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參數(shù)資料
| 型號： | ISL43240 |
| 廠商： | Intersil Corporation |
| 英文描述： | Low-Voltage, Single and Dual Supply, Quad SPDT, High Performance Analog Switches |
| 中文描述： | 低電壓，單和雙電源，四路SPDT，高性能模擬開關(guān) |
| 文件頁數(shù)： | 8/14頁 |
| 文件大小： | 442K |
| 代理商： | ISL43240 |
8
Detailed Description
The ISL43240 quad analog switches offer precise switching
capability from a bipolar
±
2V to
±
6V or a single 2V to 12V
supply with low on-resistance (18
) and high speed
operation (t
ON
= 52ns, t
OFF
= 40ns). The devices are
especially well suited for portable battery powered
equipment thanks to the low operating supply voltage (2V),
low power consumption (5
μ
W), low leakage currents (5nA
max). High frequency applications also benefit from the wide
bandwidth, and the very high off isolation and crosstalk
rejection.
Supply Sequencing And Overvoltage Protection
With any CMOS device, proper power supply sequencing is
required to protect the device from excessive input currents
which might permanently damage the IC. All I/O pins contain
ESD protection diodes from the pin to V+ and to V- (see
Figure 8). To prevent forward biasing these diodes, V+ and
V- must be applied before any input signals, and input signal
voltages must remain between V+ and V-. If these conditions
cannot be guaranteed, then one of the following two
protection methods should be employed.
Logic inputs can easily be protected by adding a 1k
resistor in series with the input (see Figure 8). The resistor
limits the input current below the threshold that produces
permanent damage, and the sub-microamp input current
produces an insignificant voltage drop during normal
operation.
Adding a series resistor to the switch input defeats the purpose
of using a low R
ON
switch, so two small signal diodes can be
added in series with the supply pins to provide overvoltage
protection for all pins (see Figure 8). These additional diodes
limit the analog signal from 1V below V+ to 1V above V-.
Repeat test for all switches.
FIGURE 4. OFF ISOLATION TEST CIRCUIT
Repeat test for all switches.
FIGURE 5. R
ON
TEST CIRCUIT
FIGURE 6. CROSSTALK TEST CIRCUIT
FIGURE 7. CAPACITANCE TEST CIRCUIT
Test Circuits and Waveforms
(Continued)
ANALYZER
R
L
SIGNAL
GENERATOR
V+
C
0V or 2.4V
NO or NC
COM
IN
GND
C
V-
V+
C
0.8V or 2.4V
NO or NC
COM
IN
GND
V
NX
V
1
R
ON
= V
1
/1mA
1mA
C
V-
0V or 2.4V
ANALYZER
V+
C
NO1 or NC1
SIGNAL
GENERATOR
R
L
GND
IN
1
COM1
IN
2
50
0V or 2.4V
NO
CONNECTION
COM2
NO2 or NC2
C
V-
V+
GND
NO or NC
COM
IN
IMPEDANCE
ANALYZER
0V or 2.4V
V-
ISL43240
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PDF描述 |
|---|---|
| ISL43240IA | Low-Voltage, Single and Dual Supply, Quad SPDT, High Performance Analog Switches |
| ISL43240IR | Low-Voltage, Single and Dual Supply, Quad SPDT, High Performance Analog Switches |
| ISL43410IR | Low-Voltage, Single Supply, DPDT High Performance Analog Switch |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISL43240_04 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Low-Voltage, Single and Dual Supply, Quad SPDT, High Performance Analog Switches |
| ISL43240IA | 功能描述:IC SWITCH QUAD SPDT 20SSOP RoHS:否 類別:集成電路 (IC) >> 接口 - 模擬開關(guān)，多路復(fù)用器，多路分解器 系列:- 標(biāo)準(zhǔn)包裝:48 系列:- 功能:開關(guān) 電路:4 x SPST - NO 導(dǎo)通狀態(tài)電阻:100 歐姆 電壓電源:單/雙電源 電壓 - 電源，單路/雙路(±):2 V ~ 12 V，±2 V ~ 6 V 電流 - 電源:50nA 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:管件 |
| ISL43240IA-T | 功能描述:IC SWITCH QUAD SPDT 20SSOP RoHS:否 類別:集成電路 (IC) >> 接口 - 模擬開關(guān)，多路復(fù)用器，多路分解器 系列:- 標(biāo)準(zhǔn)包裝:48 系列:- 功能:開關(guān) 電路:4 x SPST - NO 導(dǎo)通狀態(tài)電阻:100 歐姆 電壓電源:單/雙電源 電壓 - 電源，單路/雙路(±):2 V ~ 12 V，±2 V ~ 6 V 電流 - 電源:50nA 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:管件 |
| ISL43240IAZ | 功能描述:模擬開關(guān) IC SWITCH 4X SPDT +/-5V 18OHM IND RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:2 開關(guān)配置:SPDT 開啟電阻（最大值）:0.1 Ohms 切換電壓（最大）: 開啟時間（最大值）: 關(guān)閉時間（最大值）: 工作電源電壓:2.7 V to 4.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-16 |
| ISL43240IAZ-T | 功能描述:模擬開關(guān) IC SWITCH 4X +/-5V 18OHM IND RoHS:否 制造商:Texas Instruments 開關(guān)數(shù)量:2 開關(guān)配置:SPDT 開啟電阻（最大值）:0.1 Ohms 切換電壓（最大）: 開啟時間（最大值）: 關(guān)閉時間（最大值）: 工作電源電壓:2.7 V to 4.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DSBGA-16 |
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