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LM393 is an integrated circuit comprising two independent, high-precision voltage comparators, characterized by low offset voltage, with a maximum of 2.0mV. It is designed to operate over a wide voltage range with single-supply voltage, though it can also function with dual-supply voltage configurations. Moreover, it maintains low power consumption regardless of the supply voltage magnitude. One of its distinctive features is its ability to operate with a single-supply voltage, with the common-mode input voltage range of the comparators approaching ground level.
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Description
LM393 is an integrated circuit comprising two independent, high-precision voltage comparators, characterized by low offset voltage, with a maximum of 2.0mV. It is designed to operate over a wide voltage range with single-supply voltage, though it can also function with dual-supply voltage configurations. Moreover, it maintains low power consumption regardless of the supply voltage magnitude. One of its distinctive features is its ability to operate with a single-supply voltage, with the common-mode input voltage range of the comparators approaching ground level.
The main applications of the LM393 include limiters, simple analog-to-digital converters, pulse generators, square wave generators, delay generators, wideband voltage-controlled oscillators, MOS clock timers, multi-frequency oscillators, and high-level digital logic gate circuits. The LM393 is designed for direct connection to TTL and CMOS logic circuits. When powered by dual supplies, it is compatible with MOS logic circuits—highlighting a unique advantage of the low-power LM393 over standard comparators.
Features
● Wide single supply voltage range or dual supplies +2v to +36v or ±1v to ±18v
● Very low supply current (0.4ma) independent of supply voltage (1mw/comparator at +5v)
● Low input bias current: 25na typ
● Low input offset current: ±5na typ
● Input common-mode voltage range includes ground low output saturation voltage: 250mv typ. (io = 4ma) differential input voltage range equal to the supply voltage
Applications
● Zero-Crossing Detection
● Pulse Width Modulation (PWM)
● Overvoltage and Undervoltage Protection
● Analog-to-Digital Conversion (ADC)
● Window Comparators
● Oscillators
● Comparator-based Frequency Detectors
● Temperature Sensing
| File Name | Title | Description |
|---|---|---|
| LM393.pdf | LM393 | - |
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LM393 is an integrated circuit comprising two independent, high-precision voltage comparators, characterized by low offset voltage, with a maximum of 2.0mV. It is designed to operate over a wide voltage range with single-supply voltage, though it can also function with dual-supply voltage configurations. Moreover, it maintains low power consumption regardless of the supply voltage magnitude. One of its distinctive features is its ability to operate with a single-supply voltage, with the common-mode input voltage range of the comparators approaching ground level.
This device consists of two independent low power voltage comparators designed specifically to operate from a single supply over a wide range of voltages. Operation from split power supplies is also possible.
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