The cxas4256 is a four channel SPDT, suitable for
For communication systems, medical devices and other portable battery powered devices. It uses CMOS technology,
It has the characteristics of bidirectional, low resistance, low voltage, low power consumption, low leakage current, high speed and high bandwidth
Suitable for battery powered portable products. Its very low switching impedance is 0.5 Ω (typ) and fast switch
Time ton = 50ns, tofoff = 25ns, which can greatly reduce the signal loss of battery powered portable products,
Improve audio and video output levels. The cxas4256 consists of four SPDT switches with two controls
At the brake end, each control end can control two SPDT switches.
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[ CXAS4256 ]"
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一,产品概述(General Description) CXAS4256 是一个四通道单刀双掷模拟开关(SPDT)，适用于通信系统，医疗设备和其它便携式电池供电设备。它采用CMOS 工艺，具有双向，低阻值，低压，低功耗，低漏电流，高速，高带宽的特点，非常适合电池供电的便携式产品采用。其极低的开关阻抗0.5Ω(TYP)和快速开关时间tON=50ns, tOFF=25ns，可以大大减少电池供电便携式产品的信号损失， 电压工作范围：1.8V～4.2V 需要详细的PDF规格书请扫一扫微信联系我们，还可以获得免费样品以及技术支持！ 五,产品封装图 (Package)
六.电路原理图
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七,功能概述
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参数 |
符号 |
测试条件 |
+25℃ |
-40℃～+125℃ |
MAX/MIN |
单位 |
|
模拟开关范围 |
VCOM |
0 |
MIN |
V |
||
|
VNC，VNO |
V+ |
MAX |
V |
|||
|
RON |
VNO or VNC=1V,V+=4.2V |
0.5 |
TYP |
Ω |
||
|
ICOM=-10mA,TEST Circuit 1 |
0.75 |
0.85 |
MAX |
Ω |
||
|
导通电阻匹配 |
ΔRON |
VNO or VNC=1V,V+=4.2V |
0.05 |
0.1 |
TYP |
Ω |
|
ICOM=-10mA,TEST Circuit 1 |
0.15 |
0.2 |
MAX |
Ω |
||
|
导通电阻平整度 |
RFLAT（ON） |
VNO or VNC=1V,V+=4.2V |
0.1 |
TYP |
Ω |
|
|
ICOM=-10mA,TEST Circuit 1 |
0.22 |
0.26 |
MAX |
Ω |
||
|
关断电流 |
INC(OFF) |
VNO or VNC=3.3V/0.3V，V+=4.2V， |
±4 |
TYP |
nA |
|
|
INO(OFF) |
VCOM=0.3V/3.3V |
±10 |
±1000 |
MAX |
nA |
|
|
导通电流 |
INC(ON)， |
VNO or VNC=VCOM=0.3V/3.3V |
±4 |
TYP |
nA |
|
|
INO(ON)， |
V+=4.2V |
|||||
|
ICOM(ON) |
±10 |
±1000 |
MAX |
nA |
||
|
输入高电平 |
VINH |
1.6 |
MIN |
V |
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输入低电平 |
VINL |
0.5 |
MAX |
V |
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|
输入电流 |
IINH or IINL |
VIN=VINH or VINL |
±0.01 |
TYP |
uA |
|
|
±1000 |
±1000 |
MAX |
uA |
|||
|
开启时间 |
tON |
VNO or VNC=2V，RL=50Ω， |
50 |
TYP |
ns |
|
|
CL=35pF，Test Circuit 2 |
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关断时间 |
tOFF |
VNO or VNC=2V，RL=50Ω， |
25 |
TYP |
ns |
|
|
CL=35pF，Test Circuit 2 |
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带宽-3dB |
BW |
RL=50Ω，CL=5pF，Test Circuit 3 |
70 |
TYP |
MHz |
|
|
导通电容 |
CNC(ON) |
f=1MHz |
80 |
TYP |
pF |
|
|
CNO(ON) |
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CCOM(ON) |
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静态电流 |
I+ |
V+ =4.2V,VIN=0V or V+ |
0.001 |
TYP |
uA |
|
|
0.1 |
1 |
MAX |
uA |
八,相关产品
|
产品名称 |
通道 |
工作电压(V) |
-3dB带宽(MHz) |
导通内阻(mΩ) |
最大电流(mA) |
封装形式 |
|
1 |
2.0-5.5 |
----- |
70 |
3500 |
SOT-23-5,SOP-8 |
|
|
1 |
2.2-6.0 |
----- |
100 |
1100 |
SOT-23-5 |
|
|
4 |
1.8-4.2 |
70 |
500 |
200 |
QFNWB3*3-16 |
|
|
2 |
1.8-5.5 |
30 |
500 |
300 |
MSOP-10 |
