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参数资料
| 型号： | MAX4512ESE+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 17/17页 |
| 文件大小： | 0K |
| 描述： | IC SWITCH QUAD SPST 16SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 功能： | 开关 |
| 电路： | 4 x SPST - NO |
| 导通状态电阻： | 160 欧姆 |
| 电压电源： | 单/双电源 |
| 电压 - 电源，单路/双路(±)： | 9 V ~ 36 V，±4.5 V ~ 18 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SOIC |
| 包装： | 管件 |
MAX451
1
/MAX451
2
/MAX451
3
Quad, Rail-to-Rail, Fault-Protected,
SPST Analog Switches
_______________________________________________________________________________________
9
Overview of MAX4511/MAX4512/MAX4513
The MAX4511/MAX4512/MAX4513 differ considerably
from traditional fault-protection switches, with several
advantages. First, they are constructed with two paral-
lel FETs, allowing very low on-resistance when the
switch is on. Second, they allow signals on the NC_ or
NO_ pins that are within or slightly beyond the supply
rails to be passed through the switch to the COM termi-
nal, allowing rail-to-rail signal operation. Third, when a
signal on NC_ or NO_ exceeds the supply rails by
about 50mV (a fault condition), the voltage on COM_ is
limited to the appropriate polarity supply voltage.
Operation is identical for both fault polarities. The fault-
protection extends to ±36V from GND.
During a fault condition, the NO_ or NC_ input pin
becomes high impedance regardless of the switch
state or load resistance. 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 typically source or sink up to 10mA.
When power is removed, the fault protection is still in
effect. In this case, the NO_ or NC_ terminals are a vir-
tual open circuit. The fault can be up to ±40V.
The COM_ pins are not fault protected; they act as nor-
mal CMOS switch pins. If a voltage source is connect-
ed to any COM_ pin, it should be limited to the supply
voltages. Exceeding the supply voltage will cause high
currents to flow through the ESD protection diodes,
possibly damaging the device (see Absolute Maximum
Ratings).
Pin Compatibility
These switches have identical pinouts to common non-
fault-protected CMOS switches. Care should be exer-
cised in considering them for direct replacements in
existing printed circuit boards, however, since only the
NO_ and NC_ pins of each switch are fault protected.
Internal Construction
Internal construction is shown in Figure 1, with the ana-
log signal paths shown in bold. A single normally open
V+
NO_
(NC_)
IN_
GND
V-
HIGH
FAULT
LOW
FAULT
ON
N1
P1
P2
COM_
N2
NC SWITCH
-ESD DIODE
NORMALLY OPEN SWITCH CONSTRUCTION
Figure 1. Block Diagram
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX4512ESE+ | 功能描述:模拟开关 IC Fault-Protected SPST Analog Switch RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
| MAX4512ESE+T | 功能描述:模拟开关 IC Fault-Protected SPST Analog Switch RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
| MAX4512ESE-T | 功能描述:模拟开关 IC RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
| MAX4512MJE | 功能描述:模拟开关 IC RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
| MAX4513C/D | 功能描述:模拟开关 IC RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
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