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MAX3491AE

更新时间： 2024-11-26 01:02:31
品牌 Logo 应用领域
美信 - MAXIM /
页数 文件大小 规格书
19页 939K
描述
3.3V-Powered, ±20kV ESD-Protected

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中文翻译

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MAX3491AE 数据手册

 浏览型号MAX3491AE的Datasheet PDF文件第2页浏览型号MAX3491AE的Datasheet PDF文件第3页浏览型号MAX3491AE的Datasheet PDF文件第4页浏览型号MAX3491AE的Datasheet PDF文件第5页浏览型号MAX3491AE的Datasheet PDF文件第6页浏览型号MAX3491AE的Datasheet PDF文件第7页 
MAX3483AE/MAX3485AE/  
MAX3488AE/MAX3490AE/  
MAX3491AE  
+3.3V-Powered, ±20kV ESD-Protected,  
20Mbps and Slew-Rate-Limited  
RS-485/RS-422 Transceivers  
General Description  
Benefits and Features  
●ꢀ IntegratedꢀProtectionꢀIncreasesꢀRobustnessꢀ  
Devices in the MAX3483AE family (MAX3483AE/  
MAX3485AE/MAX3488AE/MAX3490AE/MAX3491AE)  
are ±20kV ESD-protected RS-485/422 transceivers,  
optimized for extended cable runs in noisy environments.  
All devices operate from a single 3.3V supply.  
ꢀ
•ꢀ HighꢀESDꢀProtection  
±20kV HBM ESD per JEDEC JS-001-2012  
±15kV Air Gap per IEC 61000-4-2  
±8kV Contact ESD per IEC 61000-4-2  
ꢀ
ꢀ
•ꢀ Short-CircuitꢀProtectedꢀOutputs  
The MAX3483AE and MAX3485AE are half-duplex transceivers.  
The MAX3488AE, MAX3490AE, and MAX3491AE are  
full-duplex transceivers. All receivers feature a unit-load  
input impedance, allowing up to 32 devices on a single  
bus. Each transceiver includes a fail-safe receiver, ensuring  
that the receiver output (RO) is high when inputs are  
shorted, open, or connected to a tri-state bus.  
•ꢀ TrueꢀFail-SafeꢀReceiverꢀPreventsꢀFalseꢀTransitionꢀ  
on Receiver Input Short or Open Events  
• Hot-Swap Capability Eliminates False Transitions  
ꢀ
DuringꢀPower-UpꢀorꢀHotꢀInsertion  
●ꢀ High-SpeedꢀDataꢀRatesꢀupꢀtoꢀ20Mbps  
●ꢀ Upꢀtoꢀ-40°Cꢀtoꢀ+125°CꢀOperatingꢀTemperature  
●ꢀ AllowsꢀUpꢀtoꢀ128ꢀTransceiversꢀonꢀtheꢀBus  
All devices feature enhanced electrostatic discharge (ESD)  
protection. All transmitter outputs and receiver inputs are  
protected to ±20kV HBM ESD, ±15kV Air-Gap ESD and  
±8kV Contact ESD in accordance to IEC 61000-4-2.  
Applications  
●ꢀ Industrial-ControlꢀLocalꢀAreaꢀNetworks  
●ꢀ TransceiversꢀforꢀEMI-SensitiveꢀApplications  
●ꢀ Telecommuncations  
The MAX3483AE, MAX3485AE, MAX3488AE, and  
MAX3490AE are available in industry standard 8-pin SO  
package, while the MAX3491AE is available in a 14-pin  
SO package.  
Ordering Information appears at end of data sheet.  
Functional Diagram  
A
A
MAX3483AE  
RO  
RO  
R
MAX3485AE  
R
B
RE  
B
RE  
RO  
RE  
R
VCC  
VCC  
SHUTDOWN  
B
A
SHUTDOWN  
DE  
DI  
DE  
Z
Y
Z
Y
DE  
DI  
DI  
D
D
D
MAX3488AE  
MAX3490AE  
MAX3491AE  
19-8506; Rev 0; 3/16  
1234567...19

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