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technobots.co.uk 2241-340 LP339 Ultra-Low Power Quad Comparator General Description The LP339 consists of four independent voltage comparators designed specifically to operate from a single power supply and draw typically 60 mA 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. Y Y Y Y Features Y Y Y Y Y Y Y Advantages Y 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 Y Ultra-low power supply current drain (60 mA)Ðindependent of the supply voltage (75 mW/comparator at a 5 VDC ) Low input biasing current 3 nA g 0.5 nA Low input offset current g 2 mV Low input offset voltage Input common-mode voltage includes ground Output voltage compatible with MOS and CMOS logic High output sink current capability (30 mA at VO e 2 VDC ) Supply Input protected against reverse voltages Schematic and Connection Diagrams TL/H/5226 – 1 TL/H/5226 – 2 Order Number LP339M for S.O. Package See NS Package Number M14A Order Number LP339N for Dual-In-Line Package See NS Package Number N14A Typical Applications (V a e 5.0 VDC) Basic Comparator Driving CMOS TL/H/5226 – 3 TL/H/5226 – 4 C1995 National Semiconductor Corporation TL/H/5226 RRD-B30M115/Printed in U. S. A. LP339 Ultra-Low Power Quad Comparator February 1995