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MAX483 from MAX,MAXIM - Dallas Semiconductor

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MAX483

Manufacturer: MAX, MAXIM

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

Partnumber Manufacturer Quantity Availability
MAX483 MAX, MAXIM 54500 In Stock

Description and Introduction

Low-Power, Slew-Rate-Limited RS-485/RS-422 Transceivers The MAX483 is a low-power RS-485/RS-422 transceiver manufactured by Maxim Integrated. Below are its specifications, descriptions, and features:

### **Specifications:**
- **Supply Voltage:** +4.75V to +5.25V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Data Rate:** Up to 2.5Mbps  
- **Quiescent Current:** 120µA (typical)  
- **Shutdown Current:** 0.1µA (typical)  
- **Driver Output Current:** ±250mA (short-circuit protected)  
- **Receiver Input Impedance:** ≥12kΩ  
- **Receiver Input Sensitivity:** ±200mV  
- **Propagation Delay (Driver):** 30ns (typical)  
- **Propagation Delay (Receiver):** 50ns (typical)  

### **Descriptions:**
- The MAX483 is a low-power, slew-rate-limited transceiver designed for RS-485 and RS-422 communication.  
- It features reduced EMI and reflections due to its slew-rate-limited driver.  
- It includes a low-power shutdown mode that reduces current consumption to 0.1µA.  
- The device is designed for half-duplex communication.  

### **Features:**
- **Low Power Consumption:** 120µA quiescent current.  
- **Slew-Rate Limited:** Minimizes EMI and signal reflections.  
- **Shutdown Mode:** Reduces power to 0.1µA.  
- **Short-Circuit Protection:** Driver outputs are protected.  
- **Thermal Shutdown:** Prevents damage from excessive power dissipation.  
- **Compatible with RS-485 & RS-422 Standards.**  
- **Half-Duplex Operation.**  

The MAX483 is available in 8-pin DIP, SO, and µMAX packages.  

Would you like additional details on pin configurations or applications?

Application Scenarios & Design Considerations

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

Alternative Part Number

  • SN75176B --: Industry-standard RS-485/RS-422 transceiver, pin-compatible with MAX483 and widely available as a direct functional replacement.
  • SP485 --: Low-power RS-485 transceiver with the same 8-pin pinout and similar electrical characteristics, commonly used as a MAX483 substitute.
  • ST485 --: RS-485/RS-422 transceiver offering comparable data rate and driver/receiver functionality, suitable as a drop-in alternative.
  • SP483 --: Direct functional equivalent RS-485 transceiver with low-power shutdown, matching MAX483 pinout and specifications.
  • LTC485 --: Low-power RS-485 transceiver with similar electrical characteristics and pinout, suitable as an alternative to MAX483.

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