Overview
The LM239N is a quad differential comparator manufactured by Texas Instruments. It belongs to the LMx39/LM2901 series, designed for single-supply operation across a wide voltage range. This component is widely used in applications requiring precise voltage comparisons, such as industrial control systems, consumer electronics, and automotive electronics. Its open-collector outputs and low power consumption make it a versatile choice for designers seeking reliable and efficient voltage comparison solutions.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Installation Type | Through Hole | - | - |
| Pin Count | 14 | - | PDIP-14 |
| Supply Voltage | 2V ~ 36V | V | - |
| Output Current | 20 | mA | - |
| Supply Current | 2 | mA | - |
| Number of Circuits | 4 | - | - |
| Number of Channels | 4 | - | - |
| Power Dissipation | 1050 | mW | - |
| Quiescent Current | 800 | µA | - |
| Input Offset Voltage | 5 | mV | - |
| Input Bias Current | 250 | nA | - |
| Operating Temperature | -25℃ ~ 85℃ | ℃ | - |
Key Features
- Quad differential comparator with open-collector outputs.
- Wide supply voltage range (2V to 36V).
- Low power consumption with a quiescent current of 800 µA.
- Designed for single-supply operation.
- High ESD protection and input durability.
Applications
The LM239N is commonly used in applications such as voltage level detection, window comparators, and analog-to-digital converters. Its robust design makes it suitable for industrial automation, automotive electronics, and consumer electronics, where precise voltage comparisons are critical. Additionally, its open-collector outputs allow for easy interfacing with other digital or analog systems.
Q & A
1. What is the operating voltage range of the LM239N?
The LM239N operates within a voltage range of 2V to 36V.
2. How many comparators are integrated into the LM239N?
The LM239N integrates four independent comparators.
3. What is the output type of the LM239N?
The LM239N features open-collector outputs.
4. What is the typical quiescent current of the LM239N?
The typical quiescent current is 800 µA.
5. Can the LM239N be used in automotive applications?
Yes, the LM239N is suitable for automotive electronics due to its robust design and wide operating temperature range.
6. What is the power dissipation of the LM239N?
The power dissipation is 1050 mW.
7. Is the LM239N compatible with TTL logic?
Yes, the open-collector outputs are compatible with TTL, MOS, and CMOS logic.
8. What is the input offset voltage of the LM239N?
The input offset voltage is typically 5 mV.
9. What is the package type of the LM239N?
The LM239N is available in a PDIP-14 package.
10. Can the LM239N operate in a single-supply configuration?
Yes, the LM239N is designed for single-supply operation.
