Overview
The LM339M is a quad differential comparator produced by National Semiconductor. It is designed for use in a wide range of applications that require precision voltage comparisons. The LM339M is part of the LM339 series, which is renowned for its low power consumption, high accuracy, and versatility. This model is particularly suitable for industrial, automotive, and consumer electronics applications where reliable and efficient voltage comparison is essential. Its unique selling points include its low input bias current, wide supply voltage range, and compatibility with both single and dual power supplies.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage | 2 to 36 | V | Single or dual supply |
| Input Bias Current | 25 | nA | Typical |
| Response Time | 1.3 | μs | Typical |
| Operating Temperature Range | 0 to +70 | °C | Commercial grade |
| Package Type | SOIC-14 | - | Surface mount |
| Output Current | 16 | mA | Maximum |
| Input Offset Voltage | 2 | mV | Maximum |
| Common Mode Input Voltage Range | 0 to Vcc-1.5 | V | - |
Key Features
- Low Power Consumption: Ideal for battery-operated devices.
- Wide Supply Voltage Range: Compatible with a variety of power sources.
- High Accuracy: Ensures precise voltage comparisons.
- Versatile Applications: Suitable for industrial, automotive, and consumer electronics.
- Surface Mount Package: Facilitates compact and efficient PCB designs.
Applications
The LM339M is widely used in various fields, including:
- Industrial Automation: For monitoring and control systems requiring precise voltage comparisons.
- Automotive Electronics: In vehicle control systems and sensors.
- Consumer Electronics: In devices such as battery chargers and power management systems.
- Test and Measurement Equipment: For accurate signal detection and comparison.
Q & A
1. What is the supply voltage range for the LM339M?
The LM339M operates with a supply voltage range of 2 to 36 volts, making it compatible with both single and dual power supplies.
2. What is the typical input bias current of the LM339M?
The typical input bias current is 25 nA.
3. What is the response time of the LM339M?
The typical response time is 1.3 μs.
4. What is the operating temperature range for the LM339M?
The LM339M operates within a temperature range of 0 to +70°C, suitable for commercial applications.
5. What package type does the LM339M come in?
The LM339M is available in an SOIC-14 surface mount package.
6. What is the maximum output current of the LM339M?
The maximum output current is 16 mA.
7. What is the maximum input offset voltage of the LM339M?
The maximum input offset voltage is 2 mV.
8. What is the common mode input voltage range of the LM339M?
The common mode input voltage range is 0 to Vcc-1.5 volts.
9. Can the LM339M be used in automotive applications?
Yes, the LM339M is suitable for automotive electronics, including vehicle control systems and sensors.
10. Is the LM339M suitable for battery-operated devices?
Yes, the LM339M's low power consumption makes it ideal for battery-operated devices.
