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| 型号： | MAX4740ETE+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 10/13页 |
| 文件大小： | 0K |
| 描述： | IC SWITCH QUAD SPDT 16TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 功能： | 音频开关 |
| 电路： | 4 x SPDT |
| 导通状态电阻： | 900 毫欧 |
| 电压电源： | 单电源 |
| 电压 - 电源，单路/双路(±)： | 1.6 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： | 16-WFQFN 裸露焊盘 |
| 供应商设备封装： | 16-TQFN-EP（3x3） |
| 包装： | 标准包装 |
| 其它名称： | MAX4740ETE+TDKR |
MAX4740/MAX4740H
Detailed Description
The MAX4740/MAX4740H quad SPDT audio switches
are low on-resistance, low supply current, high power-
supply rejection ratio (PSRR) devices that operate from
a +1.6V to +5.5V single supply. The MAX4740/
MAX4740H have two digital control inputs, CB1 and
CB2, where each bit controls a pair of switches (see
Tables 1 and 2).
Applications Information
The MAX4740/MAX4740H logic inputs accept up to
+5.5V, regardless of supply voltage. For example with a
+3.3V supply, CB1 and CB2 can be driven low to GND
and high to +5.5V, allowing for mixed logic levels in a
system. Driving CB1 and CB2 rail-to-rail minimizes
power consumption. For a 3.3V supply voltage, the
logic thresholds are +0.5V (low) and +1.6V (high).
Analog Signal Levels
Analog signals that range over the entire supply voltage
range (VCC to GND) can be passed with very little
change in on-resistance (see the
Typical Operating
Characteristics). The switches are bidirectional, so the
NO_, NC_, and COM_ terminals can be used as either
inputs or outputs.
Quad SPDT Audio Switches
6
_______________________________________________________________________________________
Pin Description
PIN
NAME
FUNCTION
1
NC1
Analog Switch 1—Normally Closed Terminal
2
CB1
Digital Control Input for Analog Switch 1 and Analog Switch 2
3
NO2
Analog Switch 2—Normally Open Terminal
4
COM2
Analog Switch 2—Common Terminal
5
NC2
Analog Switch 2—Normally Closed Terminal
6
GND
Ground
7
NO3
Analog Switch 3—Normally Open Terminal
8
COM3
Analog Switch 3—Common Terminal
9
NC3
Analog Switch 3—Normally Closed Terminal
10
CB2
Digital Control Input for Analog Switch 3 and Analog Switch 4
11
NO4
Analog Switch 4—Normally Open Terminal
12
COM4
Analog Switch 4—Common Terminal
13
NC4
Analog Switch 4—Normally Closed Terminal
14
VCC
Positive Supply Voltage
15
NO1
Analog Switch 1—Normally Open Terminal
16
COM1
Analog Switch 1—Common Terminal
EP
Exposed Pad. Connect to GND or leave unconnected for normal operation.
CONTROL
SWITCH STATE
CB2
CB1
Switch 3/4
Switch 1/2
0
COM = NC
0
1
COM = NC
COM = NO
1
0
COM = NO
COM = NC
1
COM = NO
Table 1. MAX4740 Truth Table
CONTROL
SWITCH STATE
CB2
CB1
Switch 3/4
Switch 1/2
0
COM = NC
0
1
High-Z
1
0
COM = NO
COM = NC
1
COM = NO
Table 2. MAX4740H Truth Table
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX4740HETE+ | 功能描述:模拟开关 IC Quad SPDT Audio 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 |
| MAX4740HETE+T | 功能描述:模拟开关 IC Quad SPDT Audio 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 |
| MAX4741EKA | 制造商:Maxim Integrated Products 功能描述:0.8OHM, LOW-VOLTAGE, SINGLE-SUPPLY DUAL SPST - Cut Tape Product |
| MAX4741EKA+ | 制造商:Maxim Integrated Products 功能描述:ANLG SW DUAL SPST 3.6V 8PIN SOT-23 - Rail/Tube |
| MAX4741EKA+T | 功能描述:模拟开关 IC 0.8Ohm Dual SPST Audio 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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