LM139DT

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LM139DT

IC COMPARATOR 4 GEN PUR 14SO

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  • Ông. Phần #LM139DT
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  • Bảng dữ liệu LM139DT DataSheet
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Thông số kỹ thuật

Part Status Active
Type Standard (General Purpose)
Number of Elements 4
Voltage - Supply, Single/Dual (±) 2V ~ 32V, ±1V ~ 16V
Voltage - Input Offset (Max) 5mV @ 30V
Current - Input Bias (Max) 0.25µA @ 5V
Current - Output (Typ) 16mA @ 5V
Current - Quiescent (Max) 2mA
Operating Temperature -55°C ~ 125°C
Package / Case 14-SOIC (0.154", 3.90mm Width)
Mounting Type Surface Mount
Supplier Device Package 14-SO
Base Product Number LM139

Tổng quan

Description

The LM139DT is a quad comparator integrated circuit (IC) designed for various applications in electronic circuits. It features four independent, high-gain voltage comparators with open-collector outputs, allowing for easy interfacing with different logic levels. The device operates over a wide voltage range from 2 to 36 volts and is capable of handling input voltages that exceed its supply voltage, making it robust for various applications.
Key specifications include a typical response time of 1.3 microseconds, low input offset voltage, and a temperature range from -40°C to +125°C. The open-collector output allows for wired-AND configurations, which can be beneficial in logic applications. The LM139DT is commonly used in analog signal processing, threshold detection, and level shifting applications. Its versatility, reliability, and ease of use make it a popular choice in both hobbyist and professional electronics projects.

Features

The LM139DT is a quad comparator integrated circuit. Key features include:
1. Quad Configuration: Contains four independent comparators, allowing multiple signal comparisons in a single package.
2. Low Power Consumption: Operates with a supply voltage range of 2V to 36V, making it suitable for battery-powered applications.
3. Fast Response Time: Offers a typical propagation delay of 200 ns, enabling quick signal processing.
4. Wide Input Voltage Range: Accepts input voltages from 0V to Vcc, accommodating various signal levels.
5. Open-Collector Output: Features TTL-compatible outputs, allowing for easy interfacing with other digital circuits.
6. Hysteresis Capability: Can be configured for positive feedback, providing stability against noise.
7. Temperature Range: Operates within a temperature range of -40°C to +125°C, making it suitable for industrial applications.
These features make the LM139DT versatile for various applications, including signal conditioning, level detection, and voltage comparison.

Package

The LM139DT is packaged in a dual in-line package (DIP) format, specifically a 14-lead plastic DIP (DIP-14). This type of package allows for easy mounting on a circuit board and is commonly used for integrated circuits.

Pinout

The LM139DT is a quad comparator integrated circuit, featuring 14 pins. Its pin functions are as follows:
1. Pin 1 (OUT A): Output for comparator A.
2. Pin 2 (IN- A): Inverting input for comparator A.
3. Pin 3 (IN+ A): Non-inverting input for comparator A.
4. Pin 4 (V-): Negative power supply voltage.
5. Pin 5 (GND): Ground.
6. Pin 6 (IN+ B): Non-inverting input for comparator B.
7. Pin 7 (IN- B): Inverting input for comparator B.
8. Pin 8 (OUT B): Output for comparator B.
9. Pin 9 (OUT C): Output for comparator C.
10. Pin 10 (IN- C): Inverting input for comparator C.
11. Pin 11 (IN+ C): Non-inverting input for comparator C.
12. Pin 12 (OUT D): Output for comparator D.
13. Pin 13 (IN- D): Inverting input for comparator D.
14. Pin 14 (IN+ D): Non-inverting input for comparator D.
The LM139DT operates over a wide voltage range and is commonly used in various comparator applications.

Manufacturer

The LM139DT is manufactured by Texas Instruments (TI), a global semiconductor company headquartered in Dallas, Texas. Founded in 1930, Texas Instruments specializes in designing and manufacturing a wide range of analog and digital semiconductors. The company is well-known for its innovative products in areas such as embedded processing, analog electronics, and digital signal processing. TI services various industries, including automotive, industrial, communications, and consumer electronics, making it a leading player in the semiconductor market.

Application

The LM139DT is a quad comparator widely used in various applications, including voltage level detection, signal conditioning, and analog-to-digital conversion. It's suitable for temperature monitoring, over-voltage protection, and switching applications. The LM139DT can be employed in automotive systems, industrial automation, and consumer electronics for tasks like threshold detection and signal comparison. Its low power consumption and wide supply voltage range make it ideal for battery-powered devices as well.

Equivalent

The LM139DT is a quad comparator. Its equivalents include the LM2901 (quad comparator with a wider input range), LM339 (quad comparator without hysteresis), and the TLV3701 (low-power quad comparator). Other alternatives may include the MAX comparator series or the LTC series, depending on specific application requirements like voltage range, speed, and power consumption. Always check datasheets for compatibility.

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