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MAX491EEPD+ from MAX,MAXIM - Dallas Semiconductor

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MAX491EEPD+

Manufacturer: MAX

±15kV ESD-Protected, Slew-Rate-Limited, Low-Power, RS-485/RS-422 Transceivers

Partnumber Manufacturer Quantity Availability
MAX491EEPD+,MAX491EEPD MAX 200 In Stock

Description and Introduction

±15kV ESD-Protected, Slew-Rate-Limited, Low-Power, RS-485/RS-422 Transceivers The MAX491EEPD+ is a low-power, high-speed RS-485/RS-422 transceiver manufactured by Maxim Integrated (now part of Analog Devices).  

### **Specifications:**  
- **Manufacturer:** Maxim Integrated  
- **Package:** 14-PDIP (Plastic Dual In-Line Package)  
- **Supply Voltage Range:** +4.75V to +5.25V  
- **Data Rate:** Up to 2.5Mbps  
- **Operating Temperature Range:** -40°C to +85°C  
- **Number of Drivers/Receivers:** 1 Driver, 1 Receiver  
- **Half-Duplex Communication:** Yes  
- **ESD Protection:** ±15kV (Human Body Model)  
- **Low Power Consumption:** 120µA (Quiescent Current)  
- **Common-Mode Input Voltage Range:** -7V to +12V  

### **Descriptions:**  
The MAX491EEPD+ is designed for bidirectional data communication on multipoint bus transmission lines (RS-485/RS-422). It features low power consumption, high-speed operation, and robust ESD protection, making it suitable for industrial and automotive applications.  

### **Features:**  
- **Low Power Shutdown Mode:** Reduces power consumption when not in use.  
- **Thermal Shutdown Protection:** Prevents damage from excessive heat.  
- **Short-Circuit Current Limiting:** Protects the device during fault conditions.  
- **Driver Output Enable/Disable Control:** Allows for flexible bus management.  
- **Receiver Fail-Safe Design:** Ensures a logic-high output when inputs are open or shorted.  

This transceiver is commonly used in industrial automation, building control systems, and long-distance communication networks.

Application Scenarios & Design Considerations

±15kV ESD-Protected, Slew-Rate-Limited, Low-Power, RS-485/RS-422 Transceivers

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