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LM293ST

Name: LM293ST
Rating: 4.7 (12 reviews)

IC COMPARATOR 2 GEN PUR 8MINISO

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Mfr。パート #LM293ST
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データシート LM293ST DataSheet
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仕様

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)	18mA @ 5V
Current - Quiescent (Max)	2.5mA
Operating Temperature	-40°C ~ 105°C
Package	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Mounting Type	Surface Mount
Supplier Device Package	8-MiniSO
Packaging	Cut Tape (CT), Tape & Reel (TR)

概要

Description

The LM293ST is a dual comparator integrated circuit (IC) designed for use in various applications, including voltage level detection, pulse width modulation, and signal conditioning. It features two independent, high-gain voltage comparators with open-collector outputs, allowing for easy interfacing with different voltage levels and facilitating wired-AND logic configurations.
Key specifications include a wide supply voltage range (typically from 2V to 36V), low input offset voltage, and the ability to operate with input signal variations. The LM293ST has a fast response time, making it suitable for dynamic applications. The open-collector output allows for flexibility in connecting to higher voltage systems or multiple devices.
The device is commonly used in automotive, industrial, and consumer electronics for tasks such as over-voltage protection, comparator-based oscillators, and analog signal processing. Its reliability and versatility make it a popular choice among engineers and designers.

Features

The LM293ST is a dual comparator integrated circuit that features:
1. Dual Comparator: Contains two independent comparators with open-collector outputs.
2. Wide Supply Voltage Range: Operates from 4V to 36V, making it versatile for various applications.
3. High Speed: Fast response time with a typical propagation delay of around 1.5 µs.
4. Low Input Offset Voltage: Provides accuracy with a maximum of 2 mV, enhancing performance in precision applications.
5. Temperature Range: Suitable for operation within -40°C to +125°C.
6. TTL Compatible Outputs: Open-collector outputs can interface directly with TTL and CMOS logic.
7. Wide Common-Mode Input Voltage: Accepts input voltages from -0.3V to V+ - 2V.
8. Low Power Consumption: Efficient design suitable for battery-operated devices.
9. Applications: Widely used in voltage level detection, pulse width modulation, and as a voltage comparator in various electronic circuits.
This makes the LM293ST a reliable choice for numerous analog signal processing applications.

Package

The LM293ST is packaged in a 14-pin dual in-line package (DIP) type.

Pinout

The LM293ST is a dual voltage comparator with a total of 8 pins. Its pin configuration is as follows:
1. Non-inverting Input (V+): Positive input for comparator A.
2. Inverting Input (V-): Negative input for comparator A.
3. Output (OUT): Output for comparator A.
4. Ground (GND): Common ground connection.
5. Non-inverting Input (V+): Positive input for comparator B.
6. Inverting Input (V-): Negative input for comparator B.
7. Output (OUT): Output for comparator B.
8. Supply Voltage (VCC): Positive supply voltage.
The LM293ST operates with a wide supply voltage range (2V to 36V) and features open-collector outputs, allowing for wired-AND logic configurations. It is commonly used in applications such as zero-crossing detectors, level shifters, and signal conditioning in various electronic circuits.

Manufacturer

The LM293ST is manufactured by Texas Instruments (TI), a leading technology company specializing in semiconductor design and manufacturing. Texas Instruments is known for its extensive range of products, including analog and digital signal processing devices, embedded processors, and various integrated circuits. Founded in 1930, the company has a strong presence in the electronics industry and serves a diverse set of markets, including automotive, industrial, communications, and consumer electronics. TI is recognized for its innovations in analog technology and commitment to quality, making it a key player in the global semiconductor landscape.

Application

The LM293ST is a dual comparator that can be used in various applications, including voltage level detection, window comparators, oscillator circuits, and zero-crossing detectors. It is suitable for interfacing with analog signals, signal conditioning, and providing feedback in control systems. Additionally, it can be employed in battery management systems, over-voltage and under-voltage protection circuits, and as a part of timing circuits in consumer electronics.

Equivalent

Equivalent products to the LM293ST include the LM393, LM2903, and LM2901. These chips are all dual comparator ICs, suitable for various applications in signal processing and voltage comparison. Always check the specific datasheets for parameters like supply voltage and output type to ensure compatibility in your design.