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General Description

The LP339 consists of four independent voltage comparators

designed specifically to operate from a single power

supply and draw typically 60 μA of power supply drain current

over a wide range of power supply voltages. Operation

from split supplies is also possible and the ultra-low power

supply drain current is independent of the power supply voltage.

These comparators also feature a common-mode

range which includes ground, even when operated from a

single supply.

Applications include limit comparators, simple

analog-to-digital converters, pulse, square and time delay

generators; VCO’s; multivibrators; high voltage logic gates.

The LP339 was specifically designed to interface with the

CMOS logic family. The ultra-low supply current makes the

LP339 valuable in battery powered applications.

Advantages

Ultra-low power supply drain suitable for battery

applications

Single supply operation

Sensing at ground

Compatible with CMOS logic family

Pin-out identical to LM339

Features

Ultra-low power supply current drain

(60 μA)—independent of the supply voltage

(75 μW/comparator at +5 VDC)

Low input biasing current: 3 nA

Low input offset current: ±0.5 nA

Low input offset voltage: ±2 mV

Input common-mode voltage includes ground

Output voltage compatible with MOS and CMOS logic

High output sink current capability (30 mA at VO=2 VDC)

Supply Input protected against reverse voltages