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MAX485 from MAXIM,MAXIM - Dallas Semiconductor

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15.137ms

MAX485

Manufacturer: MAXIM

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

Partnumber Manufacturer Quantity Availability
MAX485 MAXIM 50000 In Stock

Description and Introduction

Low-Power, Slew-Rate-Limited RS-485/RS-422 Transceivers The MAX485 is a low-power transceiver for RS-485 and RS-422 communication, manufactured by Maxim Integrated (now part of Analog Devices).  

### **Specifications:**  
- **Supply Voltage:** 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  
- **Half-Duplex Communication**  
- **Low Power Consumption:**  
  - **Supply Current (Quiescent):** 120µA (typical)  
  - **Shutdown Current:** 0.1µA (typical)  
- **ESD Protection:** ±15kV (Human Body Model)  
- **Receiver Input Impedance:** ≥12kΩ  
- **Driver Output Voltage (Differential):** ±1.5V (min)  
- **Common-Mode Input Voltage Range:** -7V to +12V  

### **Descriptions:**  
The MAX485 is designed for balanced data transmission and complies with RS-485 and RS-422 standards. It features slew-rate-limited drivers to reduce EMI and minimize reflections in improperly terminated cables. The device operates in half-duplex mode, allowing bidirectional communication over a single twisted-pair cable.  

### **Features:**  
- **Low-Power Shutdown Mode**  
- **Slew-Rate Limited for Reduced EMI**  
- **Thermal Shutdown Protection**  
- **Driver Short-Circuit Current Limiting**  
- **Receiver Open-Circuit Fail-Safe**  
- **Compatible with 3.3V and 5V Systems**  

The MAX485 is commonly used in industrial control systems, building automation, and other applications requiring robust serial communication.

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