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LM293DR

Name: LM293DR
Rating: 4.7 (12 reviews)

IC COMPARATOR DIFF DUAL 8SOIC

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Mfr。パート #LM293DR
パッケージ SOIC (D)-8
データシート
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仕様

Package	Tape & Reel (TR),Cut Tape (CT)
ProductStatus	Active
Type	Differential
NumberofElements	2
OutputType	CMOS, MOS, Open-Drain, TTL
Voltage-SupplySingle/Dual(±)	2V ~ 36V, ±1V ~ 18V
Voltage-InputOffset(Max)	5mV @ 30V
Current-InputBias(Max)	0.25µA @ 5V
Current-Output(Typ)	20mA
Current-Quiescent(Max)	2.5mA
OperatingTemperature	-25°C ~ 85°C
Package/Case	8-SOIC (0.154, 3.90mm Width)
MountingType	Surface Mount

概要

Description

The LM293DR is a dual comparator integrated circuit designed for use in various electronic applications. It features two independent, high-speed comparators with a wide input voltage range, typically from 0 to 36 volts, which allows it to interface with both analog and digital signals effectively. The device is characterized by low input offset voltage and high noise immunity, making it suitable for precision voltage comparison tasks.
The LM293DR operates with a single or dual power supply and can drive loads directly, thanks to its output stage that can sink or source current. Its compact 8-pin SOIC (Small Outline Integrated Circuit) package makes it ideal for space-constrained applications. Common uses include level shifting, zero-crossing detection, and signal conditioning in various electronic circuits. Overall, the LM293DR is a versatile and reliable choice for engineers looking to perform fast and accurate voltage comparisons in their designs.

Features

The LM293DR is a dual voltage comparator designed for various applications in electronic circuits. Key features include:
1. Dual Comparator: Contains two independent comparators in one package.
2. Wide Supply Voltage Range: Operates from 2V to 36V, accommodating different power supply configurations.
3. Low Input Offset Voltage: Typically around 2mV, ensuring high accuracy in signal comparison.
4. High Gain: Offers a voltage gain of up to 100,000, enhancing sensitivity.
5. Open-Collector Output: Allows for wired-AND logic configuration and interfacing with different voltage levels.
6. Temperature Range: Rated for operation from -40°C to +125°C, suitable for industrial applications.
7. Low Power Consumption: Ideal for battery-operated devices, with a typical supply current of only 1.5mA.
8. Short-Circuit Protected: Built-in protection for enhanced reliability.

The LM293DR is commonly used in analog signal processing, level detection, and voltage monitoring applications.

Package

The LM293DR is packaged in an 8-pin SOIC (Small Outline Integrated Circuit) form factor. This surface-mount package is designed for efficient thermal performance and space-saving on PCBs.

Pinout

The LM293DR is a dual comparator integrated circuit with a total of 8 pins.
Pin Configuration:
1. Voltage Supply (V+): Power supply input.
2. Inverting Input (V-): Negative input for comparator 1.
3. Non-inverting Input (V+): Positive input for comparator 1.
4. Output (OUT): Output for comparator 1.
5. Inverting Input (V-): Negative input for comparator 2.
6. Non-inverting Input (V+): Positive input for comparator 2.
7. Output (OUT): Output for comparator 2.
8. Ground (GND): Common ground reference.
Function:
The LM293DR is designed to perform voltage comparisons. It provides two independent comparator circuits that compare the voltages at the inverting and non-inverting inputs, generating a high or low output based on the comparison results. It can operate over a wide voltage range and is often used in applications such as voltage level detection, oscillators, and pulse-width modulation.

Manufacturer

The LM293DR is manufactured by Texas Instruments (TI), a prominent American technology company. Texas Instruments specializes in designing and manufacturing semiconductors and various integrated circuits, including analog, digital signal processing (DSP), and microcontroller solutions. Founded in 1930, the company has a strong focus on innovation and provides a wide range of products for various industries, including automotive, industrial, communications, and consumer electronics. TI is well-known for its commitment to research and development, leading to a comprehensive portfolio of electronic components that cater to diverse applications.

Application

The LM293DR is a dual voltage comparator used in various applications, including:
1. Signal Conditioning: For converting analog signals into digital signals.
2. Level Shifting: To compare different voltage levels in circuits.
3. Zero-Crossing Detection: In phase-locked loops and sine wave applications.
4. Oscillators: As part of timing circuits.
5. Voltage Monitoring: For over-voltage and under-voltage detection.
6. Window Comparators: For detecting when a signal is within a specific range.
Its versatility makes it suitable for both industrial and consumer electronics.

Equivalent

The LM293DR is a dual comparator. Equivalent products include:
1. LM393 (dual comparator)
2. LM339 (quad comparator)
3. TLV3701 (single comparator)
4. MCP6002 (dual operational amplifier with comparator functionality)
Check specific datasheets for pin configurations and electrical characteristics to ensure compatibility for your application.