ST LM139, LM239, LM339 Low-power quad voltage comparators
Summary
These four independent precision low-power quad voltage comparators are designed for high-reliability signal comparison across wide single or dual power supply ranges. Featuring ultra-low input bias and offset currents, they ensure stable performance while maintaining compatibility with TTL, CMOS, and ECL logic types. The manual provides comprehensive specifications including absolute maximum ratings, operating temperature limits, multiple package options (DSO/TSSOP/QFN), and full electrical characteristics needed for integrating dependable voltage comparison circuitry into demanding electronic designs.
Page 1 Text Content
LM139, LM239, LM339
Low-power quad voltage comparators
Features Wide single supply voltage range or dual supplies for all devices: +2 to +36 V or ±1 V to ±18 V Very low supply current (1.1 m A) independent
DIP14
of supply voltage
(Plastic package)
Low input bias current: 25 n A typ Low input offset current: ±5 n A typ Low input offset voltage: ±1 m V typ Input common-mode voltage range includes ground
Low output saturation voltage: 250 m V typ; SO-14
(ISINK = 4 m A) (Plastic micropackage)
Differential input voltage range equal to the supply voltage TTL, DTL, ECL, MOS, CMOS compatible outputs
Description TSSOP14
(Thin shrink small outline package)
This family of devices consists of four independent precision-voltage comparators with an offset voltage specification as low as 2 m V maximum for LM339A, LM239A and LM139A. Each comparator has been designed specifically to operate from a single power supply over a wide range of voltages. Operation from split power supplies is also possible.
QFN16 3x3
These comparators also have a unique
(Plastic micropackage)
characteristic in that the input common mode voltage range includes ground even though operated from a single power supply voltage.
July 2011 Doc ID 2159 Rev 3 1/19
www.st.com
Page Summary Contents For ST LM139, LM239, LM339 Low-power quad voltage comparators
Manual Details
| Brand | QUAD |
|---|---|
| Pages | 19 |
| File Size | 544.15 KB |
| Published | June 04, 2026 |
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