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| 型号： | MAX4518 |
| 厂商： | Maxim Integrated Products, Inc. |
| 英文描述： | Precision, 4-Channel, Low-Voltage, CMOS Analog Multiplexers(精密,4通道,低电压,CMOS模拟多路转换器) |
| 中文描述： | 高精度、4通道/双2通道、低电压、CMOS模拟多路复用器 |
| 文件页数： | 8/12页 |
| 文件大小： | 169K |
| 代理商： | MAX4518 |
M
__________Applic ations Information
Operation with S upply V oltages
Other than ±5V
Using supply voltages less than ±5V reduces the analog
signal range. The MAX4518/MAX4519 muxes operate
with ±2.7V to ±8V bipolar supplies or with a +2.7V to
+15V single supply. Connect V- to GND when operating
with a single supply. Both device types can also operate
with unbalanced supplies, such as +10V and -5V. The
Typical Operating Characteristics graphs show typical
on-resistance with ±3V, ±5V, +3V and +5V supplies.
(Switching times increase by a factor of two or more for
operation at 5V.)
Overvoltage Protec tion
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 for overvoltage protection
(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 leakage characteristics. Device
operation is unchanged, and the difference between
V+ and V- should not exceed 17V. These protection
diodes are not recommended when using a single supply.
Prec ision, 4-Channel/Dual 2-Channel,
Low-Voltage, CMOS Analog Multiplexers
8
_______________________________________________________________________________________
______________________________________________Test Circ uits/T iming Diagrams
COM
V-
V+
NO
* INTERNAL PROTECTION DIODES
D2
D1
-5V
+5V
MAX4518
MAX4519
*
*
*
*
Figure 1. Overvoltage Protection Using External Blocking Diodes
50%
t
R
< 20ns
t
F
< 20ns
V
OUT
+3V
0V
V
NO1A
, V
NO1B
0V
V
NO4
, V
NO2B
LOGIC
INPUT
V
EN
SWITCH
OUTPUT
+5V
V
OUT
-5V
GND
V+
V+
V+
A1
V-
EN
A0
NO1
NO2–NO3
NO4
COM
+5V
-5V
50
MAX4518
300
35pF
A1
A0
+5V
V
OUT
-5V
GND
V+
V-
EN
NO1B
COMA, NO1A–NO2A
NO2B
COMB
+5V
50
MAX4519
300
35pF
90%
90%
t
TRANS
t
TRANS
-5V
Figure 2. Transition Time
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX4518C/D | 功能描述:多路器开关 IC RoHS:否 制造商:Texas Instruments 通道数量:1 开关数量:4 开启电阻（最大值）:7 Ohms 开启时间（最大值）: 关闭时间（最大值）: 传播延迟时间:0.25 ns 工作电源电压:2.3 V to 3.6 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UQFN-16 |
| MAX4518C/D DIE | 制造商:Maxim Integrated Products 功能描述: |
| MAX4518CEE | 功能描述:多路器开关 IC RoHS:否 制造商:Texas Instruments 通道数量:1 开关数量:4 开启电阻（最大值）:7 Ohms 开启时间（最大值）: 关闭时间（最大值）: 传播延迟时间:0.25 ns 工作电源电压:2.3 V to 3.6 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UQFN-16 |
| MAX4518CEE+ | 功能描述:多路器开关 IC 4:1 Low Voltage Analog MUX RoHS:否 制造商:Texas Instruments 通道数量:1 开关数量:4 开启电阻（最大值）:7 Ohms 开启时间（最大值）: 关闭时间（最大值）: 传播延迟时间:0.25 ns 工作电源电压:2.3 V to 3.6 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UQFN-16 |
| MAX4518CEE+T | 功能描述:多路器开关 IC 4:1 Low Voltage Analog MUX RoHS:否 制造商:Texas Instruments 通道数量:1 开关数量:4 开启电阻（最大值）:7 Ohms 开启时间（最大值）: 关闭时间（最大值）: 传播延迟时间:0.25 ns 工作电源电压:2.3 V to 3.6 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UQFN-16 |
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