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LT1791CS from LINEAR

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LT1791CS

Manufacturer: LINEAR, LT

60V Fault Protected RS485/RS422 Transceivers

Partnumber Manufacturer Quantity Availability
LT1791CS LINEAR, LT 140 In Stock

Description and Introduction

60V Fault Protected RS485/RS422 Transceivers The LT1791CS is a precision, low-power operational amplifier manufactured by Linear Technology (now part of Analog Devices). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Supply Voltage Range:** ±1.25V to ±15V (2.5V to 30V single supply)  
- **Input Offset Voltage:** 50µV (max)  
- **Input Bias Current:** 10nA (max)  
- **Gain Bandwidth Product:** 1MHz  
- **Slew Rate:** 0.4V/µs  
- **Quiescent Current:** 600µA per amplifier  
- **Operating Temperature Range:** 0°C to +70°C  
- **Package:** 8-Lead SOIC (LT1791CS)  

### **Descriptions:**
- The LT1791CS is a high-precision, low-power op-amp optimized for battery-powered and precision signal conditioning applications.  
- It features low input offset voltage, low noise, and low power consumption, making it suitable for instrumentation and sensor applications.  
- The device is unity-gain stable and operates over a wide supply voltage range.  

### **Features:**
- Low input offset voltage (50µV max)  
- Low input bias current (10nA max)  
- Low quiescent current (600µA per amp)  
- Wide supply voltage range (2.5V to 30V)  
- Unity-gain stable  
- Low noise: 35nV/√Hz at 1kHz  
- Rail-to-rail output swing  
- Available in 8-Lead SOIC package  

The LT1791CS is commonly used in precision amplifiers, filters, data acquisition systems, and portable instrumentation.

Application Scenarios & Design Considerations

60V Fault Protected RS485/RS422 Transceivers

Alternative Part Number

  • SN65HVD230DR --: Pin-compatible CAN transceiver in SOIC-8 with similar 3.3V operation and widely available as a drop-in replacement.
  • MAX3051EKA+T --: CAN transceiver with comparable electrical characteristics and small package, suitable for the same bus interface role.
  • TJA1050T/CM,118 --: Industry-standard high-speed CAN transceiver with similar functionality and SOIC-8 footprint for easy substitution.
  • MAX3071EESA+ --: Pin-compatible RS-485/RS-422 transceiver with similar supply voltage and data rate, widely available and often used as a drop-in replacement for LT1791 in isolated/industrial buses.
  • SN65HVD72DR --: 3.3V RS-485 transceiver with comparable ESD protection and low power, suitable functional substitute when supply rail matches and layout is adjusted.
  • ADM485ARZ --: Classic 5V RS-485 transceiver with similar driver/receiver characteristics, a common alternate for LT1791 in legacy designs.

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