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LM3911N

LM3911 Temperature Controller

Partnumber Manufacturer Quantity Availability
LM3911N 5 In Stock

Description and Introduction

LM3911 Temperature Controller The LM3911N is a monolithic integrated circuit manufactured by **Texas Instruments** and **National Semiconductor**. It is designed for **analog sensor applications**, particularly for **temperature measurement and control**.  

### **Key Specifications:**  
- **Supply Voltage Range:** 4V to 40V  
- **Operating Temperature Range:** -25°C to +85°C  
- **Output Current:** Up to 30mA  
- **Reference Voltage:** 6.8V (internal bandgap reference)  
- **Temperature Coefficient:** Adjustable  
- **Package Type:** 8-Pin DIP (Dual Inline Package)  

### **Descriptions & Features:**  
- **Precision Temperature Sensor:** Provides a linear voltage output proportional to temperature.  
- **Internal Voltage Reference:** Includes a stable 6.8V bandgap reference for accurate measurements.  
- **Adjustable Gain & Offset:** Allows calibration for different temperature ranges.  
- **Low Power Consumption:** Suitable for battery-operated applications.  
- **Wide Supply Range:** Operates from 4V to 40V, making it versatile for various power supplies.  
- **Open-Collector Output:** Can drive external loads such as LEDs or relays.  

### **Applications:**  
- Temperature monitoring and control systems  
- Automotive and industrial sensors  
- Battery management systems  
- HVAC (Heating, Ventilation, and Air Conditioning) controls  

The LM3911N is an older IC but remains useful in analog temperature sensing applications. For newer alternatives, Texas Instruments offers updated ICs with enhanced features.

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