LM2903/LM2903I, LM393/LM393A, LM293/LM293A are dual independent voltage comparators designed to operate from a single power supply over a wide voltage range.
The LM2903/LM29031, LM393/LM393A, and LM293/LM293A are dual differential comparators offered by Fairchild Semiconductor. They feature single‑supply operation from 2 V to 36 V, low input bias current, and low offset voltage.
The document includes detailed electrical characteristics, absolute maximum ratings, typical performance graphs, mechanical dimensions for 8‑DIP and 8‑SOP packages, ordering information, and legal notices.
| Supply Voltage (VCC) | +18 to +36 V |
|---|---|
| Input Bias Current | 25 nA typ. |
| Input Offset Voltage | 1 mV typ. |
| Operating Temperature (LM393/LM393A) | 0 °C to +70 °C |
The LM2903 can operate with a supply voltage from 2 V up to 36 V, with a typical range of +18 V to +36 V.
The typical input bias current is 25 nA.
The LM393 operates from 0 °C to +70 °C, while the LM2903 operates from –40 °C to +85 °C (or up to +105 °C for the LM2903I version).