Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| Series | Signature |
| ProductStatus | Active |
| Type | General Purpose |
| NumberofElements | 2 |
| OutputType | CMOS, MOS, Open-Collector, TTL |
| Voltage-SupplySingle/Dual(±) | 2V ~ 36V, ±1V ~ 18V |
| Voltage-InputOffset(Max) | 7mV @ 5V |
| Current-InputBias(Max) | 0.25µA @ 5V |
| Current-Output(Typ) | 16mA @ 5V |
| Current-Quiescent(Max) | 2.5mA |
| OperatingTemperature | 0°C ~ 70°C |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
| MountingType | Surface Mount |
Tổng quan
Description
The LM393DT is a dual differential comparator integrated circuit commonly used in electronic applications requiring precision voltage comparison. It features two independent voltage comparators capable of operating from a single power supply over a wide range of voltages, which makes it versatile for various applications. The device is housed in a small surface-mount package, making it suitable for compact designs.
Key features of the LM393DT include low input offset voltage, low power consumption, and open-collector outputs, which allow for wired logic connections. The comparators can compare voltages at high speeds, making them ideal for tasks such as zero-crossing detectors, voltage level shifters, and simple analog-to-digital converters.
The LM393DT is known for its ability to operate over a wide temperature range and its robustness in noisy environments, which ensures reliable performance in industrial and consumer electronics. It is also commonly used in sensor interfacing, waveform generators, and other applications where precise voltage measurements are needed.
Key features of the LM393DT include low input offset voltage, low power consumption, and open-collector outputs, which allow for wired logic connections. The comparators can compare voltages at high speeds, making them ideal for tasks such as zero-crossing detectors, voltage level shifters, and simple analog-to-digital converters.
The LM393DT is known for its ability to operate over a wide temperature range and its robustness in noisy environments, which ensures reliable performance in industrial and consumer electronics. It is also commonly used in sensor interfacing, waveform generators, and other applications where precise voltage measurements are needed.
Equivalent
The LM393DT is a dual voltage comparator. Equivalent products include the LM393 from TI, LM393N from ON Semiconductor, and LM193 or LM2903 from various manufacturers. They share similar functionalities, such as dual comparators in a single package, and are often pin-to-pin compatible with slight variations in specifications. Always verify the datasheet for specific electrical characteristics to ensure suitability for your application.
Features
The LM393DT is a dual differential comparator integrated circuit. Key features include:
1. Dual Comparator: It has two independent voltage comparators designed to operate from a single power supply over a wide range of voltages.
2. Wide Supply Voltage Range: Operates from 2V to 36V, which makes it suitable for various applications.
3. Low Power Consumption: Features low power consumption, making it efficient for battery-operated devices.
4. Open Collector Output: Allows the outputs of several comparators to be wired together.
5. Low Input Offset Voltage: Ensures accurate and stable performance.
6. Common Mode Range: The input common-mode voltage range includes ground, even for a single-supply operation.
7. Wide Temperature Range: Typically functions well over a temperature range of -40°C to +85°C, ensuring reliability in different environments.
8. High Gain: Provides high gain for rapid response and precise operation.
These features make it suitable for various comparator applications like voltage sensing, battery monitoring, and level shifting.
1. Dual Comparator: It has two independent voltage comparators designed to operate from a single power supply over a wide range of voltages.
2. Wide Supply Voltage Range: Operates from 2V to 36V, which makes it suitable for various applications.
3. Low Power Consumption: Features low power consumption, making it efficient for battery-operated devices.
4. Open Collector Output: Allows the outputs of several comparators to be wired together.
5. Low Input Offset Voltage: Ensures accurate and stable performance.
6. Common Mode Range: The input common-mode voltage range includes ground, even for a single-supply operation.
7. Wide Temperature Range: Typically functions well over a temperature range of -40°C to +85°C, ensuring reliability in different environments.
8. High Gain: Provides high gain for rapid response and precise operation.
These features make it suitable for various comparator applications like voltage sensing, battery monitoring, and level shifting.
Pinout
The LM393DT is a dual voltage comparator IC. It has an 8-pin configuration. Here's a brief summary of its pin functions:
1. Pin 1 (Output 1): Output of comparator 1.
2. Pin 2 (Input Inverting 1): Inverting input for comparator 1.
3. Pin 3 (Input Non-Inverting 1): Non-inverting input for comparator 1.
4. Pin 4 (Ground): Ground or negative supply voltage.
5. Pin 5 (Input Non-Inverting 2): Non-inverting input for comparator 2.
6. Pin 6 (Input Inverting 2): Inverting input for comparator 2.
7. Pin 7 (Output 2): Output of comparator 2.
8. Pin 8 (Vcc): Positive supply voltage.
The LM393DT is often used in applications requiring an analog signal comparison, such as voltage level detection, zero-crossing detectors, and many other analog signal processing tasks.
1. Pin 1 (Output 1): Output of comparator 1.
2. Pin 2 (Input Inverting 1): Inverting input for comparator 1.
3. Pin 3 (Input Non-Inverting 1): Non-inverting input for comparator 1.
4. Pin 4 (Ground): Ground or negative supply voltage.
5. Pin 5 (Input Non-Inverting 2): Non-inverting input for comparator 2.
6. Pin 6 (Input Inverting 2): Inverting input for comparator 2.
7. Pin 7 (Output 2): Output of comparator 2.
8. Pin 8 (Vcc): Positive supply voltage.
The LM393DT is often used in applications requiring an analog signal comparison, such as voltage level detection, zero-crossing detectors, and many other analog signal processing tasks.
Manufacturer
The LM393DT is manufactured by STMicroelectronics. STMicroelectronics is a global semiconductor company that designs, develops, manufactures, and markets a wide range of semiconductor products. These products are used in various applications including automotive, industrial, personal electronics, computer peripherals, and telecommunications. STMicroelectronics is known for its integrated circuits and discrete devices, and it operates in multiple segments such as analog, digital, and mixed-signal technologies. The company is headquartered in Geneva, Switzerland, and has a broad international presence with manufacturing facilities, research and development centers, and sales offices around the world.
Application
The LM393DT is a dual voltage comparator commonly used in various electronic applications. Its typical applications include:
1. Voltage Comparators: Used in systems where two voltage levels need to be compared.
2. Zero-Crossing Detectors: Essential for signal processing in AC systems.
3. Oscillators: Utilized in timing circuits to create precise waveforms.
4. Level Shifters: Helps in interfacing between different voltage levels in digital circuits.
5. Sensor Interface: Converts analog sensor outputs into digital signals.
6. Overvoltage Protection: Monitors and compares voltage levels to trigger protective measures.
7. Battery Management Systems: Ensures the safe operation of battery-powered devices.
These applications benefit from its low power consumption and ability to operate over a wide voltage range.
1. Voltage Comparators: Used in systems where two voltage levels need to be compared.
2. Zero-Crossing Detectors: Essential for signal processing in AC systems.
3. Oscillators: Utilized in timing circuits to create precise waveforms.
4. Level Shifters: Helps in interfacing between different voltage levels in digital circuits.
5. Sensor Interface: Converts analog sensor outputs into digital signals.
6. Overvoltage Protection: Monitors and compares voltage levels to trigger protective measures.
7. Battery Management Systems: Ensures the safe operation of battery-powered devices.
These applications benefit from its low power consumption and ability to operate over a wide voltage range.
Package
The LM393DT is a dual voltage comparator IC available in a surface mount package. Specifically, it is housed in a SOIC-8 (Small Outline Integrated Circuit) package type, which is ideal for compact designs and surface mounting on PCBs.
