1720 查看數據表（PDF） - Linear Technology
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1720 Datasheet PDF : 28 Pages
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TYPICAL PERFORMANCE CHARACTERISTICS
Output Low Voltage
vs Load Current
0.5
VCC = 5V
VCM = 1V
VIN = – 15mV
0.4
125°C
VCC = 2.7V
125°C
25°C
0.3
– 55°C
0.2
0.1
0
4
8
12
16
20
OUTPUT SINK CURRENT (mA)
1720/21 G10
Output High Voltage
vs Load Current
0.0
125°C
– 0.2
VCC = 5V
VCM = 1V
VIN = 15mV
– 55°C
– 0.4
25°C
– 0.6
– 0.8
– 1.0
0
25°C
VCC = 2.7V
4
8
12
16
20
OUTPUT SOURCE CURRENT (mA)
1720/21 G11
LT1720/LT1721
Supply Current vs Frequency
10
25°C
9 VCC = 5V
8
CLOAD = 20pF
7
6
NO LOAD
5
4
3
0
10
20
30
40
FREQUENCY (MHz)
1720/21 G12
PIN FUNCTIONS
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.
VCC (Pin 8): Positive Supply Voltage.
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.
VCC (Pins 11, 14): Positive Supply Voltage.
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.
5
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