Serially Controlled, Low-Voltage, 8-Channel Dual 4-Channel Multiplexers The **MAX349CAP+** is a quad RS-422/RS-485 differential line receiver manufactured by **Maxim Integrated** (now part of Analog Devices). Below are its key specifications, descriptions, and features:
### **Specifications:**
- **Manufacturer:** Maxim Integrated (Analog Devices)
- **Type:** Quad RS-422/RS-485 Receiver
- **Number of Receivers:** 4
- **Data Rate:** Up to **10Mbps**
- **Supply Voltage Range:** **±4.5V to ±5.5V** (Dual Supply) or **+4.5V to +5.5V** (Single Supply)
- **Input Common-Mode Voltage Range:** **±12V**
- **Propagation Delay:** **20ns (typical)**
- **Operating Temperature Range:** **0°C to +70°C**
- **Package:** **20-Pin PDIP (Plastic Dual In-Line Package)**
- **ESD Protection:** **±15kV (Human Body Model)**
### **Descriptions:**
- The MAX349CAP+ is designed for high-speed differential data communication in **RS-422/RS-485** applications.
- It features **four independent receivers** with **fail-safe circuitry**, ensuring a logic-high output when inputs are open or shorted.
- Suitable for **industrial, telecom, and networking systems** requiring robust noise immunity.
### **Features:**
- **High-Speed Operation:** Supports **10Mbps** data rates.
- **Wide Common-Mode Range:** **±12V** allows operation in noisy environments.
- **Low Power Consumption:** Typically **5mA supply current per receiver**.
- **Fail-Safe Design:** Ensures a **logic-high output** with open or terminated inputs.
- **ESD Protection:** **±15kV** HBM protection on bus pins.
- **Compatible with 3.3V and 5V Logic.**
For detailed electrical characteristics and application notes, refer to the official **Maxim Integrated datasheet**.
