LM293ADT

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LM293ADT

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IC COMPARATOR 2 GEN PUR 8SOIC

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規格

屬性 價值
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) 2mV @ 30V
Current - Input Bias (Max) 0.1µA @ 5V
Current - Output (Typ) 18mA @ 5V
Current - Quiescent (Max) 2.5mA
Operating Temperature -40°C ~ 105°C
Package / Case 8-SOIC (0.154", 3.90mm Width)
Mounting Type Surface Mount
Supplier Device Package 8-SOIC
Packaging Cut Tape (CT), Tape & Reel (TR)

概述

Description

The LM293ADT is a dual comparator integrated circuit designed for various voltage comparison tasks. It operates over a wide voltage range, making it suitable for both low-voltage and higher-voltage applications. The LM293ADT is part of the LM293 series, which is known for its reliability and versatility in industrial and consumer electronic applications.
This IC offers low power consumption and features a typical response time of milliseconds, which is sufficient for many general-purpose applications. It operates with a single or dual power supply, providing flexibility in circuit design. The device's common-mode input voltage range includes ground, even when operated with a single power supply.
The LM293ADT is housed in a compact package, facilitating its integration into space-constrained designs. Its dual comparator configuration allows it to perform two independent comparison operations, enhancing functionality while minimizing component count. Typical applications include threshold detectors, zero-crossing detectors, and signal conditioning. The device's robustness and accuracy make it a popular choice for designers needing reliable analog signal processing solutions.

Equivalent

The LM293ADT is a dual voltage comparator. Equivalent products include the LM393 from Texas Instruments, the LM2903 from ON Semiconductor, and the MC3303 from STMicroelectronics. These components serve similar functions and have comparable electrical characteristics, making them suitable alternatives in most applications. Always check the datasheets for compatibility in terms of pin configuration and specific performance requirements for your application.

Features

The LM293ADT is a dual voltage comparator integrated circuit designed for various applications. Key features include:
1. Dual Comparator: It contains two independent voltage comparators.
2. Wide Supply Voltage Range: Operates from 2V to 36V for single supply or ±1V to ±18V for dual supplies.
3. Low Supply Current: Typically around 0.4 mA per comparator, ensuring energy efficiency.
4. Low Input Offset Voltage: Typically around 2 mV, which enhances accuracy.
5. Wide Input Common-Mode Voltage Range: Allows operation with inputs up to the supply voltage.
6. Low Output Saturation Voltage: Ensures efficient switching by minimizing power loss.
7. Wide Temperature Range: Suitable for automotive and industrial applications, typically from -40°C to +125°C.
8. Compatibility: Pin-compatible with the LM339 family, making it easy to use in existing designs.
9. Package Options: Available in various packages like SO-8, ensuring flexibility in design layout.
These features make the LM293ADT suitable for applications requiring precise voltage comparison, such as zero-crossing detectors, voltage level shifters, and oscillator circuits.

Pinout

The LM293ADT is a dual voltage comparator IC, meaning it contains two independent voltage comparators within the same package. It typically comes in an 8-pin package. Here's a brief overview of its pin functions:
1. Pin 1 (Output 1): Output of the first comparator.
2. Pin 2 (Inverting Input 1, -IN1): Inverting input of the first comparator.
3. Pin 3 (Non-Inverting Input 1, +IN1): Non-inverting input of the first comparator.
4. Pin 4 (Vcc-): Ground or negative supply voltage.
5. Pin 5 (Non-Inverting Input 2, +IN2): Non-inverting input of the second comparator.
6. Pin 6 (Inverting Input 2, -IN2): Inverting input of the second comparator.
7. Pin 7 (Output 2): Output of the second comparator.
8. Pin 8 (Vcc+): Positive supply voltage.
The LM293ADT operates over a wide range of supply voltages and is used for comparing two voltage levels, providing a digital output indicating which voltage is higher.

Manufacturer

The LM293ADT is manufactured by STMicroelectronics, a multinational electronics and semiconductor manufacturer. STMicroelectronics is known for designing and producing a wide range of semiconductor products and integrated circuits. The company caters to markets such as automotive, industrial, personal electronics, and communications equipment. STMicroelectronics is headquartered in Geneva, Switzerland, and is recognized for its innovation and expertise in semiconductor technologies.

Application

The LM293ADT is a dual comparator integrated circuit commonly used in various applications requiring voltage comparison. It is ideal for:
1. Voltage Level Detection: Monitoring voltage levels in power supplies and battery management systems.
2. Signal Processing: Comparing analog signals in data acquisition systems.
3. Oscillator Circuits: Generating square waves in waveform generators.
4. Zero-Crossing Detectors: Identifying zero points in AC signals for phase-locked loops.
5. Window Comparators: Determining if a signal falls within a specific range.
6. Over-Current Protection: Part of protection circuits in power electronics.
7. Temperature Control: Used in thermostatic control circuits.
Its versatility and reliability make it suitable for use in consumer electronics, automotive systems, and industrial automation.

Package

The LM293ADT is typically available in a surface-mount package, specifically the SOIC-8 (Small Outline Integrated Circuit with 8 pins) package. This package type is commonly used for dual operational amplifiers like the LM293A, providing a compact design suitable for various electronic applications.