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| 型号： | MAX4667ESE+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 11/12页 |
| 文件大小： | 0K |
| 描述： | IC SWITCH DUAL SPST 16SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 功能： | 开关 |
| 电路： | 2 x SPST - NC |
| 导通状态电阻： | 2.5 欧姆 |
| 电压电源： | 单/双电源 |
| 电压 - 电源，单路/双路(±)： | 4.5 V ~ 36 V，±4.5 V ~ 20 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： | 带卷 (TR) |
MAX4667/MAX4668/MAX4669
2.5
, Dual, SPST,
CMOS Analog Switches
8
_______________________________________________________________________________________
Applications Information
Overvoltage Protection
Proper power-supply sequencing is recommended for
all CMOS devices. Do not exceed the absolute maxi-
mum ratings because stresses beyond the listed rat-
ings can cause permanent damage to the devices.
Always sequence V+ on first, then V-, followed by the
logic inputs, NO, or COM. If power-supply sequencing
is not possible, add two small signal diodes (D1, D2) in
series with supply pins (Figure 1). Adding diodes
reduces the analog signal range to one diode drop
below V+ and one diode drop above V-, but does not
affect the devices’ low switch resistance and low leak-
age characteristics. Device operation is unchanged,
and the difference between V+ and V- should not
exceed 44V. These protection diodes are not recom-
mended when using a single supply.
Off-Isolation at High Frequencies
With the N.C. pins connected to GND, the high-fre-
quency on-response of these parts extends from DC to
above 100MHz with a typical loss of -2dB. When the
switch is turned off, however, it behaves like a capaci-
tor, and off-isolation decreases with increasing frequen-
cy. (Above 300MHz, the switch actually passes more
signal turned off than turned on.) This effect is more
pronounced with higher source and load impedances.
Above 5MHz, circuit-board layout becomes critical and
it becomes difficult to characterize the response of the
switch independent of the circuit. The graphs shown in
the
Typical Operating Characteristics were taken using
a 50
source and load connected with BNC connectors
to a circuit board deemed “average”; that is, designed
with isolation in mind, but not using stripline or other
special RF circuit techniques. For critical applications
above 5MHz, use the MAX440, MAX441, and MAX442,
which are fully characterized up to 160MHz.
COM_
V-
V+
NO_/NC_
* INTERNAL PROTECTION DIODES
D2
D1
-15V
+15V
MAX4667
MAX4668
MAX4669
*
Figure 1. Overvoltage Protection Using External Blocking
Diodes
Pin Description
13
Positive Analog Supply Voltage Input
V+
13
12
Logic Supply Input
VL
12
14, 11
Analog Switch, Common Terminals
COM1, COM2
14, 11
5
Ground
GND
5
2, 7
Logic-Control Digital Inputs
IN2, IN2
2, 7
—
Analog Switch, Normally Closed Terminal
1, 3, 6, 8,
10, 15
1, 3, 6, 8,
10, 15
No Connection. Not internally connected. Connect to GND as
low impedance to improve on/off-isolation.
—
Analog Switch, Normally Open Terminal
NO1
16
NC1
9
16, 9
—
Analog Switch, Normally Closed Terminals
—
16, 9
Analog Switch, Normally Open Terminals
NO1, NO2
—
NC1, NC2
—
4
Negative Analog Supply Voltage Input. Connect to GND for
single-supply operation.
V-
4
N.C.
NAME
PIN
1, 3, 6, 8,
10, 15
MAX4669
MAX4668
FUNCTION
MAX4667
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX4668CPE | 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 |
| MAX4668CPE+ | 功能描述:模拟开关 IC 2.5Ohm Quad 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 |
| MAX4668CSE | 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 |
| MAX4668CSE+ | 功能描述:模拟开关 IC 2.5Ohm Quad 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 |
| MAX4668CSE+T | 功能描述:模拟开关 IC 2.5Ohm Quad 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 |
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