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參數(shù)資料
| 型號： | DG459DJ |
| 廠商： | Vishay Intertechnology,Inc. |
| 英文描述： | Fault-Protected Single 8-Ch/Differential 4-Ch Analog Multiplexers |
| 中文描述： | 故障保護單8-Ch/Differential 4通道模擬多路復用器 |
| 文件頁數(shù)： | 8/8頁 |
| 文件大?。?/td> | 90K |
| 代理商： | DG459DJ |
DG458/459
Vishay Siliconix
www.vishay.com FaxBack 408-970-5600
5-8
Document Number: 70064
S-52433—Rev. F, 06-Sep-99
FIGURE 5.
Enable Delay
S
1
S
2
– S
8
A
0
A
1
A
2
50
1 k
V
O
EN
V+
GND
V–
D
35 pF
–15 V
+15 V
DG458
0 V
3 V
0 V
90%
50%
Enable
Input
V
O
Switch
Output
V
S
t
ON(EN)
t
OFF(EN
+5 V
The Vishay Siliconix DG458 and DG459 multiplexers are fully
fault- and overvoltage-protected for continuous input voltages
up to
35 V whether or not voltage is applied to the power
supply pins (V+, V–). These multiplexers are built on a
high-voltage junction-isolated silicon-gate CMOS process.
Two n-channel and one p-channel MOSFETs are connected
in series to form each channel (Figure 1).
Within the normal analog signal range (
variation as a function of analog signal voltage is comparable
to that of the classic parallel N-MOS and P-MOS switches.
10 V), the r
DS(on)
When the analog signal approaches or exceeds either supply
rail, even for an on-channel, one of the three series MOSFETs
gets
cut-off,
providing
inherent
overvoltages even if the multiplexer power supply voltages are
lost. This protection is good up to the breakdown voltage of the
respective series MOSFETs. Under fault conditions only sub
microamp leakage currents can flow in or out of the multiplexer.
This not only provides protection for the multiplexer and
succeeding circuitry, but it allows normal, undisturbed
operation of all other channels. Additionally, in case of power
loss to the multiplexer, the loading caused on the transducers
and signal sources is insignificant, therefore redundant
multiplexers can be used on critical applications such as
telemetry and avionics.
protection
against
FIGURE 6.
Overvoltage Protection
–15 V
–15 V
+15 V
–35 V
Overvoltage
+35 V
Overvoltage
Q
1
Q
2
Q
3
n-Channel
MOSFET
is On
p-Channel
MOSFET
is Off
n-Channel
MOSFET
is Off
(b) Overvoltage with Multiplexer Power On
–15 V
+15 V
D
S
G
D
S
G
D
S
G
–35 V
Overvoltage
+35 V
Overvoltage
Q
1
Q
2
Q
3
–35 V
n-Channel
MOSFET
is On
p-Channel
MOSFET
is Off
n-Channel
MOSFET
is Off
(a) Overvoltage with Multiplexer Power Off
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DG459 | Fault-Protected Single 8-Ch/Differential 4-Ch Analog Multiplexers |
| DG485 | Octal Analog Switch Array(8通道模擬多路轉(zhuǎn)換器（由8個單刀單擲模擬開關(guān)和一個通用輸出組成）) |
| DG5043 | Monolithic General-Purpose CMOS Analog Switch(帶先離后合轉(zhuǎn)換功能的單片通用雙單刀雙擲CMOS模擬開關(guān)) |
| DG5043 | Monolithic General-Purpose CMOS Analog Switch |
| DG5043CJ | Monolithic General-Purpose CMOS Analog Switch |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DG459DJ-E3 | 功能描述:多路器開關(guān) IC Diff 4:1 w/Fault Prt Multiplexer/MUX RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開關(guān)數(shù)量:4 開啟電阻（最大值）:7 Ohms 開啟時間（最大值）: 關(guān)閉時間（最大值）: 傳播延遲時間:0.25 ns 工作電源電壓:2.3 V to 3.6 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:UQFN-16 |
| DG45FC | 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:Technical Product Specification |
| DG467 | 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:Low Power, High Voltage SPST Analog Switches |
| DG467_11 | 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:Low Power, High Voltage SPST Analog Switches |
| DG467DV-T1-E3 | 功能描述:模擬開關(guān) IC Lo-Pwr HV Dual SPST 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 安裝風格:SMD/SMT 封裝 / 箱體:DSBGA-16 |
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