Datasheet

LTC1443/LTC1444/LTC1445
6
144345fe
Typical perForMance characTerisTics
Comparator Response Time
vs Input Overdrive
Comparator Response Time
vs Input Overdrive
Comparator Short-Circuit Sink
Current vs Supply Voltage
Comparator Response Time
vs Load Capacitance
Comparator Short-Circuit Source
Current vs Supply Voltage
Comparator Response Time at
Low Supply Voltage
Supply Current
vs Comparator Input Frequency
RESPONSE TIME (µs)
–1
INPUT VOLTAGE (mV) OUTPUT VOLTAGE (V)
100
0
1
64
5
144345 G10
0
20 108
2
3
4
100mV 10mV
50mV 20mV
T
A
= 25°C
RESPONSE TIME (µs)
–1
INPUT VOLTAGE (mV) OUTPUT VOLTAGE (V)
0
0
1
6
14
18
5
144345 G11
100
2 10
4
12
16
0 8
2
3
4
100mV
10mV
50mV
20mV
T
A
= 25°C
SUPPLY VOLTAGE (V)
0
SINK CURRENT (mA)
200
180
160
140
120
100
80
60
40
20
0
8
144345 G12
21 3 5 7 9
4
6
10
OUT CONNECTED TO V
+
T
A
= 25°C
SUPPLY VOLTAGE (V)
0
SOURCE CURRENT (mA)
3
5
144345 G13
1 2 4
160
140
120
100
80
60
40
20
0
OUT CONNECTED TO
V
–
= GND = 0V
LOAD CAPACITANCE (nF)
0
RESPONSE TIME (µs)
12
10
8
6
4
2
80
144345 G14
20
40
60
100
t
PHL
t
PLH
INPUT FREQUENCY (Hz)
1
SUPPLY CURRENT (µA)
10000
1000
100
10
1
100 10k 100k10 1k
144345 G15
C
OUT
= 55pF
C
OUT
= 15pF
C
OUT
= 5pF
SUPPLY VOLTAGE (V)
1
RESPONSE TIME (µs)
10000
1000
100
10
1
1.2 1.4 1.61.1 1.3 1.5
144345 G16
20mV OVERDRIVE
100mV OVERDRIVE