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参数资料
| 型号： | MAX4745ELB+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 10/12页 |
| 文件大小： | 0K |
| 描述： | IC SWITCH DUAL SPDT 10UDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program Low Voltage Analog Switches Overview |
| 标准包装： | 1 |
| 功能： | 音频开关 |
| 电路： | 2 x SPDT |
| 导通状态电阻： | 950 毫欧 |
| 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： | 300nA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-WFDFN |
| 供应商设备封装： | 10-uDFN（2x2） |
| 包装： | 标准包装 |
| 其它名称： | MAX4745ELB+TDKR |
Detailed Description
The MAX4744/MAX4744H/MAX4745/MAX4745H/
MAX4746H are low on-resistance, low-voltage, dual-
SPDT analog switches that operate from a +1.8V to
+5.5V single supply. These devices feature a negative
signal capability that allows signals as low as VCC -
5.5V to pass through without distortion.
The MAX4744/MAX4745 feature two digital control bits
to control each switch independently (see Table 1). The
MAX4744H/MAX4745H/MAX4746H have one control bit
to switch both switches and an enable input EN to put
the switches in a high-impedance mode. Driving EN
low takes the switches out of high impedance and CB0
controls both switches (see Table 2).
The MAX4744/MAX4744H have internal shunt resistors
on all NO and NC terminals, and the MAX4746H has
internal shunt resistors on NC terminals to suppress
click-and-pop sounds that can occur when switching
audio signals between precharged points.
Applications Information
Digital Control Inputs
The MAX4744/MAX4744H/MAX4745/MAX4745H/
MAX4746H logic inputs accept up to +5.5V, regardless
of supply voltage. For example, with a +3.3V supply,
CB0, CB1, CB2, and EN can be driven low to GND and
high to +5.5V, allowing for mixed logic levels in a sys-
tem. Driving CB0, CB1, CB2, and EN rail-to-rail mini-
mizes power consumption.
MAX4744/MAX4744H/MAX4745/MAX4745H/MAX4746H
Low-Voltage, Dual SPDT, Audio Clickless
Switches with Negative Rail Capability
_______________________________________________________________________________________
7
Pin Description
PIN
MAX4744/
MAX4745
MAX4744H/
MAX4745H/
MAX4746H
NAME
FUNCTION
1
—
CB1
Digital Control Input for Analog Switch 1
—1
EN
Enable Input. Driving EN high causes all switches to be high impedance. Pull EN low for
normal operation.
2
NO1
Analog Switch 1—Normally Open Terminal
3
GND
Ground
4
NO2
Analog Switch 2—Normally Open Terminal
5
—
CB2
Digital Control Input for Analog Switch 2
—
5
CB0
Digital Control Input for Analog Switches 1 and 2
6
COM2
Analog Switch 2—Common Terminal
7
NC2
Analog Switch 2—Normally Closed Terminal
88
VCC
Positive Supply Voltage from +1.8V to +5.5V
9
NC1
Analog Switch 1—Normally Closed Terminal
10
COM1
Analog Switch 1—Common Terminal
CONTROL
SWITCH STATE
CB1
CB2
Switch 1
Switch 2
0
Connected to NC1
Connected to NC2
0
1
Connected to NC1
Connected to NO2
1
0
Connected to NO1
Connected to NC2
1
Connected to NO1
Connected to NO2
Table 1. MAX4744/MAX4745 Truth Table
CONTROL
SWITCH STATE
EN
CB0
Switch 1
Switch 2
0
Connected to NC1
Connected to NC2
0
1
Connected to NO1
Connected to NO2
1
X
High Impedance
Table 2. MAX4744H/MAX4745H/MAX4746H
Truth Table
X = Don’t Care
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX4745HELB+ | 制造商:Maxim Integrated Products 功能描述: |
| MAX4745HELB+T | 功能描述:模拟开关 IC Dual SPDT Audio Clickless 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 |
| MAX4746HELB+ | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX4746HELB+T | 功能描述:模拟开关 IC Dual SPDT Audio Clickless 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 |
| MAX4747EBE | 制造商:Maxim Integrated Products 功能描述:50OHM LOW-VOLTAGE QUAD SPST/DUAL - Rail/Tube 制造商:Rochester Electronics LLC 功能描述: |
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