The LM393/LM339/LM2903/LM2901 series of comparators are integrated circuits launched by Rohm, which feature high gain, low power consumption, and a wide voltage range. This series of products has commercial and industrial grades. The temperature range of commercial grade is 0℃ to 70℃. The temperature range of industrial grade is -40℃ to 125℃. The output stage of this series of products adopts open collector output, which can be compatible with single/dual power supply. The supply current is 0.4 mA (LM2903/393 series) and 1.1 mA (LM2901/339 series). The input bias current is 25 nA. The input offset current is 5 nA. The input voltage range includes ground. The differential input voltage can be applied to the absolute maximum rating ±36 V. The output voltage is TTL, MOS and CMOS compatible output.
This Technical Note describes the LM393WPT comparator and related devices in the LM393/LM339/LM2903/LM2901 families. It includes a description of the device features, pin assignments, absolute maximum ratings, and detailed electrical characteristics.
The document also presents reference data such as derating curves, response times, and package information (Mini‑SO8, TSSOP). It is intended for designers who need typical performance parameters and example application circuits for these comparators.
| Operating voltage range | 2 V to 36 V |
|---|---|
| Typical supply current (LM393/LM2903 family) | 0.4 mA |
| Typical input bias current | 25 nA |
| Industrial temperature range (LM2903/LM2901 family) | -40 °C to +125 °C |
The LM393 operates from 2 V up to 36 V.
Typical supply current is 0.4 mA for the LM393/LM2903 family.
The typical input bias current is 25 nA.
Industrial‑grade LM2903 devices operate from –40 °C to +125 °C.