LM393 is an integrated dual differential comparator, single power supply, compatible with TTL, MOS, CMOS circuits, with two independent comparators, common cathode output, often used as voltage comparator, logic gate, square wave generator, oscillator, etc
The LM393 dual differential comparator integrates two voltage comparators that share a common power supply. It operates from 2 V to 36 V and supports temperatures from 0 °C to 70 °C. Key features include low input bias current, low offset voltage, and low supply current.
The datasheet provides pin arrangements for SOP and DIP packages, absolute maximum ratings, detailed electrical characteristics, a circuit schematic, and recommended application circuits such as zero‑crossing detectors and oscillators. Design notes advise using input resistors under 10 kΩ to prevent oscillation. This manual is written in Chinese.
| Supply Voltage Range | 2 V to 36 V |
|---|---|
| Output Sink Current (typ) | 6.0 mA |
| Output Sink Current (max) | 16 mA |
| Power Dissipation (25 °C) | 570 mW |
| Operating Temperature Range | 0 °C to 70 °C |
The LM393 can be powered from 2 V up to 36 V.
Use input resistors less than 10 kΩ to prevent oscillation.
The LM393 can sink up to 16 mA.