LM393
Dual Differential Voltage Comparator IC
Internal Reference:
UPC393
The LM393 is a low-power dual voltage comparator IC featuring two independent precision comparators in a DIP package. Widely used in sensor modules, voltage detection circuits, battery monitoring, and industrial control applications.
Description
The LM393 is a versatile dual differential voltage comparator integrated circuit designed for accurate voltage comparison in a wide range of electronic applications. It contains two independent comparators capable of operating from a single power supply or dual power supplies, making it suitable for both analog and digital systems.
With its low power consumption, wide supply voltage range, and open-collector outputs, the LM393 is commonly used in sensor interfaces, threshold detection circuits, battery monitoring systems, level detection applications, and signal conditioning circuits.
The DIP package makes the LM393 easy to use in breadboard prototyping, educational projects, and PCB designs. Due to its reliability and cost-effectiveness, it has become one of the most widely used comparator ICs in the electronics industry.
Key Features
- Dual independent voltage comparators
- Wide single-supply or dual-supply operation
- Low power consumption
- Open-collector output configuration
- Compatible with TTL, CMOS, and microcontroller circuits
- Fast response time for comparator applications
- High noise immunity
- Suitable for battery-powered systems
- Easy-to-use DIP package for prototyping and production
Technical Specifications
- Part Number: LM393
- Function: Dual Differential Voltage Comparator
- Number of Comparators: 2
- Package Type: DIP-8
- Output Type: Open Collector
- Supply Voltage (Single Supply): 2V to 36V
- Supply Voltage (Dual Supply): ±1V to ±18V
- Input Offset Voltage: Typically 2 mV
- Input Bias Current: Typically 25 nA
- Response Time: Approximately 1.3 μs
- Operating Temperature: 0°C to +70°C (Commercial Grade)
- Mounting Type: Through-Hole
Applications
- Light detection circuits
- IR obstacle avoidance sensors
- Battery voltage monitoring
- Over-voltage and under-voltage protection
- Zero-crossing detectors
- Window comparators
- Signal conditioning circuits
- Industrial automation systems
- Motor control circuits
- Microcontroller interface circuits
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