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MAX490ECSA from MAX,MAXIM - Dallas Semiconductor

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MAX490ECSA

Manufacturer: MAX, MAXIM, MAXIM, MAXIN

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

Partnumber Manufacturer Quantity Availability
MAX490ECSA MAX, MAXIM, MAXIM, MAXIN 1361 In Stock

Description and Introduction

15kV ESD-Protected / Slew-Rate-Limited / Low-Power / RS-485/RS-422 Transceivers The MAX490ECSA is a low-power, slew-rate-limited transceiver manufactured by Maxim Integrated (now part of Analog Devices). Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Manufacturer:**  
- Maxim Integrated (now part of Analog Devices)  

### **Specifications:**  
- **Part Number:** MAX490ECSA  
- **Package:** 8-Pin SOIC (Small Outline Integrated Circuit)  
- **Supply Voltage Range:** +4.5V to +5.5V  
- **Operating Temperature Range:** 0°C to +70°C  
- **Data Rate:** Up to 2.5Mbps  
- **Number of Drivers/Receivers:** 1 Driver, 1 Receiver  
- **Slew Rate Limited:** Reduces EMI and reflections in unterminated cables  
- **ESD Protection:** ±15kV (Human Body Model)  
- **Low Power Consumption:**  
  - **Supply Current (Active):** 120µA (typical)  
  - **Supply Current (Shutdown):** 0.1µA (typical)  

### **Description:**  
The MAX490ECSA is a low-power, slew-rate-limited RS-485/RS-422 transceiver designed for balanced communication. It is optimized for half-duplex applications and features reduced slew rates to minimize EMI and signal reflections, making it suitable for electrically noisy environments or unterminated transmission lines.  

### **Features:**  
- **Low Power Consumption:** Ideal for battery-powered applications.  
- **Slew-Rate Limited:** Reduces EMI and allows error-free data transmission.  
- **Half-Duplex Communication:** Supports bidirectional data transfer on a single twisted-pair line.  
- **Thermal Shutdown Protection:** Prevents damage during fault conditions.  
- **Receiver Fail-Safe:** Ensures a logic-high output when inputs are open or shorted.  
- **Compatible with RS-485/RS-422 Standards:** Suitable for industrial and long-distance communication.  
- **Wide Common-Mode Voltage Range:** ±-7V for noise immunity in differential signaling.  

This information is based on the manufacturer's datasheet and technical documentation. For detailed electrical characteristics and application notes, refer to the official datasheet from Analog Devices (formerly Maxim Integrated).

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 with the same 8-pin SOIC pinout and function, widely available and cost-effective.
  • SP485ECN-L --: Pin-compatible RS-485 transceiver in SOIC-8 with similar ESD and data-rate characteristics, direct functional drop-in.
  • ADM485ARZ --: Low-power RS-485 transceiver in SOIC-8 offering comparable performance and pinout compatibility for the same application.
  • ST485CDR --: RS-485/RS-422 transceiver in SOIC-8 offering comparable performance and pinout, suitable as a cost-effective second source.

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