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LM293DT
IC COMPARATOR LP DUAL 8-SOIC
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規格
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| 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-SOIC (0.154, 3.90mm Width) |
| MountingType | Surface Mount |
概述
Description
The LM293DT is a dual comparator integrated circuit (IC) widely used in various electronic applications for comparing two input voltages and providing a digital output. It features two independent comparators that can operate on a single supply voltage, typically ranging from 3 to 36 volts. The LM293DT is designed for low-power consumption and can drive TTL (Transistor-Transistor Logic) outputs.
Key features include a high input impedance, low output saturation voltage, and the ability to operate in a wide temperature range (-40°C to 125°C). Its typical applications include voltage level detection, zero-crossing detection, and signal conditioning in diverse circuits. The LM293DT is packaged in a robust DIP-8 or SOIC-8 format, making it easy to integrate into both prototyping and practical designs. Its versatility and reliability make it a popular choice in both consumer electronics and industrial applications.
Key features include a high input impedance, low output saturation voltage, and the ability to operate in a wide temperature range (-40°C to 125°C). Its typical applications include voltage level detection, zero-crossing detection, and signal conditioning in diverse circuits. The LM293DT is packaged in a robust DIP-8 or SOIC-8 format, making it easy to integrate into both prototyping and practical designs. Its versatility and reliability make it a popular choice in both consumer electronics and industrial applications.
Features
The LM293DT is a dual comparator integrated circuit (IC) featuring the following key specifications:
1. Dual Comparator: Contains two independent, high-gain comparators with open-collector outputs.
2. Wide Supply Voltage Range: Operates with a supply voltage from 2V to 36V, allowing flexibility in various applications.
3. Low Input Offset Voltage: Typically has a low offset voltage of around 2mV, ensuring accurate voltage comparisons.
4. Fast Response Time: Offers a fast propagation delay, typically around 0.1µs, suitable for high-speed applications.
5. Temperature Range: Designed for reliability across an operating temperature range of -40°C to +125°C.
6. Output Configuration: Open-collector outputs provide the ability to interface with different voltage levels and enable wired-AND configurations.
7. Applications: Commonly used in voltage level detection, pulse width modulation, and as a part of oscillator circuits.
The LM293DT is widely used in automotive, industrial, and consumer electronics applications due to its robustness and versatility.
1. Dual Comparator: Contains two independent, high-gain comparators with open-collector outputs.
2. Wide Supply Voltage Range: Operates with a supply voltage from 2V to 36V, allowing flexibility in various applications.
3. Low Input Offset Voltage: Typically has a low offset voltage of around 2mV, ensuring accurate voltage comparisons.
4. Fast Response Time: Offers a fast propagation delay, typically around 0.1µs, suitable for high-speed applications.
5. Temperature Range: Designed for reliability across an operating temperature range of -40°C to +125°C.
6. Output Configuration: Open-collector outputs provide the ability to interface with different voltage levels and enable wired-AND configurations.
7. Applications: Commonly used in voltage level detection, pulse width modulation, and as a part of oscillator circuits.
The LM293DT is widely used in automotive, industrial, and consumer electronics applications due to its robustness and versatility.
Package
The LM293DT is packaged in a Dual In-Line Package (DIP) with 8 pins. It features an industry-standard configuration suitable for various applications, particularly in voltage comparator circuits.
Pinout
The LM293DT is a dual comparator integrated circuit with a total of 8 pins. Here’s a brief overview of its pin configuration and functions:
1. Pin 1 (Offset Null): Used for offset voltage adjustment.
2. Pin 2 (Inverting Input, Comparator 1): The input for the first comparator where negative voltage is applied.
3. Pin 3 (Non-inverting Input, Comparator 1): The input for the first comparator where positive voltage is applied.
4. Pin 4 (Output, Comparator 1): The output of the first comparator.
5. Pin 5 (Ground): Connects to the ground of the circuit.
6. Pin 6 (Output, Comparator 2): The output of the second comparator.
7. Pin 7 (Non-inverting Input, Comparator 2): The input for the second comparator where positive voltage is applied.
8. Pin 8 (Inverting Input, Comparator 2): The input for the second comparator where negative voltage is applied.
The LM293DT is commonly used in applications such as voltage level detection and signal conditioning.
1. Pin 1 (Offset Null): Used for offset voltage adjustment.
2. Pin 2 (Inverting Input, Comparator 1): The input for the first comparator where negative voltage is applied.
3. Pin 3 (Non-inverting Input, Comparator 1): The input for the first comparator where positive voltage is applied.
4. Pin 4 (Output, Comparator 1): The output of the first comparator.
5. Pin 5 (Ground): Connects to the ground of the circuit.
6. Pin 6 (Output, Comparator 2): The output of the second comparator.
7. Pin 7 (Non-inverting Input, Comparator 2): The input for the second comparator where positive voltage is applied.
8. Pin 8 (Inverting Input, Comparator 2): The input for the second comparator where negative voltage is applied.
The LM293DT is commonly used in applications such as voltage level detection and signal conditioning.
Manufacturer
The LM293DT is manufactured by Texas Instruments (TI), a leading global semiconductor company. Texas Instruments designs and produces a wide range of electronic components, including analog, digital signal processing, and microcontroller solutions. Founded in 1930, the company is known for its innovations in various fields such as consumer electronics, automotive, industrial, and communications. TI is recognized for its commitment to research and development, making significant contributions to the advancement of technology. The LM293DT is a voltage comparator used in various applications, demonstrating TI's expertise in providing reliable and efficient electronic solutions.
Application
The LM293DT is a dual comparator widely used in various applications, including voltage level detection, zero-crossing detectors, and signal conditioning. It is suitable for analog-to-digital conversion, sensor interfacing, and as a window comparator in battery management systems. Its low power consumption and high-speed operation make it ideal for portable devices, automotive electronics, and industrial automation systems.
Equivalent
Equivalent products to the LM293DT chip include the LM2903, LM393, and LMV393. These are dual comparator ICs, with similar functionality but may have different voltage ranges, speed, or package types. Always check datasheets for specific electrical characteristics to ensure compatibility for your application.
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