LTC1445 Linear Technology, LTC1445 Datasheet - Page 5

• Manufacturer Part Number: LTC1445
• Description: Ultralow Power Quad Comparators with Reference
• Manufacturer: Linear Technology

TYPICAL PERFOR A CE CHARACTERISTICS
100
5
3
2
1
0
0
4
–1
Comparator Response Time vs
Input Overdrive
T
A
= 25 C
0
10000
RESPONSE TIME ( s)
50mV
1000
100
160
140
120
100
2
10
80
60
40
20
1
100mV
0
1
Comparator Short-Circuit Source
Current vs Supply Voltage
0
Supply Current vs
Comparator Input Frequency
4
10
1
INPUT FREQUENCY (Hz)
6
SUPPLY VOLTAGE (V)
OUT CONNECTED TO
LTC1443/44/45 • TPC10
W
10mV
100
20mV
2
8
V
C
OUT
–
= GND = 0V
U
= 15pF
10
1k
3
C
OUT
LTC1443/44/45 • TPC13
C
= 55pF
10k
OUT
LTC1329 • TPC15
4
= 5pF
100
5
3
2
1
0
4
0
100k
–1
Comparator Response Time vs
Input Overdrives
5
T
A
0
= 25 C
100mV
2
RESPONSE TIME ( s)
4
6
50mV
8
20mV
10
12
LTC1443/44/45 • TPC11
10mV
10000
LTC1443/LTC1444/LTC1445
14
1000
100
10
12
10
16
1
8
6
4
2
0
1
Comparator Response Time vs
Load Capacitance
Comparator Response Time at
Low Supply Voltage
18
1.1
20
t
t
LOAD CAPACITANCE (nF)
PHL
PLH
SUPPLY VOLTAGE (V)
200
180
160
140
120
100
1.2
80
60
40
20
0
100mV OVERDRIVE
40
0
Comparator Short-Circuit Sink
Current vs Supply Voltage
T
1.3
A
1
= 25 C
20mV OVERDRIVE
60
OUT CONNECTED TO V
2
1.4
SUPPLY VOLTAGE (V)
3
LTC1443/44/45 • TPC16
LTC1443/44/45 • TPC14
80
4
1.5
5
100
1.6
6
+
7
LTC1443/44/45 • TPC12
8
9
5
10