, there is no small-signal region in
which to measure gain. Proper operation of internal circuity is ensured by
measuring V
OH
and V
OL
with only 10mV of overdrive.
Note 9: Propagation delay measurements made with 100mV steps.
Overdrive is measured relative to V
TRIP
±
.
Note 10: t
PD
cannot be measured in automatic handling equipment with
low values of overdrive. The LT1719 is 100% tested with a 100mV step
and 20mV overdrive. Correlation tests have shown that t
PD
limits can be
guaranteed with this test, if additional DC tests are performed to guarantee
that all internal bias conditions are correct.
Note 11: Propagation Delay Skew is defi ned as:
t
SKEW
= |t
PDLH
– t
PDHL
|
