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LM139JB from NSC,National Semiconductor

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LM139JB

Manufacturer: NSC

Quad, General Purpose Differential Comparator

Partnumber Manufacturer Quantity Availability
LM139JB NSC 2018 In Stock

Description and Introduction

Quad, General Purpose Differential Comparator The LM139JB is a quad voltage comparator manufactured by National Semiconductor (NSC).  

### **Specifications:**  
- **Supply Voltage Range:** 2V to 36V (single supply) or ±1V to ±18V (dual supply)  
- **Low Supply Current:** 0.8mA (typical) per comparator  
- **Input Offset Voltage:** 2mV (typical), 5mV (maximum)  
- **Input Bias Current:** 25nA (typical)  
- **Response Time:** 1.3μs (typical) for 5mV overdrive  
- **Operating Temperature Range:** -25°C to +85°C  
- **Output Type:** Open-collector (requires pull-up resistor)  
- **Package:** 14-pin ceramic DIP (JB suffix)  

### **Descriptions and Features:**  
- **Quad Independent Comparators:** Contains four independent precision voltage comparators.  
- **Wide Voltage Range:** Operates from single or dual power supplies.  
- **Low Power Consumption:** Suitable for battery-powered applications.  
- **High Gain:** Provides high gain for fast response times.  
- **Compatible with TTL, CMOS, and MOS Logic:** Open-collector output allows flexible interfacing.  
- **Stable Operation:** Designed for reliable performance in harsh environments.  

This device is commonly used in industrial, automotive, and consumer applications for voltage monitoring, level detection, and signal conditioning.

Application Scenarios & Design Considerations

Quad, General Purpose Differential Comparator
Partnumber Manufacturer Quantity Availability
LM139JB TI 59 In Stock

Description and Introduction

Quad, General Purpose Differential Comparator The LM139JB is a quad independent precision voltage comparator manufactured by Texas Instruments (TI).  

**Key Specifications:**  
- **Supply Voltage Range:** 2V to 36V (single supply) or ±1V to ±18V (dual supply)  
- **Low Input Bias Current:** 25nA (typical)  
- **Low Input Offset Current:** 5nA (typical)  
- **Low Input Offset Voltage:** 2mV (typical)  
- **Differential Input Voltage Range:** Equal to the supply voltage  
- **Output Voltage Swing:** Compatible with TTL, MOS, and CMOS logic  
- **Operating Temperature Range:** -25°C to +85°C  
- **Package Type:** Ceramic DIP (J package)  

**Features:**  
- Four independent comparators in a single package  
- Wide single-supply or dual-supply operation  
- Low power consumption  
- ESD Clamp diodes on inputs for protection  
- Compatible with standard logic families  

**Applications:**  
- Voltage monitoring  
- Level shifting  
- Analog-to-digital conversion  
- Oscillator circuits  
- Industrial control systems  

The LM139JB is designed for precision applications requiring stable performance over a wide voltage range.

Application Scenarios & Design Considerations

Quad, General Purpose Differential Comparator

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