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MAX490EESA from MAXIM,MAXIM - Dallas Semiconductor

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MAX490EESA

Manufacturer: MAXIM

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

Partnumber Manufacturer Quantity Availability
MAX490EESA MAXIM 25200 In Stock

Description and Introduction

15kV ESD-Protected / Slew-Rate-Limited / Low-Power / RS-485/RS-422 Transceivers The MAX490EESA is a low-power, slew-rate-limited RS-485/RS-422 transceiver manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Maxim Integrated (MAXIM)  
- **Part Number:** MAX490EESA  
- **Package:** 8-pin SOIC (Small Outline Integrated Circuit)  
- **Supply Voltage Range:** +4.75V to +5.25V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Data Rate:** Up to 2.5Mbps  
- **Number of Drivers/Receivers:** 1 Driver, 1 Receiver  
- **Slew Rate Limited:** Yes (Reduces EMI and reflections)  
- **Half-Duplex Operation:** Yes  
- **ESD Protection:** ±15kV (Human Body Model)  
- **Quiescent Current (Supply Current):** 120µA (Typical)  
- **Shutdown Current:** 0.1µA (Typical)  

### **Descriptions:**
- The MAX490EESA is designed for balanced data transmission in RS-485/RS-422 applications.  
- It features slew-rate-limited drivers to minimize EMI and reduce reflections in unterminated cables.  
- The device operates from a single +5V power supply and is optimized for low-power applications.  
- It includes thermal shutdown protection to prevent damage from excessive power dissipation.  

### **Features:**
- Low-power RS-485/RS-422 transceiver  
- Slew-rate-limited for reduced EMI  
- Half-duplex communication  
- Enhanced ESD protection (±15kV)  
- Thermal shutdown protection  
- Operates with a single +5V supply  
- Low shutdown current (0.1µA)  
- Industrial temperature range (-40°C to +85°C)  

This information is sourced from the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

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

Alternative Part Number

  • SN75176BDR --: Industry-standard RS-485/RS-422 transceiver in SOIC-8, pin-compatible with MAX490 and widely available as a drop-in replacement.
  • ADM485ARZ --: Low-power RS-485 transceiver in SOIC-8 with similar data rate and supply range, a well-established alternative from a major vendor.
  • ST485ECDR --: RS-485/RS-422 transceiver in SOIC-8 offering comparable performance and pinout, suitable as a cost-effective substitute.
  • SP485ECN-L --: RS-485 transceiver with enhanced ESD protection, compatible pinout and electrical characteristics for MAX490 applications.

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