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LM239ADT

Name: LM239ADT
Rating: 4.7 (12 reviews)

IC COMPARATOR LP QUAD 14-SOIC

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製造商。部分 #LM239ADT
包 14-SOIC
資料表 LM239ADT DataSheet
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規格

Package	Tape & Reel (TR),Cut Tape (CT)
ProductStatus	Active
Type	General Purpose
NumberofElements	4
OutputType	CMOS, DTL, ECL, MOS, Open-Collector, TTL
Voltage-SupplySingle/Dual(±)	2V ~ 32V, ±1V ~ 16V
Voltage-InputOffset(Max)	2mV @ 30V
Current-InputBias(Max)	0.1µA @ 5V
Current-Output(Typ)	16mA @ 5V
Current-Quiescent(Max)	2mA
OperatingTemperature	-40°C ~ 105°C
Package/Case	14-SOIC (0.154, 3.90mm Width)
MountingType	Surface Mount

概述

Description

The LM239ADT is a quad comparator integrated circuit (IC) designed for high-speed performance and low power consumption. It features four independent voltage comparators, each capable of handling input voltages ranging from 0V to 36V. The device operates with a wide supply voltage range, typically between 3V and 30V, making it versatile for various applications.
Key features include a fast response time (typically 300 ns at a 5V supply) and low input offset voltage, ensuring accurate comparisons. The LM239ADT is ideal for use in analog-to-digital conversion, voltage level detection, and as a part of feedback loops in control systems.
It is available in various packages, including surface mount options, facilitating easy integration into different circuit designs. The LM239ADT is commonly used in automotive, industrial, and consumer electronics applications due to its reliability and performance characteristics.

Features

The LM239ADT is a quad comparator from Texas Instruments featuring four independent voltage comparators. Key features include:
1. Supply Voltage Range: Operates with a wide supply voltage range from 2V to 36V, accommodating various applications.
2. Low Input Offset Voltage: Offers a low input offset voltage (typically 2 mV), ensuring high accuracy in signal comparison.
3. High Speed: The device has a fast response time, with a typical propagation delay of 300 ns, making it suitable for high-speed applications.
4. Open-Collector Output: Allows for wired-AND logic configurations and interfacing with various voltage levels.
5. Common-Mode Input Range: Extends from the negative supply voltage to 2V below the positive supply, enhancing versatility in usage.
6. Temperature Range: Rated for operation from -40°C to 125°C, suitable for industrial and automotive applications.
Overall, the LM239ADT is ideal for applications requiring signal detection, such as window comparators and voltage monitoring.

Package

The LM239ADT is packaged in an 8-pin SOIC (Small Outline Integrated Circuit) format. This package type is designed for surface mounting and is commonly used in various electronic applications for its compact size and efficient thermal performance.

Pinout

The LM239ADT is a quad comparator integrated circuit with a total of 14 pins. Here’s a brief overview of its pin configuration and function:
1. Pin 1: Output 1
2. Pin 2: Inverting Input 1 (−)
3. Pin 3: Non-inverting Input 1 (+)
4. Pin 4: V− (Negative Supply Voltage)
5. Pin 5: Non-inverting Input 2 (+)
6. Pin 6: Inverting Input 2 (−)
7. Pin 7: Output 2
8. Pin 8: Output 3
9. Pin 9: Inverting Input 3 (−)
10. Pin 10: Non-inverting Input 3 (+)
11. Pin 11: Non-inverting Input 4 (+)
12. Pin 12: Inverting Input 4 (−)
13. Pin 13: Output 4
14. Pin 14: V+ (Positive Supply Voltage)
The LM239 is designed for high-speed comparator applications, providing fast response times and low power consumption. It operates with a dual supply voltage and is capable of interfacing with both analog and digital signals.

Manufacturer

The LM239ADT is manufactured by Texas Instruments (TI), a leading global semiconductor company. Texas Instruments designs and produces a variety of analog and digital semiconductor devices, including integrated circuits (ICs), microcontrollers, and processors. Founded in 1930, TI is known for its innovative products and solutions in areas such as automotive, industrial, communications, and consumer electronics. The company emphasizes research and development, focusing on high-performance technologies that enable advancements in various applications, from simple consumer gadgets to complex industrial systems. TI is recognized for its commitment to quality and reliability in the semiconductor industry.

Application

The LM239ADT is a quad comparator used in various applications, including voltage level detection, zero-crossing detectors, window comparators, and signal conditioning. It is commonly utilized in automotive systems, industrial automation, and consumer electronics for tasks like over-voltage protection, temperature monitoring, and analog-to-digital conversion support. Its low offset voltage and high-speed performance make it suitable for precise measurement and control systems.

Equivalent

The LM239ADT is a quad comparator. Equivalent products include:
1. LM339 (Quad Comparator, less precision)
2. TLC371 (Quad Comparator, low power)
3. LM393 (Dual Comparator, similar functionality but dual)
4. MCP6004 (Quad Op-Amp, can be used in comparator configurations)
Always check datasheets for specific parameters and pin compatibility when substituting components.