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MAX490ESA from MAXIM,MAXIM - Dallas Semiconductor

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MAX490ESA

Manufacturer: MAXIM, MAX, MAXI

Low-Power / Slew-Rate-Limited RS-485/RS-422 Transceivers

Partnumber Manufacturer Quantity Availability
MAX490ESA MAXIM, MAX, MAXI 4650 In Stock

Description and Introduction

Low-Power / Slew-Rate-Limited RS-485/RS-422 Transceivers The MAX490ESA is a low-power, quad RS-422/RS-423 line driver/receiver manufactured by Maxim Integrated (now part of Analog Devices).  

### **Specifications:**  
- **Manufacturer:** Maxim Integrated (now Analog Devices)  
- **Type:** Quad RS-422/RS-423 Line Driver/Receiver  
- **Supply Voltage:** ±4.5V to ±5.5V (Dual Supply)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 8-pin SOIC (Small Outline Integrated Circuit)  
- **Data Rate:** Up to 2.5Mbps  
- **Number of Drivers/Receivers:** 4 Drivers / 4 Receivers  
- **ESD Protection:** ±15kV (Human Body Model)  
- **Low Power Consumption:** Typically 5mA per Driver/Receiver  

### **Descriptions:**  
The MAX490ESA is designed for balanced (RS-422) and unbalanced (RS-423) data transmission applications. It features four independent driver/receiver pairs with high-speed operation and low power consumption. The device is suitable for industrial, telecom, and networking applications requiring reliable data communication over long distances.  

### **Features:**  
- **Low Power Consumption:** Ideal for battery-powered applications.  
- **High-Speed Data Transmission:** Supports up to 2.5Mbps.  
- **Wide Supply Range:** Operates from ±4.5V to ±5.5V.  
- **ESD Protection:** Robust ±15kV ESD protection on driver outputs and receiver inputs.  
- **Fail-Safe Receiver Inputs:** Ensures logic-high output when inputs are open or shorted.  
- **Industrial Temperature Range:** Operates from -40°C to +85°C.  
- **Compact SOIC Package:** Space-saving 8-pin package.  

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

Application Scenarios & Design Considerations

Low-Power / Slew-Rate-Limited 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 from multiple sources.
  • ADM485ARZ --: Low-power RS-485 transceiver in SOIC-8 with similar data rate and supply range, a common drop-in alternative to the MAX490.
  • ST485ECDR --: RS-485/RS-422 transceiver in SOIC-8 offering comparable performance and pinout, suitable as a cost-effective replacement.
  • SP485ECN-L --: RS-485 transceiver in SOIC-8 with comparable performance and pinout, suitable drop-in replacement for MAX490ESA.

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