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參數(shù)資料
| 型號(hào)： | MAX4508-MAX4509 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Fault-Protected, High-Voltage Single 8-to-1/Dual 4-to-1 Multiplexers |
| 中文描述： | 故障保護(hù)，高電壓?jiǎn)?-to-1/Dual 4至1多路復(fù)用器 |
| 文件頁(yè)數(shù)： | 10/16頁(yè) |
| 文件大?。?/td> | 288K |
| 代理商： | MAX4508-MAX4509 |
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When the NO_ voltage goes beyond supply rails (fault
condition), the NO_ input becomes high impedance
regardless of the switch state or load resistance. When
power is removed, and the fault protection is still in
effect, the NO_ terminals are a virtual open circuit. The
fault can be up to ±40V, with V+ = V- = 0. If the switch
is on, the COM_ output current is furnished from the V+
or V- pin by “booster” FETs connected to each supply
pin. These FETs can source or sink up to 10mA.
The COM_ pins are not fault protected. If a voltage
source is connected to any COM_ pin, it should be lim-
ited to the supply voltages. Exceeding the supply volt-
age will cause high currents to flow through the ESD
protection diodes, damaging the device (see Absolute
Maximum Ratings).
Figure 1 shows the internal construction, with the ana-
log signal paths shown in bold. A single normally open
(NO) switch is shown. The analog switch is formed by
the parallel combination of N-channel FET N1 and P-
channel FET P1 which are driven on and off simultane-
ously, according to the input fault condition and the
logic level state.
NO_ Input V oltage
The maximum allowable input voltage for safe opera-
tion depends on whether supplies are on or off and the
load configuration at the COM output. If COM is re-
ferred to a voltage other than ground, but within the
supplies, V
NO_
may range higher or lower than the sup-
plies provided the absolute value of
V
NO_
- V
COM_
is
less than 40V. For example, if the load is referred to
+10V at COM_, then the NO_ voltage range can be
from +50V to -30V. As another example, if the load is
connected to -10V at COM_, the NO_ voltage range is
limited to -50V to +30V.
If the supplies are ±15V and COM is referenced to
ground through a load, the maximum NO_ voltage is
±25V. If the supplies are off and the COM output is ref-
erenced to ground, the maximum NO_ voltage is ±40V.
Fault-Protec ted, High-Voltage
S ingle 8-to-1/Dual 4-to-1 Multiplexers
10
______________________________________________________________________________________
NORMALLY OPEN SWITCH CONSTRUCTION
COM_
P2
MAX4508
MAX4509
P1
N1
ON
LOW
FAULT
HIGH
FAULT
V+
NO_
A-
GWD
ESOCODE
V-
N2
Figure 1. Functional Diagram
相關(guān)PDF資料 |
PDF描述 |
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| MAX4508CAE | Fault-Protected, High-Voltage Single 8-to-1/Dual 4-to-1 Multiplexers |
| MAX4508CPE | Fault-Protected, High-Voltage Single 8-to-1/Dual 4-to-1 Multiplexers |
| MAX4508CSE | Fault-Protected, High-Voltage Single 8-to-1/Dual 4-to-1 Multiplexers |
| MAX4509CSE | Fault-Protected, High-Voltage Single 8-to-1/Dual 4-to-1 Multiplexers |
| MAX4509EPE | Replaced by TMS320VC5509A : Digital Signal Processor 144-LQFP |
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參數(shù)描述 |
|---|---|
| MAX4508MJE | 功能描述:多路器開(kāi)關(guān) IC HV MULTIPLEXER RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開(kāi)關(guān)數(shù)量:4 開(kāi)啟電阻（最大值）:7 Ohms 開(kāi)啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 傳播延遲時(shí)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(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16 |
| MAX4509C/D | 功能描述:多路器開(kāi)關(guān) IC RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開(kāi)關(guān)數(shù)量:4 開(kāi)啟電阻（最大值）:7 Ohms 開(kāi)啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 傳播延遲時(shí)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(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16 |
| MAX4509CPE | 功能描述:多路器開(kāi)關(guān) IC RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開(kāi)關(guān)數(shù)量:4 開(kāi)啟電阻（最大值）:7 Ohms 開(kāi)啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 傳播延遲時(shí)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(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16 |
| MAX4509CPE+ | 功能描述:多路器開(kāi)關(guān) IC 4:1 2Ch Fault Prtctd Analog MUX RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開(kāi)關(guān)數(shù)量:4 開(kāi)啟電阻（最大值）:7 Ohms 開(kāi)啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 傳播延遲時(shí)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(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16 |
| MAX4509CSE | 功能描述:多路器開(kāi)關(guān) IC RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 開(kāi)關(guān)數(shù)量:4 開(kāi)啟電阻（最大值）:7 Ohms 開(kāi)啟時(shí)間（最大值）: 關(guān)閉時(shí)間（最大值）: 傳播延遲時(shí)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(fēng)格:SMD/SMT 封裝 / 箱體:UQFN-16 |
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