Specifications
| Attribute | Value |
| Package | Tube,Tube |
| ProductStatus | Obsolete |
| 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) | 16mA @ 5V |
| Current-Quiescent(Max) | 2.5mA |
| PropagationDelay(Max) | 700ns |
| OperatingTemperature | 0°C ~ 70°C |
| Package/Case | 8-DIP (0.300, 7.62mm) |
| MountingType | Through Hole |
Overview
Description
The LM393N is a dual voltage comparator integrated circuit. It contains two independent precision voltage comparators designed to operate from a single power supply or dual power supplies. The IC is capable of comparing two voltages and determining which is larger, producing a digital output signal based on the comparison. It operates over a wide range of supply voltages, from 2V to 36V, which makes it versatile for various applications.
The LM393N features low input bias current, low input offset voltage, and low power consumption, making it suitable for battery-powered devices. It can be used in applications like simple analog-to-digital converters, zero crossing detectors, or as a part of oscillator circuits. The open-collector output allows for wired-AND configurations, useful in logic-level shifting or level detection tasks.
Its robust performance, low cost, and reliability make the LM393N a popular choice in consumer electronics, automotive systems, and industrial equipment. It is available in various package types, including DIP and SOIC, for design flexibility.
The LM393N features low input bias current, low input offset voltage, and low power consumption, making it suitable for battery-powered devices. It can be used in applications like simple analog-to-digital converters, zero crossing detectors, or as a part of oscillator circuits. The open-collector output allows for wired-AND configurations, useful in logic-level shifting or level detection tasks.
Its robust performance, low cost, and reliability make the LM393N a popular choice in consumer electronics, automotive systems, and industrial equipment. It is available in various package types, including DIP and SOIC, for design flexibility.
Equivalent
The LM393N is a dual voltage comparator. Equivalent products include the LM393 from various manufacturers like Texas Instruments and ON Semiconductor, the LM393Pand the LM393D Other equivalents are the LM2903, LM293, and the TLV1702, which offer similar functionality. Ensure to check the datasheet for pin configuration and electrical characteristics to confirm compatibility.
Features
The LM393N is a dual voltage comparator integrated circuit. Its key features include:
1. Dual Comparator: Contains two independent voltage comparators in a single package.
2. Wide Supply Voltage Range: Operates from 2V to 36V for a single power supply, or ±1V to ±18V for dual supplies.
3. Low Input Offset Voltage: Typically around 2mV, which ensures precise voltage comparison.
4. Low Input Bias Current: Around 25nA, minimizing input loading effects.
5. Open Collector Output: Allows for wired-OR connections and interfacing with logic circuits.
6. Wide Common-Mode Range: Includes ground, making it suitable for single-supply applications.
7. Low Power Consumption: Ideal for battery-operated devices.
8. Temperature Range: Operates between 0°C to 70°C (commercial range) or -40°C to 85°C (industrial range for LM393).
9. Package Options: Available in DIP, SOIC, and other surface-mount packages.
These features make the LM393N suitable for various applications, including level shifting, voltage monitoring, and zero-crossing detectors.
1. Dual Comparator: Contains two independent voltage comparators in a single package.
2. Wide Supply Voltage Range: Operates from 2V to 36V for a single power supply, or ±1V to ±18V for dual supplies.
3. Low Input Offset Voltage: Typically around 2mV, which ensures precise voltage comparison.
4. Low Input Bias Current: Around 25nA, minimizing input loading effects.
5. Open Collector Output: Allows for wired-OR connections and interfacing with logic circuits.
6. Wide Common-Mode Range: Includes ground, making it suitable for single-supply applications.
7. Low Power Consumption: Ideal for battery-operated devices.
8. Temperature Range: Operates between 0°C to 70°C (commercial range) or -40°C to 85°C (industrial range for LM393).
9. Package Options: Available in DIP, SOIC, and other surface-mount packages.
These features make the LM393N suitable for various applications, including level shifting, voltage monitoring, and zero-crossing detectors.
