Overview
The LM139AJRLQMLV is a quad voltage comparator integrated circuit produced by National Semiconductor, now part of Texas Instruments. This device is designed to operate from a single power supply or dual supplies over a wide range of voltages, making it versatile for various applications. The LM139AJRLQMLV is characterized for operation over the full military temperature range of –55°C to 125°C, ensuring reliability in harsh environments.
Key Specifications
| Parameter | Min | Typical | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (Single) | 2 | - | 36 | V |
| Supply Voltage (Dual) | ±1 | - | ±18 | V |
| Supply Current | 1.1 | 1.3 | 2.5 | mA |
| Input Bias Current | 25 | - | 300 | nA |
| Input Offset Current | 3 | - | 100 | nA |
| Input Offset Voltage | 1 | - | 5 | mV |
| Common-Mode Input Voltage Range | 0 | - | VCC - 1.5 | V |
| Differential Input Voltage Range | -36 | - | 36 | V |
| Output Saturation Voltage | 250 | - | 700 | mV |
| Response Time | 1.3 | - | - | μs |
Key Features
- Wide supply voltage range: Single supply from 2 V to 36 V, or dual supplies from ±1 V to ±18 V.
- Low supply current: Independent of supply voltage, typically 0.8 mA to 1.3 mA.
- Low input bias current: Typically 25 nA.
- Low input offset current and voltage: Typically 3 nA and 2 mV, respectively.
- Common-mode input voltage range includes ground.
- Differential input voltage range equal to the maximum-rated supply voltage.
- Output compatible with TTL, DTL, ECL, MOS, and CMOS.
- Low output saturation voltage: Typically 250 mV.
Applications
The LM139AJRLQMLV is suitable for a variety of applications due to its versatility and robust specifications. These include:
- Industrial control systems where precise voltage comparisons are necessary.
- Aerospace and military applications due to its compliance with military temperature ranges.
- Automotive systems requiring reliable voltage comparison over a wide range of temperatures.
- Medical devices where low power consumption and high accuracy are critical.
- General-purpose analog circuits requiring multiple voltage comparators.
Q & A
- What is the LM139AJRLQMLV?
The LM139AJRLQMLV is a quad voltage comparator integrated circuit produced by National Semiconductor.
- What are the supply voltage ranges for the LM139AJRLQMLV?
The device can operate from a single supply of 2 V to 36 V or dual supplies from ±1 V to ±18 V.
- What is the typical supply current of the LM139AJRLQMLV?
The typical supply current is 0.8 mA to 1.3 mA, independent of the supply voltage.
- What is the input bias current of the LM139AJRLQMLV?
The typical input bias current is 25 nA.
- Is the LM139AJRLQMLV compatible with other logic families?
Yes, it is compatible with TTL, DTL, ECL, MOS, and CMOS outputs.
- What is the response time of the LM139AJRLQMLV?
The response time is typically 1.3 μs.
- What are the operating temperature ranges for the LM139AJRLQMLV?
The device operates over the full military temperature range of –55°C to 125°C.
- Can the LM139AJRLQMLV be used in industrial control systems?
Yes, it is suitable for industrial control systems due to its precise voltage comparison capabilities.
- Is the LM139AJRLQMLV suitable for aerospace applications?
Yes, it is compliant with military temperature ranges, making it suitable for aerospace and military applications.
- What is the differential input voltage range of the LM139AJRLQMLV?
The differential input voltage range is equal to the maximum-rated supply voltage, up to ±36 V.
