LT1720 Linear Technology, LT1720 Datasheet - Page 4

• Manufacturer Part Number: LT1720
• Description: 4ns/ 150MHz Dual Comparator with Independent Input/Output Supplies
• Manufacturer: Linear Technology

LT1720/LT1721
TYPICAL PERFORMANCE CHARACTERISTICS
4
– 2
– 3
– 4
– 5
– 6
– 7
–1
–1
–2
–3
2
1
0
3
2
1
0
9
8
7
6
5
4
3
2
1
0
– 5
2.5
0
Propagation Delay
vs Load Capacitance
Input Current
vs Differential Input Voltage
Input Offset and Trip Voltages
vs Supply Voltage
25 C
V
25 C
V
OVERDRIVE = 20mV
V
25 C
V
CC
STEP
CC
– 4 – 3 – 2 –1
CM
3.0
DIFFERENTIAL INPUT VOLTAGE (V)
= 5V
= 5V
OUTPUT LOAD CAPACITANCE (pF)
= 1V
= 100mV
10
3.5
SUPPLY VOLTAGE (V)
20
4.0
0
V
V
4.5
TRIP
V
TRIP
OS
30
1
+
–
RISING EDGE
FALLING EDGE
5.0
2
(t
W
PDLH
(t
PDHL
40
3
1720/21 G04
5.5
)
1720/21 G01
1720/21 G07
)
4
U
6.0
50
5
– 1
– 2
– 3
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
8.0
7.5
7.0
6.5
6.0
5.5
5.0
4.5
4.0
3
2
1
0
–50
– 50
– 50
Quiescent Supply Current
vs Temperature
Propagation Delay
vs Temperature
Input Offset and Trip Voltages
vs Temperature
V
V
CC
– 25
CC
– 25
– 25
= 3V
= 5V
V
V
CC
CC
0
0
0
= 5V
TEMPERATURE ( C)
TEMPERATURE ( C)
TEMPERATURE (˚C)
= 3V
V
CC
25
= 5V
25
25
V
V
TRIP
V
TRIP
OVERDRIVE = 20mV
OVERDRIVE = 5mV
OS
50
50
50
+
–
V
CC
t
V
V
C
PDLH
CM
STEP
LOAD
75
75
75
= 3V
= 1V
= 100mV
= 10pF
100
100
100
1720/21 G02
1720/21 G05
1720/21 G08
125
125
125
– 0.2
– 0.4
4.2
4.0
3.8
3.6
0.2
5.0
4.0
4.5
0
7
6
5
4
3
2
1
0
– 50
2.5
Input Common Mode Limits
vs Temperature
0
Propagation Delay
vs Supply Voltage
Quiescent Supply Current
vs Supply Voltage
V
25 C
V
OVERDRIVE = 20mV
C
CC
STEP
LOAD
– 25
3.0
= 5V
1
= 100mV
= 10pF
3.5
SUPPLY VOLTAGE (V)
0
SUPPLY VOLTAGE (V)
2
TEMPERATURE ( C)
RISING EDGE
25
4.0
3
(t
PDLH
FALLING EDGE
50
4.5
4
(t
)
PDHL
– 55 C
125 C
25 C
75
5.0
)
5
100
1720/21 G03
5.5
6
1720/21 G06
1720/21 G09
125
6.0
7