LTC1444_15 Datasheet, PDF (6/14 Pages) Linear Technology – Ultralow Power Quad Comparators with Reference

LTC1443/LTC1444/LTC1445
Typical Performance Characteristics
Comparator Response Time
vs Input Overdrive
5 _{TA = 25°C}
4
100mV
10mV
3
50mV
2
20mV
1
0
0
100
–1 0
24
6
8
10
RESPONSE TIME (µs)
144345 G10
Comparator Response Time
vs Input Overdrive
5
T_A = 25°C
4
100mV
3
50mV
20mV
2
10mV
1
0
100
0
–1 0 2 4 6 8 10 12 14 16 18
RESPONSE TIME (µs)
144345 G11
Comparator Short-Circuit Sink
Current vs Supply Voltage
200
T_A = 25°C
180
160
140
OUT CONNECTED TO V⁺
120
100
80
60
40
20
0
01
23 45 678
SUPPLY VOLTAGE (V)
9 10
144345 G12
Comparator Short-Circuit Source
Current vs Supply Voltage
160
140
120
100
OUT CONNECTED TO
V^– = GND = 0V
80
60
40
20
0
0
1
2
3
4
5
SUPPLY VOLTAGE (V)
144345 G13
Comparator Response Time
vs Load Capacitance
12
10
t_PHL
8
6
t_PLH
4
2
0
20
40
60
80 100
LOAD CAPACITANCE (nF)
144345 G14
Supply Current
vs Comparator Input Frequency
10000
Comparator Response Time at
Low Supply Voltage
10000
6
1000
100
10
1
1
C_OUT = 55pF
C_OUT = 15pF
C_OUT = 5pF
10
100
1k
10k 100k
INPUT FREQUENCY (Hz)
144345 G15
1000
100
20mV OVERDRIVE
10
100mV OVERDRIVE
1
1 1.1 1.2 1.3 1.4 1.5 1.6
SUPPLY VOLTAGE (V)
144345 G16
144345fe