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MAX1490EBEPG from MAXIM,MAXIM - Dallas Semiconductor

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MAX1490EBEPG

Manufacturer: MAXIM, MAXIM,MAXIM

15kV ESD-Protected, Isolated RS-485/RS-422

Partnumber Manufacturer Quantity Availability
MAX1490EBEPG MAXIM, MAXIM,MAXIM 50001 In Stock

Description and Introduction

15kV ESD-Protected, Isolated RS-485/RS-422 The MAX1490EBEPG is a high-speed, low-power, dual-channel digital isolator manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Manufacturer:** Maxim Integrated  
- **Part Number:** MAX1490EBEPG  
- **Package:** 20-Pin PDIP (Plastic Dual In-Line Package)  
- **Isolation Voltage:** 2.5kV RMS (UL 1577)  
- **Data Rate:** Up to 25Mbps  
- **Supply Voltage Range:** 3.0V to 5.5V  
- **Operating Temperature Range:** -40°C to +85°C  
- **Number of Channels:** 2 (Dual-Channel)  
- **Isolation Type:** Galvanic Isolation  
- **Propagation Delay:** 40ns (typical)  
- **Power Consumption:** Low power (typically 1.5mA per channel at 1Mbps)  
- **Common-Mode Transient Immunity:** >25kV/µs  

### **Descriptions:**  
The MAX1490EBEPG is a high-performance digital isolator designed for applications requiring robust noise immunity and high-speed data transmission across an isolation barrier. It uses Maxim’s proprietary capacitive isolation technology to provide reliable signal isolation while maintaining low power consumption.  

### **Features:**  
- High-speed data transmission (up to 25Mbps)  
- Low propagation delay (40ns typical)  
- High common-mode transient immunity (>25kV/µs)  
- Wide supply voltage range (3.0V to 5.5V)  
- Low power consumption (1.5mA per channel at 1Mbps)  
- UL 1577 recognized (2.5kV RMS isolation)  
- Reinforced isolation for safety compliance  
- Bidirectional communication support  
- Robust ESD protection (±15kV Human Body Model)  

This device is commonly used in industrial automation, medical equipment, motor control, and other applications requiring high-speed isolated data transfer.

Application Scenarios & Design Considerations

15kV ESD-Protected, Isolated RS-485/RS-422

Alternative Part Number

  • ADM2490EBRWZ --: Isolated RS-485/RS-422 transceiver with the same function and pinout family; Analog Devices acquired Maxim, so this is a direct lineage alternative with similar isolation rating and data rate.
  • SN65HVD230 --: Widely available RS-485 transceiver from a different series and vendor; suitable when full galvanic isolation is not mandatory, offering a cost-effective drop-in style solution.
  • ISO3082DW --: Isolated RS-485 transceiver with integrated isolation, providing a functionally equivalent alternative from a clearly different naming series for designs needing isolation.
  • SN65HVD2490 --: Isolated full-duplex RS-485 transceiver offering comparable isolation rating and data rate, suitable as a direct functional replacement.
  • ISO3082 --: Isolated RS-485 transceiver with similar isolation and signaling characteristics, usable as a cross-vendor alternative with minor layout review.

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