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参数资料
| 型号： | MAX4643EUA+G24 |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 8/10页 |
| 文件大小： | 0K |
| 描述： | IC SWITCH DUAL SPST 8UMAX |
| 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： | 2 x SPST - NC/NO |
| 导通状态电阻： | 4 欧姆 |
| 电压电源： | 单电源 |
| 电压 - 电源，单路/双路(±)： | 1.8 V ~ 5.5 V |
| 电流 - 电源： | 1nA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-uMAX |
| 包装： | 管件 |
MAX4641/MAX4642/MAX4643
High-Speed, Low-Voltage, 4
, Dual SPST
CMOS Analog Switches
_______________________________________________________________________________________
7
Applications Information
The MAX4641/MAX4642/MAX4643 operate from a sin-
gle supply ranging from +1.8V to +5.5V. The devices
are guaranteed to be functional over that supply range,
but TTL/CMOS compatibility is only valid for operation
using a +5V supply. All voltage levels are referenced to
GND. Positive and negative DC analog inputs or AC
signals can be accommodated by shifting V+ and
GND.
ESD-protection diodes are internally connected be-
tween each analog-signal pin and both V+ and GND.
One of these diodes conducts if any analog signal
exceeds V+ or GND (Figure 1). Virtually all of the ana-
log leakage current comes from the ESD diodes to V+
or GND. Although the ESD diodes on a given signal pin
are identical, and therefore fairly well balanced, they
are reverse biased differently. Each is biased by either
V+ or GND and the analog signal. This means their
leakages will vary as the signal varies. The difference in
the two diode leakages to the V+ and GND pins consti-
tutes the analog-signal-path leakage current. All analog
leakage current flows between each pin and one of the
supply terminals, not to the other switch terminal. This
is why both sides of a given switch can show leakage
currents of the same or opposite polarity.
There is no normal current path between the analog-
signal paths and V+ or GND. V+ and GND also power
the internal logic and logic-level translators. The logic-
level translators convert the logic level into switched V+
and GND signals to drive the analog signal gates.
V+
NO_, NC_
GND
COM
Figure 1. Overvoltage Protection Using External Blocking
Diodes
MAX4641
IN_
0
1
NO_
MAX4641
OFF
ON
COM2
IN2
NO2
GND
1
2
8
7
V+
IN1
COM1
NO1
TOP VIEW
3
4
6
5
MAX4642
IN_
0
1
NC_
MAX4642
ON
OFF
COM2
IN2
NC2
GND
1
2
8
7
V+
IN1
COM1
NC1
3
4
6
5
MAX4643
IN_
0
1
NO1
MAX4643
OFF
ON
NC2
ON
OFF
COM2
IN2
NC2
GND
1
2
8
7
V+
IN1
COM1
NO1
3
4
6
5
QFN
Pin Configurations/Functional Diagrams/Truth Tables (continued)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX4643EUA-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 |
| MAX4643EUA-TG05 | 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 |
| MAX4644CPA | 制造商:Maxim Integrated Products 功能描述: |
| MAX4644EUA | 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 |
| MAX4644EUA+ | 功能描述:模拟开关 IC 4Ohm Dual SPST CMOS 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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