LM339EDR2G

Product Overview

Category: Integrated Circuits (ICs)

Use: LM339EDR2G is a quad voltage comparator that is commonly used in various electronic circuits. It compares two input voltages and provides an output based on the comparison result.

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

Package: SOIC-14

Essence: The LM339EDR2G is an essential component in many electronic devices and systems where voltage comparison is required.

Packaging/Quantity: The LM339EDR2G is typically sold in reels of 2500 units.

Specifications

• Supply Voltage Range: 2V to 36V
• Input Offset Voltage: ±1mV
• Input Bias Current: ±25nA
• Response Time: 1.3μs
• Output Sink Current: 16mA
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LM339EDR2G has a total of 14 pins, which are assigned as follows:

1. Output 1
2. Inverting Input 1
3. Non-Inverting Input 1
4. GND
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. VCC-
14. NC (No Connection)

Functional Features

• Quad voltage comparator with open collector outputs
• Can operate from a single or dual power supply
• Suitable for both analog and digital applications
• Provides accurate voltage comparison with minimal error

Advantages and Disadvantages

Advantages: - Low power consumption makes it suitable for battery-powered devices - Wide supply voltage range allows for versatile applications - High input impedance minimizes loading effects on the input signals - Open collector outputs provide flexibility in interfacing with other components

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

Working Principles

The LM339EDR2G compares the voltages applied to its inputs and produces a digital output based on the comparison result. It utilizes internal comparators that continuously monitor the input voltages. When the non-inverting input voltage is higher than the inverting input voltage, the corresponding output goes low (logic 0). Conversely, when the inverting input voltage is higher, the output goes high (logic 1).

Detailed Application Field Plans

The LM339EDR2G finds extensive use in various applications, including but not limited to: - Voltage level detection - Signal conditioning - Motor control - Battery chargers - Switching power supplies - Overvoltage/undervoltage protection circuits

Alternative Models

There are several alternative models available that can be used as substitutes for the LM339EDR2G. Some popular alternatives include: - LM311 - LM393 - LM324 - LM2903

These alternatives offer similar functionality and can be chosen based on specific application requirements.

In conclusion, the LM339EDR2G is a versatile quad voltage comparator widely used in electronic circuits due to its low power consumption, wide supply voltage range, and fast response time. Its open collector outputs and high input impedance make it suitable for various analog and digital applications. However, it has limitations in terms of output current capability and input offset voltage. The LM339EDR2G is commonly used in voltage level detection, signal conditioning, motor control, and other applications. Alternative models such as LM311, LM393, LM324, and LM2903 can be considered based on specific needs.