參數(shù)資料
型號: ISL84781IR-T
廠商: INTERSIL CORP
元件分類: 運動控制電子
英文描述: Ultra Low ON-Resistance, Low-Voltage, Single Supply, 8 to 1 Analog Multiplexer
中文描述: 1-CHANNEL, SGL ENDED MULTIPLEXER, PQCC16
封裝: 3 X 3 MM, PLASTIC, MO-220-VEED, QFN-16
文件頁數(shù): 8/12頁
文件大?。?/td> 340K
代理商: ISL84781IR-T
8
FN6095.2
November 17, 2004
Virtually all the analog leakage current comes from the ESD
diodes to V+ or GND. 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 GND 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 GND 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 V+ or GND.
Typical Performance Curves
T
A
= 25°C, Unless Otherwise Specified
FIGURE 8. ON RESISTANCE vs SUPPLY VOLTAGE vs
SWITCH VOLTAGE
FIGURE 9. ON RESISTANCE vs SWITCH VOLTAGE
FIGURE 10. ON RESISTANCE vs SWITCH VOLTAGE
FIGURE 11. CHARGE INJECTION vs SWITCH VOLTAGE
0
1
2
3
4
0.35
0.4
0.45
0.5
0.55
0.6
0.65
0.7
0.75
R
O
)
V
COM
(V)
I
COM
= 100mA
V+ = 3V
V+ = 2.7V
V+ = 1.8V
V+ = 3.6V
V+ = 1.65V
0.3
0.35
0.4
0.45
0.5
0.55
R
O
)
V
COM
(V)
0
0.5
1
1.5
2
2.5
3
25°C
85°C
-40°C
V+ = 3V
I
COM
= 100mA
0
0.5
1
1.5
2
R
O
)
V
COM
(V)
0.3
0.35
0.4
0.45
0.5
0.55
0.6
0.65
0.7
85
°C
-40
°C
25
°C
V+ = 1.8V
I
COM
= 100mA
0
0.5
1
1.5
2
2.5
3
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
Q
V
COM
(V)
V+ = 1.8V
V+ = 3V
ISL84781
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