LM339A-TR

The LM339A-TR is a quad comparator integrated circuit (IC) that features four independent, high-speed voltage comparators. It operates with a wide supply voltage range of 2V to 36V, making it versatile for various applications. The LM339A-TR offers a low input bias current, high gain, and fast response time, with a propagation delay typically around 1.3 µs.
Each comparator has an open-collector output, allowing for wired-AND configurations, ideal for implementing multi-channel logic or signal processing. The device is commonly used in applications such as voltage level detection, window comparators, and comparator circuits in analog systems.
The LM339A-TR is available in various packages, including DIP and surface mount, and is suitable for low-power applications due to its low supply current. Overall, it is a reliable choice for engineers needing efficient and effective voltage comparison in their designs.

The LM339A-TR is a quad comparator with the following key features:
1. Quad Comparator: Contains four independent, high-speed voltage comparators.
2. Wide Supply Voltage Range: Operates within a voltage range of 2V to 36V.
3. Low Power Consumption: Consumes low quiescent current, which is suitable for battery-operated devices.
4. Fast Response Time: Offers a typical response time of 1.3 µs, making it suitable for high-speed applications.
5. Open-Collector Output: The output stage is open-collector, allowing for wired-AND configurations and easy interfacing with various logic levels.
6. Input Voltage Range: Can handle input voltages that exceed the supply voltage, which enhances versatility.
7. Temperature Range: Operational temperature range from -40°C to +125°C, suitable for industrial and automotive applications.
8. Low Offset Voltage: Typically low input offset voltage for improved accuracy in applications.
These features make the LM339A-TR ideal for applications such as voltage level detection, signal conditioning, and more.

The LM339A-TR is typically packaged in a 14-pin dual in-line package (DIP) or a surface-mount package, such as a 14-pin SOIC (Small Outline Integrated Circuit). These packages are designed for easy integration into electronic circuits.

The LM339A-TR is a quad comparator that features a total of 14 pins. It consists of four independent, high-speed voltage comparators, each capable of driving a TTL output.
Pin Functions:
1. Pin 1 (Output 1): Output of comparator 1.
2. Pin 2 (Inverting Input 1): Inverting input of comparator 1.
3. Pin 3 (Non-inverting Input 1): Non-inverting input of comparator 1.
4. Pin 4 (V- or Ground): Negative supply voltage or ground.
5. Pin 5 (Inverting Input 2): Inverting input of comparator 2.
6. Pin 6 (Non-inverting Input 2): Non-inverting input of comparator 2.
7. Pin 7 (Output 2): Output of comparator 2.
8. Pin 8 (Output 3): Output of comparator 3.
9. Pin 9 (Inverting Input 3): Inverting input of comparator 3.
10. Pin 10 (Non-inverting Input 3): Non-inverting input of comparator 3.
11. Pin 11 (Output 4): Output of comparator 4.
12. Pin 12 (Inverting Input 4): Inverting input of comparator 4.
13. Pin 13 (Non-inverting Input 4): Non-inverting input of comparator 4.
14. Pin 14 (V+ or Positive Supply): Positive supply voltage.
This device operates over a wide voltage range and is used for a variety of applications including signal conditioning and comparator functions.

The LM339A-TR is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company known for designing and producing a wide range of electronic components and integrated circuits, including analog, digital signal processing, and embedded processing products. Founded in 1930, TI primarily serves industries such as automotive, industrial, communications, and consumer electronics. The company is recognized for its innovation in analog and embedded processing technologies, contributing to advancements in various applications like automation, power management, and connectivity.

The LM339A-TR is a quad comparator widely used in various applications, including voltage level detection, analog signal processing, and threshold sensing. It is commonly found in battery management systems, over-voltage and under-voltage protection circuits, signal conditioning, and relay control systems. Additionally, it is utilized in oscillator circuits, temperature monitoring, and automotive applications for sensor interfacing. Its versatility and low power consumption make it suitable for both industrial and consumer electronics.

Equivalent products to the LM339A-TR include the TLV339, LM393, and LM2901. These comparators share similar specifications, such as dual or quad configurations and low voltage operation. When substituting, ensure to check parameters like voltage range, speed, and power consumption to confirm compatibility with your application.