LM293N

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LM293N

IC COMPARATOR LP DUAL 8-DIP

  • Производитель
  • Мфр. Часть #LM293N
  • Пакет DIP-8
  • Лист данных
  • В наличии4506

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Спецификации

Package Tube
ProductStatus Obsolete
Type General Purpose
NumberofElements 2
OutputType CMOS, DTL, ECL, MOS, Open-Collector, TTL
Voltage-SupplySingle/Dual(±) 2V ~ 36V, ±1V ~ 18V
Voltage-InputOffset(Max) 5mV @ 30V
Current-InputBias(Max) 0.25µA @ 5V
Current-Output(Typ) 18mA @ 5V
Current-Quiescent(Max) 2.5mA
OperatingTemperature -40°C ~ 105°C
Package/Case 8-DIP (0.300, 7.62mm)
MountingType Through Hole

Обзор

Description

The LM293N is a voltage comparator integrated circuit (IC) commonly used in electronic circuits for comparing two input voltages. It features a dual comparator configuration, meaning it contains two independent comparators in a single package. The LM293N operates with a wide supply voltage range, typically from 4.5V to 36V, making it versatile for various applications.
One of its key features is the ability to provide a digital output signal, indicating whether the non-inverting input voltage is greater or less than the inverting input voltage. It has a low input bias current and a fast response time, making it suitable for high-speed applications. Additionally, it includes built-in hysteresis, which helps prevent false triggering due to noise.
The LM293N is widely used in applications such as voltage level detection, signal conditioning, and analog-to-digital conversion. It comes in various package types, including DIP and surface mount, making it easy to integrate into different circuit designs. Overall, the LM293N is an essential component in many electronic systems where precise voltage comparisons are required.

Features

The LM293N is a dual comparator integrated circuit widely used in various applications. Its key features include:
1. Dual Comparator: Contains two independent, high-speed comparators.
2. Wide Supply Voltage: Operates with a supply voltage range from 2V to 36V, making it versatile for different applications.
3. Low Input Offset Voltage: Typically around 2mV, ensuring accurate comparisons.
4. High Gain: Offers a high open-loop gain, typically around 100,000, facilitating precise signal processing.
5. Fast Response Time: Slew rate of approximately 0.5V/μs, allowing quick response to changes in input voltage.
6. High Output Drive Capability: Can sink or source up to 50mA, making it suitable for driving loads directly.
7. Temperature Range: Functional over a temperature range of -40°C to +125°C, ensuring reliability in various environments.
8. TTL Compatible: Outputs are compatible with TTL logic, allowing easy integration into digital systems.
Overall, the LM293N is ideal for applications in voltage level detection, waveform shaping, and signal conditioning.

Package

The LM293N is typically packaged in a dual in-line package (DIP) format, specifically a 14-pin DIP. It is also available in other package types like surface mount, but the N suffix specifically refers to the DIP version.

Pinout

The LM293N is a quad comparator integrated circuit with a total of 14 pins. Here is a brief overview of the pin configuration and their functions:
1. Pin 1 (Output 1) - Output of comparator 1.
2. Pin 2 (Inverting Input 1) - Inverting input for comparator 1.
3. Pin 3 (Non-inverting Input 1) - Non-inverting input for comparator 1.
4. Pin 4 (V- or Ground) - Negative power supply terminal.
5. Pin 5 (Inverting Input 2) - Inverting input for comparator 2.
6. Pin 6 (Non-inverting Input 2) - Non-inverting input for 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 for comparator 3.
10. Pin 10 (Non-inverting Input 3) - Non-inverting input for comparator 3.
11. Pin 11 (Output 4) - Output of comparator 4.
12. Pin 12 (Inverting Input 4) - Inverting input for comparator 4.
13. Pin 13 (Non-inverting Input 4) - Non-inverting input for comparator 4.
14. Pin 14 (V+ or Power) - Positive power supply terminal.
The LM293N is commonly used in various applications for signal comparison, level detection, and switching.

Manufacturer

The LM293N is manufactured by Texas Instruments (TI), a major American technology company. Texas Instruments is primarily known for designing and producing semiconductors and various electronic components, including integrated circuits (ICs), calculators, and embedded processors. Founded in 1930, the company operates in multiple sectors, such as automotive, industrial, communications, and consumer electronics. TI is recognized for its innovations in analog and digital technology, contributing significantly to advancements in electronic applications. The LM293N itself is a dual comparator IC, often used in signal conditioning, voltage level detection, and other applications requiring precise voltage comparisons.

Application

The LM293N is a dual comparator integrated circuit used in various applications, including voltage level detection, signal conditioning, and waveform shaping. It's often utilized in battery level monitoring, temperature sensing circuits, oscillators, and window comparators. Additionally, the LM293N can be employed in automotive systems, such as fuel level indicators and alarm systems, as well as in industrial automation for process control and feedback systems.

Equivalent

Equivalent products to the LM293N chip include the LM2903, LM393, and LM339. These are all dual comparator ICs, with variations in supply voltage, output type, and other specifications. For specific applications, check data sheets for comparable parameters like input voltage range and response time.

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