LM339DG4

Product Overview

Category: Integrated Circuits (ICs)

Use: LM339DG4 is a quad voltage comparator that is commonly used in various electronic circuits for comparing voltages and making decisions based on the comparison results.

Characteristics: - Low power consumption - Wide supply voltage range - High input impedance - Open collector outputs - Fast response time

Package: The LM339DG4 is available in a small outline package (SOIC) with 14 pins.

Essence: The essence of LM339DG4 lies in its ability to compare multiple input voltages and provide corresponding output signals based on the comparison results.

Packaging/Quantity: The LM339DG4 is typically sold in reels or tubes, with each reel containing 2500 units.

Specifications

• Supply Voltage Range: 2V to 36V
• Input Offset Voltage: 2mV (maximum)
• Input Bias Current: 25nA (maximum)
• Response Time: 1.3μs (typical)
• Output Sink Current: 16mA (maximum)

Pin Configuration

The LM339DG4 has a total of 14 pins, which are assigned specific functions as follows:

1. Output 1
2. Inverting Input 1
3. Non-Inverting Input 1
4. Ground
5. Non-Inverting Input 2
6. Inverting Input 2
7. Output 2
8. VCC+
9. Output 3
10. Inverting Input 3
11. Non-Inverting Input 3
12. Output 4
13. Inverting Input 4
14. Non-Inverting Input 4

Functional Features

• Quad voltage comparator: Allows for simultaneous comparison of up to four input voltages.
• Open collector outputs: Facilitates easy interfacing with other digital circuits.
• Wide supply voltage range: Can operate from low to high voltage power supplies.
• Low power consumption: Ideal for battery-powered applications.
• High input impedance: Minimizes loading effects on the input signals.

Advantages and Disadvantages

Advantages: - Versatile and widely used in various electronic circuits. - Fast response time enables quick decision-making based on voltage comparisons. - Open collector outputs provide flexibility in circuit design. - Low power consumption makes it suitable for portable devices.

Disadvantages: - Limited output current capability may require additional buffering for certain applications. - Input offset voltage may introduce errors in precision applications.

Working Principles

The LM339DG4 operates by comparing the voltages applied to its input pins. It internally generates a reference voltage against which the input voltages are compared. The outputs of the comparator change state depending on the comparison results, providing a logical indication of the voltage relationships.

Detailed Application Field Plans

The LM339DG4 finds extensive use in various applications, including but not limited to: - Voltage level detection - Signal conditioning - Motor control - Battery management systems - Overvoltage/undervoltage protection circuits - Window comparators - Oscillators

Detailed and Complete Alternative Models

Some alternative models that can be considered as alternatives to LM339DG4 include: - LM393: Dual voltage comparator - LM311: Single voltage comparator with differential inputs - LM324: Quad operational amplifier with similar functionality

These alternative models offer different features and specifications, allowing designers to choose the most suitable option for their specific application requirements.

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