The LM139/LM239/LM339/LM2901/LM3302 is a low power low offset voltage quad comparator.
The LM139 series and its related parts (LM239, LM339, LM2901, LM3302) are low‑power, low‑offset voltage quad comparators designed for single‑supply operation over a wide voltage range. They feature offset voltages as low as 2 mV, low supply current (0.8 mA), and input common‑mode range that includes ground.
The document provides absolute maximum ratings, detailed electrical characteristics, typical performance curves, application hints for preventing oscillation, example circuit configurations, and physical dimensions for various package types. It also includes compliance statements for life‑support and banned‑substance policies.
| Supply voltage range | 2 V to 36 V (LM139/LM139A) or +1 V to +18 V |
|---|---|
| Supply current | 0.8 mA (independent of supply voltage) |
| Input offset voltage | as low as 2 mV max |
| Input bias current | 25 nA |
| Output saturation voltage | 250 mV at 4 mA |
The LM139 series operates from 2 V to 36 V (or +1 V to +18 V for the LM139A version).
The devices draw a very low supply current of about 0.8 mA, independent of the supply voltage.
The input common‑mode voltage range includes ground and extends up to V* − 1.5 V at 25 °C.