The LM393 is a widely used dual voltage comparator IC (integrated circuit). Voltage comparators are electronic devices that compare two input voltage signals and provide a high or low output based on the comparison. The LM393, in particular, contains two separate voltage comparators in a single package.
Here are some key characteristics and specifications of the LM393 voltage comparator:
Type: LM393 is a dual voltage comparator IC.
Package: It typically comes in an 8-pin DIP (Dual Inline Package) or SOIC (Small Outline Integrated Circuit) package.
Supply Voltage: The LM393 can operate with a wide range of supply voltages, often from a minimum of around 2 volts up to 36 volts, making it suitable for a variety of applications.
High and Low Inputs: Each comparator in the LM393 has two input pins: one for the non-inverting input (+) and one for the inverting input (-). These inputs are used to compare two voltage signals.
Output: The LM393 has open-drain outputs, which means they can sink current when the output is low but do not actively drive the output high. This is useful in applications where you need to interface with different logic levels.
Hysteresis: Some versions of the LM393 include hysteresis, which is a built-in feature that prevents rapid switching near the voltage threshold, reducing noise and ensuring stable operation.
Applications: The LM393 is commonly used in applications like window comparators, signal conditioning, voltage monitoring, oscillators, and more. It's a versatile component for comparing and controlling voltage levels.
Pinout: The 8-pin DIP or SOIC package of the LM393 has two comparators, and each comparator has two inputs, a non-inverting input (pin 3 and 5) and an inverting input (pin 2 and 6). The outputs for the two comparators are on pins 1 and 7.
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