Datasheet

4
LTC1841/LTC1842/LTC1843
TYPICAL PERFORMANCE CHARACTERISTICS
UW
Comparator Response Time vs
Input Overdrive, with R
PULL-UP
= 5k
Comparator Response Time vs
Input Overdrive, with R
PULL-UP
= 5k
RESPONSE TIME (µs)
–1

INPUT VOLTAGE (mV) OUTPUT VOLTAGE (V)
0

0
1
6
14
18
5
1440/1/2/3 G02
100
210
4
12
16
08
2
3
4
100mV
10mV
50mV
20mV
T
A
= 25°C
Comparator Short-Circuit Sink
Current vs Supply Voltage
SUPPLY VOLTAGE (V)
0
SINK CURRENT (mA)
200
180
160
140
120
100
80
60
40
20
0
8
1440/1/2/3 G03
213579
4
6
10
OUT CONNECTED TO V
+
T
A
= 25°C
Comparator Response Time vs
Load Capacitance with 100mV
Input Overdrive
LOAD CAPACITANCE (nF)
0
RESPONSE TIME (µs)
12
10
8
6
4
2
80
1440/1/2/3 G04
20
40
60
100
t
PHL
t
PLH
Comparator Response Time at
Low Supply Voltage
SUPPLY VOLTAGE (V)
1.0
RESPONSE TIME (µs)
10000
1000
100
10
1
1.2 1.4 1.6

1.1 1.3 1.5
1440/1/2/3 G05
20mV OVERDRIVE
100mV OVERDRIVE
Comparator Output Voltage Low
vs Load Current
LOAD CURRENT (mA)
0
OUTPUT VOLTAGE HIGH (V)
1.5
2.0
2.5
30 50 80
1440/1/2/3 G06
1.0
0.5
0
10 20
40
60 70
V
+
= 2V
V
+
= 3V
V
+
= 5V
T
A
= 25°C
RESPONSE TIME (µs)
–1

INPUT VOLTAGE (mV) OUTPUT VOLTAGE (V)
100

0
1
64
5
1440/1/2/3 G01
0
20108
2
3
4
100mV 10mV
50mV 20mV
T
A
= 25°C