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LTC1385IG

Manufacturer: LT, LINEAR

3.3V Low Power EIA/TIA-562 Transceiver

Partnumber Manufacturer Quantity Availability
LTC1385IG LT, LINEAR 619 In Stock

Description and Introduction

3.3V Low Power EIA/TIA-562 Transceiver The LTC1385IG is a low-power RS485/RS422 transceiver manufactured by Linear Technology (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Manufacturer:**  
- Linear Technology (now part of Analog Devices)

### **Part Number:**  
- LTC1385IG  

### **Description:**  
- A low-power, half-duplex RS485/RS422 transceiver with enhanced ESD protection.  
- Designed for multipoint data transmission over long cables in noisy environments.  
- Operates from a single 5V supply.  

### **Key Features:**  
1. **Low Power Consumption:**  
   - 300µA quiescent current (typical).  
   - Shutdown mode reduces current to 0.1µA (typical).  

2. **High-Speed Data Transmission:**  
   - Supports data rates up to **250kbps**.  

3. **Enhanced ESD Protection:**  
   - ±15kV Human Body Model (HBM) on transceiver pins.  

4. **Half-Duplex Operation:**  
   - Single differential driver and receiver pair.  

5. **Wide Common-Mode Range:**  
   - ±10V for robust noise immunity.  

6. **Thermal Shutdown Protection:**  
   - Prevents damage from excessive power dissipation.  

7. **Driver Output Short-Circuit Protection:**  
   - Withstands indefinite short-circuit conditions.  

8. **Receiver Fail-Safe Design:**  
   - Ensures a logic-high output when inputs are open, shorted, or terminated but not driven.  

9. **Package:**  
   - 20-lead SSOP (Shrink Small Outline Package).  

10. **Operating Temperature Range:**  
    - **Industrial Grade:** **-40°C to +85°C**.  

### **Applications:**  
- Industrial control systems.  
- Long-distance data transmission.  
- Multipoint RS485/RS422 networks.  
- Battery-powered equipment.  

For detailed electrical characteristics, refer to the official datasheet from Analog Devices.

Application Scenarios & Design Considerations

3.3V Low Power EIA/TIA-562 Transceiver

Alternative Part Number

  • MAX3221ECAE+ --: Single-channel RS-232 transceiver in a similar SSOP package with comparable supply voltage and data rate, suitable as a functional replacement.
  • SP3223ECY-L --: RS-232 transceiver offering similar driver/receiver count and supply range, commonly used as a cross to LTC1385-class parts.
  • ST3222ECDR --: Low-power RS-232 transceiver with comparable interface characteristics and package options, usable as an alternative with minor layout checks.
  • SP3223ECA-L --: RS-232 transceiver with auto-shutdown and similar pinout/package options, suitable as a drop-in style replacement for low-power serial interfaces.
  • ADM3202ARNZ --: Widely available RS-232 transceiver with comparable data rate and supply voltage range, commonly used as an alternative in serial communication designs.

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