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MAX309 from MAX,MAXIM - Dallas Semiconductor

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MAX309

Manufacturer: MAX

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

Partnumber Manufacturer Quantity Availability
MAX309 MAX 147 In Stock

Description and Introduction

Precision, 8-Channel/Dual 4-Channel, High-Performance, CMOS Analog Multiplexers The MAX309 is a quad RS-422/RS-485 receiver manufactured by Maxim Integrated (now part of Analog Devices).  

### **Key Specifications:**  
- **Supply Voltage:** 4.75V to 5.25V  
- **Data Rate:** Up to 10Mbps  
- **Number of Receivers:** 4  
- **Input Type:** Differential (RS-422/RS-485 compatible)  
- **Input Impedance:** ≥12kΩ (RS-485 mode)  
- **Propagation Delay:** 20ns (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Options:** 16-pin DIP, SO, and TSSOP  

### **Descriptions & Features:**  
- **Fail-Safe Biasing:** Ensures a known output state when inputs are open, shorted, or idle.  
- **High Noise Immunity:** Suitable for industrial environments.  
- **Low Power Consumption:** Typically 20mA supply current.  
- **ESD Protection:** ±15kV Human Body Model (HBM) on I/O pins.  
- **Wide Common-Mode Range:** ±7V, allowing robust communication in noisy conditions.  
- **Compliance:** Meets EIA/TIA-422-B and EIA/TIA-485-A standards.  

The MAX309 is commonly used in industrial control, telecommunications, and data acquisition systems requiring reliable differential communication.

Application Scenarios & Design Considerations

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

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