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MAX491ECSD from MAX,MAXIM - Dallas Semiconductor

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MAX491ECSD

Manufacturer: MAX

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

Partnumber Manufacturer Quantity Availability
MAX491ECSD MAX 221 In Stock

Description and Introduction

15kV ESD-Protected / Slew-Rate-Limited / Low-Power / RS-485/RS-422 Transceivers The MAX491ECSD is a low-power transceiver manufactured by Maxim Integrated (now part of Analog Devices). Below are the factual details about its specifications, descriptions, and features:  

### **Manufacturer:** Maxim Integrated (Analog Devices)  
### **Part Number:** MAX491ECSD  

### **Description:**  
The MAX491ECSD is a low-power, RS-422/RS-485-compliant transceiver designed for bidirectional data communication. It operates with a single +5V power supply and is suitable for half-duplex applications.  

### **Key Features:**  
- **Compliance:** Meets RS-422 and RS-485 standards.  
- **Supply Voltage:** Single +5V operation.  
- **Low Power Consumption:**  
  - 300µA supply current (typical) in shutdown mode.  
  - 2.5mA supply current (typical) in unloaded conditions.  
- **Data Rate:** Up to 2.5Mbps.  
- **Half-Duplex Operation:** Supports bidirectional communication on a single twisted-pair line.  
- **ESD Protection:** ±15kV Human Body Model (HBM) on driver outputs and receiver inputs.  
- **Thermal Shutdown Protection:** Prevents damage from excessive power dissipation.  
- **Receiver Fail-Safe:** Ensures a logic-high output when inputs are open, shorted, or terminated.  
- **Package:** 14-pin SOIC (Small Outline Integrated Circuit).  

### **Applications:**  
- Industrial control systems  
- RS-485/RS-422 networks  
- Automated test equipment  
- Building automation  

This information is based solely on the manufacturer's datasheet and specifications.

Application Scenarios & Design Considerations

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

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