Precision, 8-Channel/Dual 4-Channel, High-Performance, CMOS Analog Multiplexers The MAX309EUE+ is a quad RS-422/RS-485 receiver manufactured by Maxim Integrated.  

### **Specifications:**  
- **Supply Voltage Range:** ±4.5V to ±5.5V (Dual Supply) or +4.5V to +5.5V (Single Supply)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Data Rate:** Up to 10Mbps  
- **Number of Receivers:** 4 (Quad)  
- **Input Type:** Differential  
- **Output Type:** CMOS/TTL  
- **Input Impedance:** ≥12kΩ (RS-485)  
- **ESD Protection:** ±15kV (Human Body Model)  
- **Package:** 16-TSSOP  

### **Descriptions:**  
The MAX309EUE+ is a high-speed, quad differential line receiver designed for RS-422 and RS-485 communication. It features fail-safe circuitry, ensuring a logic-high output when inputs are open, shorted, or terminated but not driven.  

### **Features:**  
- **Fail-Safe Operation:** Guarantees logic-high output with open, shorted, or unterminated inputs  
- **High-Speed Data Transmission:** Supports up to 10Mbps  
- **Low Power Consumption:** Typically 10mA supply current  
- **Wide Common-Mode Input Range:** ±12V  
- **Compatible with RS-422 and RS-485 Standards**  
- **ESD Protection on Bus Pins**  
- **CMOS/TTL-Compatible Outputs**  

This device is commonly used in industrial control, telecommunications, and networking applications.

Precision, 8-Channel/Dual 4-Channel, High-Performance, CMOS Analog Multiplexers