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MAX490ESA from MAXIM,MAXIM - Dallas Semiconductor

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MAX490ESA

Manufacturer: MAXIM

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

Partnumber Manufacturer Quantity Availability
MAX490ESA MAXIM 100 In Stock

Description and Introduction

Low-Power / Slew-Rate-Limited RS-485/RS-422 Transceivers The MAX490ESA is a low-power, slew-rate-limited RS-485/RS-422 transceiver manufactured by Maxim Integrated.  

### **Specifications:**  
- **Supply Voltage Range:** +4.75V to +5.25V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Data Rate:** Up to 2.5Mbps  
- **Low Quiescent Current:** 120µA (typical)  
- **Slew-Rate Limited for Reduced EMI**  
- **Half-Duplex Communication**  
- **ESD Protection:** ±15kV (Human Body Model)  
- **Package:** 8-pin SOIC (ESA)  

### **Descriptions and Features:**  
- Designed for RS-485 and RS-422 communication.  
- Features slew-rate-limited drivers to minimize EMI and reduce reflections in unterminated cables.  
- Includes a low-power shutdown mode (1µA typical).  
- Driver maintains high impedance in shutdown or with power off.  
- Receiver input impedance: ≥12kΩ (allows up to 32 transceivers on the bus).  
- Thermal shutdown protection for driver overheating.  
- Compatible with TTL and CMOS logic levels.  

This transceiver is commonly used in industrial control, automotive, and telecom applications requiring robust differential communication.

Application Scenarios & Design Considerations

Low-Power / Slew-Rate-Limited RS-485/RS-422 Transceivers
Partnumber Manufacturer Quantity Availability
MAX490ESA MAX 4500 In Stock

Description and Introduction

Low-Power / Slew-Rate-Limited RS-485/RS-422 Transceivers The MAX490ESA is a low-power, slew-rate-limited RS-485/RS-422 transceiver manufactured by Maxim Integrated.  

### **Specifications:**  
- **Supply Voltage:** +5V  
- **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:** Reduces EMI and reflections  
- **Low Power Consumption:**  
  - **Shutdown Current:** 1µA (max)  
  - **Quiescent Current:** 120µA (max)  
- **ESD Protection:** ±15kV (Human Body Model)  
- **Package:** 8-pin SOIC  

### **Descriptions:**  
- Designed for half-duplex RS-485/RS-422 communication.  
- Features slew-rate limiting for reduced EMI in noisy environments.  
- Includes a low-power shutdown mode for power-sensitive applications.  
- Robust ESD protection enhances reliability.  

### **Features:**  
- **Slew-Rate Limited for Low EMI**  
- **Low-Power Shutdown Mode**  
- **Enhanced ESD Protection (±15kV HBM)**  
- **Half-Duplex Operation**  
- **Wide Operating Temperature Range (-40°C to +85°C)**  
- **Industry-Standard Pinout**  

This transceiver is suitable for industrial, automotive, and communication applications requiring reliable data transmission.

Application Scenarios & Design Considerations

Low-Power / Slew-Rate-Limited RS-485/RS-422 Transceivers
Partnumber Manufacturer Quantity Availability
MAX490ESA MAXI 50 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

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