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MAX481ESA from MAXIM,MAXIM - Dallas Semiconductor

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MAX481ESA

Manufacturer: MAXIM, MAX

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

Partnumber Manufacturer Quantity Availability
MAX481ESA MAXIM, MAX 5415 In Stock

Description and Introduction

Low-Power / Slew-Rate-Limited RS-485/RS-422 Transceivers The MAX481ESA is a low-power transceiver manufactured by Maxim Integrated (now part of Analog Devices). Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:  

### **Specifications:**  
- **Manufacturer:** Maxim Integrated (now Analog Devices)  
- **Part Number:** MAX481ESA  
- **Package:** 8-SOIC (Small Outline Integrated Circuit)  
- **Supply Voltage Range:** +4.5V to +5.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Data Rate:** Up to 2.5Mbps  
- **Number of Drivers/Receivers:** 1 Driver, 1 Receiver  
- **ESD Protection:** ±15kV (Human Body Model)  
- **Quiescent Current (Shutdown Mode):** <1µA  
- **Quiescent Current (Active Mode):** 120µA (typical)  

### **Description:**  
The MAX481ESA is a low-power, slew-rate-limited RS-485/RS-422 transceiver designed for half-duplex communication. It features a single driver and receiver, making it suitable for applications requiring bidirectional data transmission over long distances with noise immunity.  

### **Features:**  
- **Low Power Consumption:**  
  - 120µA supply current (active mode)  
  - <1µA in shutdown mode  
- **Slew-Rate Limited for Reduced EMI:**  
  - Minimizes reflections in unterminated cables  
- **Enhanced ESD Protection:**  
  - ±15kV on driver outputs and receiver inputs  
- **Wide Common-Mode Voltage Range:**  
  - -7V to +12V for robust noise immunity  
- **Short-Circuit Current Limitation:**  
  - Protects driver outputs during faults  
- **Compatible with RS-485 & RS-422 Standards**  
- **Half-Duplex Operation**  

This information is strictly based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

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

Alternative Part Number

  • SN75176BDR --: Industry-standard RS-485/RS-422 transceiver in SOIC-8, pin-compatible with MAX481 and widely available from multiple sources.
  • ADM485ARZ --: Low-power RS-485 transceiver in SOIC-8 with similar data rate and supply range, a direct functional replacement for the MAX481.
  • SP485ECN-L --: RS-485 transceiver in SOIC-8 with enhanced ESD protection, pin-compatible and commonly used as a MAX481 substitute.
  • ST485EBDR --: Low-power RS-485/RS-422 transceiver in SOIC-8 offering equivalent half-duplex operation and comparable electrical characteristics.

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