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參數(shù)資料
| 型號： | AS1741H-T |
| 廠商： | AUSTRIAMICROSYSTEMS AG |
| 元件分類： | 數(shù)據(jù)轉(zhuǎn)換 |
| 英文描述： | Dual 0.8? SPST Switch; Package Type: SOT23-8 |
| 中文描述： | 高速，低電壓，單電源，0.8歐姆，雙路SPST模擬開關(guān) |
| 封裝： | SOT23-8 |
| 文件頁數(shù)： | 9/15頁 |
| 文件大?。?/td> | 448K |
| 代理商： | AS1741H-T |
www.austriamicrosystems.com
Revision 1.78
9 - 15
AS1741
Data Sheet
- Application Information
9 Application Information
Power Supply Sequencing
Proper power-supply sequencing is critical for proper switch operation. The power supplies should be started up in the
following sequence:
1. V+
2. NO
x,
NC
x,
COM
x
Note:
Operation beyond the absolute maximum ratings (see page 2) may permanently damage the devices.
Power Supply Bypass
Power supply connections to the devices must maintain a low impedance to ground. This can be done using a bypass
capacitor, which will also improve noise margin and prevent switching noise propagation from the V+ supply to other
components.
A 0.1μF bypass capacitor, connected from V+ to GND (see
Figure 17 on page 11
), is adequate for most applications.
Logic Inputs
Driving IN
x
Rail-to-Rail will help minimize power consumption.
Layout Considerations
High-speed switches require proper layout and design procedures for optimum performance.
!
Short, wide traces should be used to reduce stray inductance and capacitance.
!
Bypass capacitors should be as close to the device as possible.
!
Large ground planes should be used wherever possible.
Timing Diagrams and Test Setups
Figure 12.
AS1741/
AS1743
Test Circuit and Timing Diagram
Figure 13. AS1742
/
AS1743
Test Circuit and Timing Diagram
AS1741/
AS1743
COM
x
NO
x
35pF
50
Ω
V
COMx
IN
x
V
NOx
50
Ω
V+
V+
V
COMx
IN
x
0
0
V
NOx
V
IH
+ 0.5V
t
ON
t
OFF
t
R
< 5ns
t
F
< 5ns
50%
50%
90%
90%
GND
AS1742/
AS1743
COM
x
NC
x
35pF
50
Ω
V
COMx
IN
x
V
NCx
50
Ω
V+
V+
V
COMx
IN
x
0
0
V
NCx
V
IH
+ 0.5V
t
OFF
t
ON
50%
50%
90%
90%
GND
t
R
< 5ns
t
F
< 5ns
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AS1742G-T | Dual 0.8Ω SPST Switch; Package Type: MSOP-8 |
| AS1742H-T | Dual 0.8Ω SPST Switch; Package Type: SOT23-8 |
| AS1743G-T | Dual 0.8Ω SPST Switch NO/NC; Package Type: MSOP-8 |
| AS1743H-T | Dual 0.8Ω SPST Switch NO/NC; Package Type: SOT23-8 |
| AS1745G-T | Dual 4Ω SPDT Switch NO/NC; Package Type: MSOP-10 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AS1742 | 制造商:AMS 功能描述:AS Series SPST 3.6 V 0.8 Ohm SMT High-Speed Dual Analog Switch - MSOP-8 |
| AS1742G | 功能描述:模擬開關(guān) IC 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 |
| AS1742G-T | 功能描述:IC SWITCH DUAL SPST 8-MSOP RoHS:是 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:- 其它有關(guān)文件:STG4159 View All Specifications 標(biāo)準(zhǔn)包裝:5,000 系列:- 功能:開關(guān) 電路:1 x SPDT 導(dǎo)通狀態(tài)電阻:300 毫歐 電壓電源:雙電源 電壓 - 電源，單路/雙路(±):±1.65 V ~ 4.8 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:7-WFBGA，F(xiàn)CBGA 供應(yīng)商設(shè)備封裝:7-覆晶 包裝:帶卷 (TR) |
| AS1742H-T | 功能描述:IC SWITCH DUAL SPST SOT23-8 RoHS:是 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:- 其它有關(guān)文件:STG4159 View All Specifications 標(biāo)準(zhǔn)包裝:5,000 系列:- 功能:開關(guān) 電路:1 x SPDT 導(dǎo)通狀態(tài)電阻:300 毫歐 電壓電源:雙電源 電壓 - 電源，單路/雙路(±):±1.65 V ~ 4.8 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:7-WFBGA，F(xiàn)CBGA 供應(yīng)商設(shè)備封裝:7-覆晶 包裝:帶卷 (TR) |
| AS1743 | 制造商:AMSCO 制造商全稱:austriamicrosystems AG 功能描述:High-Speed, Low-Voltage, Single-Supply, 0.8-ohm, Dual SPST Analog Switches |
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