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LM239

Low Power Low Offset Voltage Quad Comparator

Partnumber Manufacturer Quantity Availability
LM239 40 In Stock

Description and Introduction

Low Power Low Offset Voltage Quad Comparator The LM239 is a quad differential comparator manufactured by several companies, including Texas Instruments, ON Semiconductor, and STMicroelectronics. Below are the key specifications, descriptions, and features based on the manufacturer datasheets:

### **Specifications:**  
- **Number of Channels:** 4 (Quad)  
- **Supply Voltage Range:**  
  - Single Supply: 2V to 36V  
  - Dual Supply: ±1V to ±18V  
- **Input Offset Voltage:** 2mV (typical), 5mV (max)  
- **Input Bias Current:** 25nA (typical)  
- **Response Time:** 1.3μs (typical)  
- **Output Type:** Open-Collector  
- **Output Current (Sink):** 16mA (min)  
- **Operating Temperature Range:**  
  - Commercial: 0°C to +70°C  
  - Industrial: -40°C to +85°C  
  - Military: -55°C to +125°C (LM239A)  

### **Description:**  
The LM239 consists of four independent precision voltage comparators designed to operate from a single power supply over a wide voltage range. It features low input bias current and offset voltage, making it suitable for industrial, automotive, and consumer applications.  

### **Features:**  
- **Wide Supply Voltage Range:** Compatible with single and dual supplies.  
- **Low Input Bias Current:** Minimizes errors in high-impedance circuits.  
- **Low Input Offset Voltage:** Ensures accuracy in comparison applications.  
- **Open-Collector Outputs:** Allows flexible output voltage levels with external pull-up resistors.  
- **ESD Protection:** Improved robustness against electrostatic discharge.  
- **Common-Mode Input Range:** Includes ground, enabling ground-referenced signals.  

The LM239 is commonly used in voltage monitoring, level detection, oscillators, and analog-to-digital conversion circuits.  

(Note: Exact specifications may vary slightly between manufacturers. Always refer to the specific datasheet for detailed information.)

Application Scenarios & Design Considerations

Low Power Low Offset Voltage Quad Comparator

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