LT1720 Linear Technology, LT1720 Datasheet - Page 5

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

PIN
TYPICAL PERFORMANCE CHARACTERISTICS
LT1720
+IN A (Pin 1): Noninverting Input of Comparator A.
–IN A (Pin 2): Inverting Input of Comparator A.
–IN B (Pin 3): Inverting Input of Comparator B.
+IN B (Pin 4): Noninverting Input of Comparator B.
GND (Pin 5): Ground.
OUT B (Pin 6): Output of Comparator B.
OUT A (Pin 7): Output of Comparator A.
V
CC
0.5
0.3
0.2
0.1
0.4
U
(Pin 8): Positive Supply Voltage.
0
Output Low Voltage
vs Load Current
– 55 C
V
V
V
FUNCTIONS
CC
CM
IN
= – 15mV
= 5V
= 1V
U
OUTPUT SINK CURRENT (mA)
4
V
CC
8
= 2.7V
125 C
U
12
25 C
W
125 C
16
1720/21 G10
U
20
– 0.2
– 0.8
– 0.4
– 0.6
–1.0
0.0
0
Output High Voltage
vs Load Current
125 C
OUTPUT SOURCE CURRENT (mA)
4
25 C
8
– 55 C
LT1721
–IN A (Pin 1): Inverting Input of Comparator A.
+IN A (Pin 2): Noninverting Input of Comparator A.
GND (Pins 3, 6): Ground.
OUT A (Pin 4): Output of Comparator A.
OUT B (Pin 5): Output of Comparator B.
+IN B (Pin 7): Noninverting Input of Comparator B.
–IN B (Pin 8): Inverting Input of Comparator B.
–IN C (Pin 9): Inverting Input of Comparator C.
+IN C (Pin 10): Noninverting Input of Comparator C.
V
OUT C (Pin 12): Output of Comparator C.
OUT D (Pin 13): Output of Comparator D.
+IN D (Pin 15): Noninverting Input of Comparator D.
–IN D (Pin 16): Inverting Input of Comparator D.
CC
12
V
CC
(Pins 11, 14): Positive Supply Voltage.
= 2.7V
V
V
V
25 C
CC
CM
IN
16
= 15mV
= 5V
= 1V
1720/21 G11
20
10
9
8
7
6
5
4
3
0
Supply Current vs Frequency
25 C
V
CC
= 5V
LT1720/LT1721
10
FREQUENCY (MHz)
C
LOAD
20
= 20pF
30
NO LOAD
1720/21 G12
5
40