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LM139AJB from TI,Texas Instruments

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LM139AJB

Manufacturer: TI

Quad, General Purpose Differential Comparator

Partnumber Manufacturer Quantity Availability
LM139AJB TI 50 In Stock

Description and Introduction

Quad, General Purpose Differential Comparator The LM139AJB is a quad independent precision voltage comparator manufactured by Texas Instruments (TI).  

### **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 (max)  
- **Input Bias Current:** 25nA (max)  
- **Response Time:** 1.3μs (typical)  
- **Operating Temperature Range:** -25°C to +85°C  
- **Output Type:** Open-collector (requires pull-up resistor)  
- **Package:** Ceramic DIP (J package)  

### **Descriptions & Features:**  
- **Quad Independent Comparators:** Four independent voltage comparators in a single package.  
- **Wide Supply Voltage Range:** Operates from single or dual power supplies.  
- **Low Power Consumption:** Suitable for battery-powered applications.  
- **High Accuracy:** Low input offset voltage and bias current.  
- **Open-Collector Outputs:** Allows flexible output voltage levels with external pull-up resistors.  
- **Common-Mode Input Range:** Includes ground when operating from a single supply.  
- **Applications:** Voltage monitoring, level shifting, oscillators, analog-to-digital conversion, and industrial control systems.  

This information is based on the manufacturer's datasheet and specifications.

Application Scenarios & Design Considerations

Quad, General Purpose Differential Comparator
Partnumber Manufacturer Quantity Availability
LM139AJB NSC 2016 In Stock

Description and Introduction

Quad, General Purpose Differential Comparator The LM139AJB is a quad voltage comparator manufactured by National Semiconductor (NSC). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** National Semiconductor (NSC)  
- **Type:** Quad Differential Comparator  
- **Number of Channels:** 4  
- **Supply Voltage Range:** ±1V to ±18V (Dual Supply) or 2V to 36V (Single Supply)  
- **Input Offset Voltage:** 2mV (Typical), 5mV (Maximum)  
- **Input Bias Current:** 25nA (Typical)  
- **Response Time:** 1.3μs (Typical)  
- **Operating Temperature Range:** -25°C to +85°C  
- **Package:** Ceramic DIP (Dual In-line Package)  
- **Output Type:** Open Collector  
- **Output Current (Sink):** 6mA (Minimum)  
- **Common Mode Rejection Ratio (CMRR):** 80dB (Typical)  
- **Power Supply Rejection Ratio (PSRR):** 100dB (Typical)  

### **Descriptions:**
- The LM139AJB is a quad independent precision voltage comparator designed for analog signal comparison.  
- It features low input offset voltage and bias current, making it suitable for precision applications.  
- The open-collector outputs allow for flexible interfacing with different logic levels.  
- It operates over a wide voltage range, supporting both single and dual power supplies.  

### **Features:**
- **Wide Supply Voltage Range:** Compatible with single and dual supplies.  
- **Low Input Bias Current:** Minimizes errors in high-impedance circuits.  
- **Low Power Consumption:** Suitable for battery-operated devices.  
- **High Gain:** Ensures accurate comparison even with small input differences.  
- **Stable Operation:** Designed for reliable performance in industrial and automotive environments.  
- **Open-Collector Outputs:** Allows for wired-OR configurations and easy interfacing with TTL, CMOS, and other logic families.  

This information is based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

Quad, General Purpose Differential Comparator

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