LM339ADRE4

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Comparator
• Characteristics: Low power consumption, wide supply voltage range, high input impedance, open-drain output, temperature stability
• Package: SOIC-14
• Essence: The LM339ADRE4 is a quad voltage comparator designed for use in a wide range of applications that require precision analog signal comparisons.
• Packaging/Quantity: The LM339ADRE4 is available in tape and reel packaging with 2500 units per reel.

Specifications

• Supply Voltage Range: 2V to 36V
• Input Offset Voltage: ±1mV (maximum)
• Input Bias Current: ±25nA (maximum)
• Response Time: 1.3μs (typical)
• Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LM339ADRE4 has a total of 14 pins arranged as follows:

___________ VCC | 1 14 | GND IN1 | 2 13 | OUT1 IN2 | 3 12 | OUT2 IN3 | 4 11 | OUT3 IN4 | 5 10 | OUT4 GND | 6 9 | NC OUT | 7 8 | NC ‾‾‾‾‾‾‾‾‾‾‾‾

Functional Features

• Quad voltage comparator with open-drain outputs
• Wide supply voltage range allows operation from various power sources
• High input impedance minimizes loading effects on the input signals
• Low power consumption makes it suitable for battery-powered applications
• Temperature stability ensures reliable performance across different environmental conditions

Advantages and Disadvantages

Advantages: - Versatile voltage comparator suitable for a wide range of applications - Low power consumption extends battery life in portable devices - Open-drain outputs provide flexibility in interfacing with other circuitry - Wide supply voltage range allows operation in diverse systems

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 LM339ADRE4 compares the voltages applied to its input pins and produces corresponding digital outputs based on the comparison results. It utilizes an internal reference voltage to establish the threshold for comparison. When the voltage at the non-inverting input exceeds the voltage at the inverting input, the output is driven low. Conversely, when the inverting input voltage is higher, the output remains high.

Detailed Application Field Plans

The LM339ADRE4 finds application in various fields, including:

1. Battery Management Systems: Voltage monitoring and protection in battery packs.
2. Motor Control: Overcurrent detection and fault protection in motor control circuits.
3. Power Supplies: Overvoltage and undervoltage protection in power supply units.
4. Signal Conditioning: Precision signal level detection and comparison in analog signal processing circuits.
5. Automotive Electronics: Fault detection and safety systems in automotive applications.

Alternative Models

Other alternative models that can be considered as replacements for the LM339ADRE4 include:

1. LM393: Dual voltage comparator with similar characteristics but fewer channels.
2. LM311: Single voltage comparator with higher speed and wider temperature range.
3. LM324: Quad operational amplifier with built-in voltage comparators.

These alternative models offer different trade-offs in terms of performance, features, and package options, allowing designers to choose the most suitable option for their specific requirements.

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