LM293P

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LM293P

IC COMPARATOR 2 DIFF 8DIP

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Spécifications

Part Status Active
Base Product Number LM293
Type Standard (General Purpose)
Number of Elements 2
Output Type Open-Collector, Open-Drain, Rail-to-Rail
Voltage - Supply, Single/Dual (±) 2V ~ 36V, ±1V ~ 18V
Voltage - Input Offset (Max) 5mV @ 30V
Current - Input Bias (Max) 0.25µA @ 5V
Current - Output (Typ) 20mA
Current - Quiescent (Max) 2.5mA
Operating Temperature -25°C ~ 85°C
Package 8-DIP (0.300", 7.62mm)
Mounting Type Through Hole
Supplier Device Package 8-PDIP
Packaging Bulk, Tube

Vue d'ensemble

Description

The LM293P is a dual voltage comparator designed for use in various electronic applications, featuring a wide supply voltage range from 2 to 36 volts. It is part of the LM293 family and is particularly known for its low input offset voltage, which enhances accuracy in signal comparison. The device has two independent comparators, making it suitable for tasks like level detection, signal conditioning, and pulse width modulation.
Key specifications include high-speed operation, a typical response time of around 1 microsecond, and the ability to handle input voltages that can range from the negative supply to nearly the positive supply. The LM293P can drive TTL outputs directly, making it compatible with digital circuits. Its package options include an 8-pin DIP, facilitating easy integration into breadboards and PCB designs. Overall, the LM293P is a versatile and cost-effective solution for applications requiring reliable voltage comparison.

Features

The LM293P is a dual comparator integrated circuit designed for a variety of applications. Key features include:
1. Dual Comparator: Contains two independent comparators for versatile use in signal comparison tasks.
2. Wide Supply Voltage Range: Operates from a single or dual power supply ranging from 4V to 36V, accommodating different circuit configurations.
3. Low Input Bias Current: Offers high input impedance with low input bias current, making it suitable for interfacing with high-impedance sources.
4. Output Compatibility: Compatible with both TTL and CMOS logic levels, facilitating easy integration into digital circuits.
5. Fast Response Time: Features a response time of approximately 1 µs, allowing for quick signal processing.
6. Temperature Range: Rated to operate within a temperature range of -40°C to +125°C, ensuring reliability in various environments.
7. Hysteresis Option: Can be configured with positive feedback for hysteresis, improving noise immunity in applications.
These features make the LM293P ideal for applications such as voltage level detection, zero-crossing detectors, and waveform shaping.

Package

The LM293P is typically packaged in a 14-pin plastic dual in-line package (DIP).

Pinout

The LM293P is a quad voltage comparator, which means it contains four independent comparators in a single package. It comes in a 14-pin Dual In-Line Package (DIP).
Pin Count and 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 power supply
5. Pin 5 (Non-Inverting Input 2) - Non-inverting input of Comparator 2
6. Pin 6 (Inverting Input 2) - 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 (Non-Inverting Input 4) - Non-inverting input of Comparator 4
12. Pin 12 (Inverting Input 4) - Inverting input of Comparator 4
13. Pin 13 (Output 4) - Output of Comparator 4
14. Pin 14 (V+ or Positive Supply) - Positive power supply
The LM293P is widely used in various applications such as signal processing and analog-to-digital conversion.

Manufacturer

The LM293P is manufactured by Texas Instruments (TI), a leading American technology company. Texas Instruments is known for designing and manufacturing semiconductors and various analog and digital technologies. The company specializes in integrated circuits (ICs) and is particularly recognized for its innovations in signal processing, embedded processing, and analog solutions. Founded in 1930, TI serves a diverse range of industries, including telecommunications, automotive, industrial, and consumer electronics. The LM293P itself is a voltage comparator, often used in various electronic applications for signal comparison and processing tasks.

Application

The LM293P is a dual comparator used in various applications, including:
1. Voltage level detection
2. Window comparators
3. Signal conditioning
4. Oscillator circuits
5. Pulse-width modulation (PWM) control
6. Zero-crossing detectors
7. Temperature sensing circuits
Its versatility makes it suitable for industrial, automotive, and consumer electronics applications.

Equivalent

Equivalent products to the LM293P chip include the LM2903, LM393, and the TLV3701. These are all dual comparator ICs with similar functionality, though specifications like supply voltage and output type may vary. Always check datasheets for specific requirements and compatibility.

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