Pinout
The LM393N is an 8-pin Dual Differential Comparator IC. It compares two voltages and outputs a digital signal indicating which is larger. Here’s a brief overview of its pin functions:
1. Pin 1 (OUT1): Output of comparator 1.
2. Pin 2 (IN1-): Inverting input of comparator 1.
3. Pin 3 (IN1+): Non-inverting input of comparator 1.
4. Pin 4 (GND): Ground connection.
5. Pin 5 (IN2+): Non-inverting input of comparator 2.
6. Pin 6 (IN2-): Inverting input of comparator 2.
7. Pin 7 (OUT2): Output of comparator 2.
8. Pin 8 (VCC): Positive power supply voltage.
The LM393N operates on a wide supply voltage range and provides open-collector outputs. It's commonly used in applications such as zero-crossing detectors, voltage level shifters, and relaxation oscillators.
1. Pin 1 (OUT1): Output of comparator 1.
2. Pin 2 (IN1-): Inverting input of comparator 1.
3. Pin 3 (IN1+): Non-inverting input of comparator 1.
4. Pin 4 (GND): Ground connection.
5. Pin 5 (IN2+): Non-inverting input of comparator 2.
6. Pin 6 (IN2-): Inverting input of comparator 2.
7. Pin 7 (OUT2): Output of comparator 2.
8. Pin 8 (VCC): Positive power supply voltage.
The LM393N operates on a wide supply voltage range and provides open-collector outputs. It's commonly used in applications such as zero-crossing detectors, voltage level shifters, and relaxation oscillators.
Manufacturer
The LM393N is a widely used dual voltage comparator, and it has been manufactured by several semiconductor companies over the years. Notable manufacturers include Texas Instruments, ON Semiconductor (now onsemi), and STMicroelectronics, among others.
1. Texas Instruments (TI): TI is a major American technology company headquartered in Dallas, Texas. It designs and manufactures semiconductors and various integrated circuits, which are used in electronic design and development.
2. onsemi (formerly ON Semiconductor): onsemi is a leading supplier of semiconductor-based solutions, offering a comprehensive portfolio of energy-efficient power and signal management, logic, standard, and custom devices. The company is based in Phoenix, Arizona.
3. STMicroelectronics: STMicroelectronics is a global semiconductor company, headquartered in Geneva, Switzerland. It provides a variety of microelectronics solutions including sensors, microcontrollers, power management, and automotive products.
All these companies are known for their significant contributions to the electronics and semiconductor industry, providing components critical to a wide range of applications including automotive, industrial, consumer electronics, and more.
1. Texas Instruments (TI): TI is a major American technology company headquartered in Dallas, Texas. It designs and manufactures semiconductors and various integrated circuits, which are used in electronic design and development.
2. onsemi (formerly ON Semiconductor): onsemi is a leading supplier of semiconductor-based solutions, offering a comprehensive portfolio of energy-efficient power and signal management, logic, standard, and custom devices. The company is based in Phoenix, Arizona.
3. STMicroelectronics: STMicroelectronics is a global semiconductor company, headquartered in Geneva, Switzerland. It provides a variety of microelectronics solutions including sensors, microcontrollers, power management, and automotive products.
All these companies are known for their significant contributions to the electronics and semiconductor industry, providing components critical to a wide range of applications including automotive, industrial, consumer electronics, and more.
Application
The LM393N is a dual voltage comparator used in various applications. It’s commonly employed in analog signal processing for voltage level detection, zero-crossing detection, and waveform shaping. In power management, it aids in battery monitoring and overcurrent protection. The LM393N is also useful in sensor interfacing, such as temperature, light, and motion sensors, by converting analog signals to digital outputs. Additionally, it is utilized in oscillators and timing circuits, and in automotive electronics for various control and monitoring functions. Its low power consumption and wide supply voltage range make it versatile for multiple circuit designs.
Package
The LM393N is typically available in an 8-pin Dual In-line Package (DIP), which is commonly used for through-hole mounting on printed circuit boards. This package type is popular due to its ease of use in prototyping and educational settings.
