LT6118
4
6118f
For more information www.linear.com/LT6118
elecTrical characTerisTics
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
+
= 12V, V
PULLUP
= V
+
, V
LE
= 2.7V, R
IN
= 100Ω,
R
OUT
= R1 + R2 = 10k, gain = 100, R
C
= 25.5k, C
L
= C
LC
= 2pF, unless otherwise noted. (See Figure 2)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Reference and Comparator
V
TH(R)
(Note 9)
Rising Input Threshold Voltage V
+
= 2.7V to 60V
l
395 400 405 mV
V
HYS
V
HYS
= V
TH(R)
– V
TH(F)
V
+
= 2.7V to 60V 3 10 15 mV
Comparator Input Bias Current V
INC
= 0V, V
+
= 60V
l
–50 nA
V
OL
Output Low Voltage I
OUTC
= 500µA, V
+
= 2.7V
l
60 150
220
mV
mV
High to Low Propagation Delay 5mV Overdrive
100mV Overdrive
3
0.5
µs
µs
Output Fall Time 0.08 µs
t
RESET
Reset Time 0.5 µs
t
RPW
Minimum LE Reset Pulse Width
l
2 µs
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: Input and output pins have ESD diodes connected to ground. The
SENSEHI and SENSELO pins have additional current handling capability
specified as SENSEHI, SENSELO Input Current.
Note 3: The LT6118I is guaranteed to meet specified performance from
–40°C to 85°C. LT6118H is guaranteed to meet specified performance
from –40°C to 125°C.
Note 4: Supply current is specified with the comparator output high. When
the comparator output goes low the supply current will increase by 75µA
typically.
Note 5: The full-scale input sense voltage and the maximum output
current must be considered to achieve the specified performance.
Note 6: Supply voltage and input common mode voltage are varied while
amplifier input offset voltage is monitored.
Note 7: The specified gain error does not include the effect of external
resistors R
IN
and R
OUT
. Although gain error is only guaranteed between
12V and 60V, similar performance is expected for V
+
< 12V, as well.
Note 8: Refer to SENSELO, SENSEHI Range in the Applications
Information section for more information.
Note 9: The input threshold voltage which causes the output voltage of the
comparator to transition from high to low is specified. The input voltage
which causes the comparator output to transition from low to high is
the magnitude of the difference between the specified threshold and the
hysteresis.
Supply Current vs Supply Voltage Start-Up Supply Current
Input Offset Voltage
vs Temperature
SUPPLY VOLTAGE (V)
0
0
SUPPLY CURRENT (µA)
100
200
300
400
10
20 30 40
50 60
500
0V
V
+
5V/DIV
0µA
I
S
6118 G02
TEMPERATURE (°C)
–40
INPUT OFFSET VOLTAGE (µV)
300
200
100
0
–200
–100
–300
80
–10 20 50
11065–25 5 35 95
5 TYPICAL UNITS
Performance characteristics taken at T
A
= 25°C,
V
+
= 12V, V
PULLUP
= V
+
, V
LE
= 2.7V, R
IN
= 100Ω, R
OUT
= R1 + R2 = 10k, gain = 100, R
C
= 25.5k, C
L
= C
LC
= 2pF, unless otherwise noted.
(See Figure 2)
Typical perForMance characTerisTics
