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參數(shù)資料
| 型號： | ISL43145 |
| 廠商： | Intersil Corporation |
| 英文描述： | Low-Voltage, Single and Dual Supply, Quad SPST, High Performance Analog Switches(低電壓, 單電源與雙電源, 四SPST, 高性能模擬開關(guān)) |
| 中文描述： | 低電壓，單和雙電源，四路SPST高性能模擬開關(guān)（低電壓，單電源與雙電源，四聚苯乙烯，高性能模擬開關(guān)） |
| 文件頁數(shù)： | 11/15頁 |
| 文件大?。?/td> | 528K |
| 代理商： | ISL43145 |
11
FN6037.3
December 1, 2005
Crosstalk rejection provided by this family. At 10MHz, OFF
isolation is about 50dB in 5
0
systems, decreasing
approximately 20dB per decade as frequency increases.
Higher load impedances decrease OFF Isolation and
Crosstalk rejection due to the voltage divider action of the
switch OFF impedance and the load impedance.
Leakage Considerations
Reverse ESD protection diodes are internally connected
between each analog-signal pin and both V+ and V-. One
of these diodes conducts if any analog signal exceeds V+
or V-.
Virtually all the analog leakage current comes from the ESD
diodes to V+ or V-. Although the ESD diodes on a given
signal pin are identical and therefore fairly well balanced,
they are reverse biased differently. Each is biased by either
V+ or V- and the analog signal. This means their leakages
will vary as the signal varies. The difference in the two diode
leakages to the V+ and V- pins constitutes the analog-signal-
path leakage current. All analog leakage current flows
between each pin and one of the supply terminals, not to the
other switch terminal. This is why both sides of a given
switch can show leakage currents of the same or opposite
polarity. There is no connection between the analog signal
paths and GND.
Typical Performance Curves
T
A
= 25°C, Unless Otherwise Specified
FIGURE 9. ON RESISTANCE vs POSITIVE SUPPLY VOLTAGE
FIGURE 10. ON RESISTANCE vs SWITCH VOLTAGE
FIGURE 11. ON RESISTANCE vs SWITCH VOLTAGE
FIGURE 12. CHARGE INJECTION vs SWITCH VOLTAGE
R
O
)
V+ (V)
2
4
6
8
10
12
3
5
7
9
11
13
0
50
25
100
75
150
125
200
V- = 0V
-40°C
85°C
25°C
10
15
20
25
30
35
V- = -3V
-40°C
85°C
25°C
15
20
25
V- = -5V
V
COM
= (V+) - 1V
I
COM
= 1mA
-40°C
85°C
25°C
10
15
20
20
25
30
35
20
30
40
50
60
70
R
O
)
V
COM
(V)
0
2
4
6
8
10
12
1
3
5
7
9
11
V+ = 3V
V+ = 5V
25°C
-40°C
85°C
25°C
-40°C
85°C
V- = 0V
V- = 0V
I
COM
= 1mA
8
10
12
14
16
18
-40°C
85°C
V+ = 12V
V- = 0V
25°C
20
35
25
30
35
40
45
10
15
20
25
R
O
)
V
COM
(V)
-4
-2
0
2
4
-5
-3
-1
1
3
5
V
S
=
±
5V
V
S
=
±
3V
I
COM
= 1mA
V
S
=
±
2V
25°C
85°C
25°C
-40°C
85°C
-40°C
5
10
15
20
25
30
25°C
-40°C
85°C
Q
V
COM
(V)
-5
0
5
10
-2.5
2.5
7.5
12.5
-10
-5
0
5
10
15
V
S
=
±
5V
V+ = 5V
V+ = 3V
V+ = 12V
ISL43143, ISL43144, ISL43145
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| ISL43144 | Low-Voltage, Single and Dual Supply, Quad SPST, High Performance Analog Switches(低電壓, 單電源與雙電源, 四SPST, 高性能模擬開關(guān)) |
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| ISL43240IA-T | Low-Voltage, Single and Dual Supply, Quad SPDT, High Performance Analog Switches |
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