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LM393A-SR
+BOMGENERAL PURPOSE COMPARATOR, OPEN
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Ông. Phần #LM393A-SR
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Thông số kỹ thuật
| thuộc tính | Giá trị |
| PartStatus | Active |
| Type | Differential |
| NumberofElements | 2 |
| OutputType | Open-Collector, CMOS, TTL |
| Voltage-Supply,Single/Dual(±) | 2.5V ~ 36V, ±1.25V ~ 18V |
| Voltage-InputOffset(Max) | 6mV @ 5V |
| Current-InputBias(Max) | 0.001µA @ 5V |
| Current-Output(Typ) | 10mA |
| Current-Quiescent(Max) | 300µA |
| OperatingTemperature | -40°C ~ 125°C |
| Package/Case | 8-SOIC (0.154", 3.90mm Width) |
| MountingType | Surface Mount |
| SupplierDevicePackage | 8-SOP |
Tổng quan
Description
The LM393A-SR is a dual voltage comparator integrated circuit, commonly used in various electronic projects and applications. It contains two independent voltage comparators that can operate from a single power supply or a dual supply. The primary function of this IC is to compare two input voltage levels and output a digital signal indicating which input is higher.
Key features of the LM393A-SR include low power consumption, wide supply voltage range (typically from 2V to 36V), and the ability to drive logic or other loads. It has an open-collector output, allowing for wired-OR configurations. The device is known for its precision and reliability, making it suitable for applications like zero-crossing detectors, voltage sensing, and simple analog-to-digital conversion.
The "SR" in the part number signifies a specific packaging type or reel size for surface-mount technology (SMT), enhancing its usability in modern electronics manufacturing. The LM393A-SR is valued for its versatility and efficiency in various analog signal processing circuits.
Key features of the LM393A-SR include low power consumption, wide supply voltage range (typically from 2V to 36V), and the ability to drive logic or other loads. It has an open-collector output, allowing for wired-OR configurations. The device is known for its precision and reliability, making it suitable for applications like zero-crossing detectors, voltage sensing, and simple analog-to-digital conversion.
The "SR" in the part number signifies a specific packaging type or reel size for surface-mount technology (SMT), enhancing its usability in modern electronics manufacturing. The LM393A-SR is valued for its versatility and efficiency in various analog signal processing circuits.
Equivalent
The LM393A-SR is a dual voltage comparator. Equivalent products include:
1. LM393 (Texas Instruments, ON Semiconductor)
2. LM393N (STMicroelectronics)
3. LM393P (Texas Instruments)
4. LM2903 (ON Semiconductor, STMicroelectronics)
5. MC3303 (ON Semiconductor)
6. TLC393 (Texas Instruments)
These alternatives offer similar functionality and might differ in parameters like package type or temperature range. Be sure to check the datasheet for compatibility with your specific requirements.
1. LM393 (Texas Instruments, ON Semiconductor)
2. LM393N (STMicroelectronics)
3. LM393P (Texas Instruments)
4. LM2903 (ON Semiconductor, STMicroelectronics)
5. MC3303 (ON Semiconductor)
6. TLC393 (Texas Instruments)
These alternatives offer similar functionality and might differ in parameters like package type or temperature range. Be sure to check the datasheet for compatibility with your specific requirements.
Features
The LM393A-SR is a dual voltage comparator that offers several key features. It operates with a wide supply voltage range from 2V to 36V, making it versatile for various applications. The device has a low input offset voltage and features low input bias current, enhancing precision in signal comparison. It also boasts a low power consumption, which is beneficial for battery-powered devices. The LM393A-SR provides an open-collector output, allowing for wired-AND connections and flexibility in output interfacing. It supports a wide range of operating temperatures, typically from -40°C to 85°C, enabling use in diverse environmental conditions. Additionally, it offers fast response times, which is crucial for time-sensitive applications. The device is typically packaged in a small outline (SO) format for compact circuit designs.
Pinout
The LM393A-SR is a dual differential comparator integrated circuit. It has an 8-pin configuration. Here is a brief description of its pin functions:
1. Pin 1 (Output 1): The output for 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 (VCC- or GND): Ground or negative power supply.
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): The output for comparator 2.
8. Pin 8 (VCC+): Positive power supply.
The LM393A-SR operates by comparing input voltages and determining which of the inputs is higher. It is commonly used in applications requiring low-power, low-offset voltage, and low input bias current, making it suitable for battery-operated devices and portable instrumentation.
1. Pin 1 (Output 1): The output for 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 (VCC- or GND): Ground or negative power supply.
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): The output for comparator 2.
8. Pin 8 (VCC+): Positive power supply.
The LM393A-SR operates by comparing input voltages and determining which of the inputs is higher. It is commonly used in applications requiring low-power, low-offset voltage, and low input bias current, making it suitable for battery-operated devices and portable instrumentation.
Manufacturer
The LM393A-SR is manufactured by Texas Instruments. Texas Instruments (TI) is a global semiconductor company that designs and manufactures a wide range of integrated circuits, including analog chips and embedded processors. Founded in 1930, TI is headquartered in Dallas, Texas, and is one of the largest and most well-known companies in the semiconductor industry. They focus on developing technology that makes electronics work more efficiently and effectively, serving a diverse range of markets such as industrial, automotive, personal electronics, and communications.
Application
The LM393A-SR is a dual voltage comparator commonly used in various applications. Its primary areas of application include:
1. Voltage Comparison: Ideal for comparing two voltages and determining which is higher, useful in zero-crossing detectors.
2. Waveform Generators: Used in creating square waves from sine waves.
3. Oscillators: Employed in generating precise oscillation frequencies.
4. Level Shifters: Helps in shifting voltage levels between circuits.
5. Analog Signal Processing: Useful in signal conditioning and threshold detection.
6. Battery Management: Utilized in battery level detection systems.
7. Industrial Control Systems: Applied in monitoring and control functions.
Its low power consumption and wide supply voltage range make it versatile for various electronic applications.
1. Voltage Comparison: Ideal for comparing two voltages and determining which is higher, useful in zero-crossing detectors.
2. Waveform Generators: Used in creating square waves from sine waves.
3. Oscillators: Employed in generating precise oscillation frequencies.
4. Level Shifters: Helps in shifting voltage levels between circuits.
5. Analog Signal Processing: Useful in signal conditioning and threshold detection.
6. Battery Management: Utilized in battery level detection systems.
7. Industrial Control Systems: Applied in monitoring and control functions.
Its low power consumption and wide supply voltage range make it versatile for various electronic applications.
Package
The LM393A-SR is typically available in a Small Outline Integrated Circuit (SOIC) package, which is a type of surface-mount technology package used for integrated circuits. It is compact and suitable for applications requiring minimal board space.
