Datasheet
LTC1726
4
1726fd
For more information www.linear.com/LTC1726
Typical perForMance characTerisTics
V
CC25
Threshold Voltage
vs Temperature (LTC1726-2.5) I
VCC5
vs Temperature (LTC1726-5) I
VCC3
vs Temperature (LTC1726-5)
V
CC5
Threshold Voltage
vs Temperature (LTC1726-5)
V
CC3
Threshold Voltage
vs Temperature
V
CCA
Threshold Voltage
vs Temperature
TEMPERATURE (°C)
–60
4.600
V
CC5
THRESHOLD VOLTAGE, V
RT5
(V)
4.625
4.650
4.675
4.700
–20 20
60
100
1726 G01
4.725
4.750
–40 0
40
80
TEMPERATURE (°C)
–60
V
CC25
THRESHOLD VOLTAGE, V
RT25
(V)
0 40 100
1726 G04
2.300
2.315
2.330
2.345
2.360
2.375
–40 –20
20
60 80
TEMPERATURE (°C)
–60
3.035
V
CC3
THRESHOLD VOLTAGE, V
RT3
(V)
3.045
3.065
3.075
3.085
3.135
3.105
–20
20
40
1726 G02
3.055
3.115
3.125
3.095
–40 0
60
80
100
TEMPERATURE (°C)
–60
10
I
VCC5
(µA)
11
13
14
15
20
17
–20
20
40
1726 G05
12
18
19
16
–40 0
60
80
100
V
CC5
= 5V
V
CC3
= 3.3V
TEMPERATURE (°C)
–60
V
CCA
THRESHOLD VOLTAGE, V
RTA
(V)
1.000
1.005
1.015
1.010
0 40 100
1726 G03
0.995
0.990
0.985
–40 –20
20
60 80
TEMPERATURE (°C)
–60
0.5
I
VCC3
(µA)
0.6
0.8
0.9
1.0
1.5
1.2
–20
20
40
1726 G06
0.7
1.3
1.4
1.1
–40 0
60
80
100
V
CC5
= 5V
V
CC3
= 3.3V
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: All voltage values are with respect to GND.
Note 3: The LTC1726E is guaranteed to meet performance specifications
from 0°C to 70°C. Specifications over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls.
Note 4: Both V
CC3
and V
CC25
/V
CC5
can act as the supply depending on
which pin has the greatest potential.
Note 5: Timing measured with respect to RST passing through 1.5V.
Note 6: The output pin RST has a weak internal pull-up to V
CC3
of typically
6µA. However, external pull-up resistors may be used when faster rise
times are required or for V
OH
voltages greater than V
CC3
.
Note 7: The V
CC5
reset override voltage is valid for an operating range less
than approximately 4.15V. Above this point the override is turned off and
the V
CC5
pin functions normally.
elecTrical characTerisTics