LM339SNG

Product Overview

Category: Integrated Circuit (IC)

Use: LM339SNG 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: DIP-14 (Dual In-line Package with 14 pins)

Essence: The LM339SNG is an essential component in many electronic devices as it enables voltage comparison and decision-making processes.

Packaging/Quantity: The LM339SNG is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

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)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM339SNG has a total of 14 pins arranged as follows:

__ __ VCC| 1 14 |GND IN1-| 2 13 |-OUT1 IN1+| 3 12 |-OUT2 IN2-| 4 11 |-OUT3 IN2+| 5 10 |-OUT4 IN3-| 6 9 |-IN4+ IN3+| 7 8 |-IN4- --------

Functional Features

• Quad voltage comparator: The LM339SNG consists of four independent voltage comparators, allowing for multiple voltage comparisons simultaneously.
• Open collector outputs: The open collector outputs provide flexibility in connecting external components and allow for easy integration into various circuit designs.
• Wide supply voltage range: The LM339SNG can operate within a wide range of supply voltages, making it suitable for different power supply configurations.
• Low power consumption: The IC consumes minimal power, making it energy-efficient and suitable for battery-powered applications.

Advantages and Disadvantages

Advantages: - Versatile: Can be used in a wide range of applications requiring voltage comparison. - High input impedance: Allows for easy interfacing with other electronic components. - Fast response time: Enables quick decision-making based on voltage comparisons. - Low power consumption: Suitable for low-power and battery-operated devices.

Disadvantages: - Limited output current: The maximum output sink current is 16mA, which may not be sufficient for certain high-current applications. - Single-ended inputs: The comparators only accept single-ended inputs, limiting their use in differential voltage comparison applications.

Working Principles

The LM339SNG compares the voltages applied to its input pins and produces corresponding digital outputs based on the comparison results. Each comparator inside the IC consists of a differential amplifier that amplifies the voltage difference between the non-inverting (+) and inverting (-) inputs. The amplified difference is then compared to an internal reference voltage. If the non-inverting input voltage is higher than the inverting input voltage, the output goes low (logic 0), and if the non-inverting input voltage is lower, the output goes high (logic 1).

Detailed Application Field Plans

The LM339SNG finds applications in various fields, including but not limited to: - Battery management systems - Voltage monitoring circuits - Motor control systems - Signal conditioning circuits - Industrial automation - Automotive electronics

Detailed and Complete Alternative Models

• LM339N: Similar to LM339SNG but in a different package (DIP-14)
• LM2901: Quad voltage comparator with similar characteristics and pin configuration
• LM311: Single voltage comparator with different pin configuration and additional features

These alternative models can be used as substitutes for the LM339SNG depending on specific requirements and availability.

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