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LP339M Schematic ( PDF Datasheet ) - National Semiconductor

Teilenummer LP339M
Beschreibung Ultra-Low Power Quad Comparator
Hersteller National Semiconductor
Logo National Semiconductor Logo 




Gesamt 11 Seiten
LP339M Datasheet, Funktion
September 1999
LP339
Ultra-Low Power Quad Comparator
General Description
The LP339 consists of four independent voltage compara-
tors designed specifically to operate from a single power
supply and draw typically 60 µA of power supply drain cur-
rent 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 volt-
age. 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
n Ultra-low power supply drain suitable for battery
applications
n Single supply operation
n Sensing at ground
n Compatible with CMOS logic family
n Pin-out identical to LM339
Features
n Ultra-low power supply current drain
(60 µA) — independent of the supply voltage
(75 µW/comparator at +5 VDC)
n Low input biasing current: 3 nA
n Low input offset current: ±0.5 nA
n Low input offset voltage: ±2 mV
n Input common-mode voltage includes ground
n Output voltage compatible with MOS and CMOS logic
n High output sink current capability (30 mA at VO=2 VDC)
n Supply Input protected against reverse voltages
Schematic and Connection Diagrams
DS005226-1
Typical Applications (V+= 5.0 VDC)
Basic Comparator
DS005226-2
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
Driving CMOS
DS005226-3
© 1999 National Semiconductor Corporation DS005226
DS005226-4
www.national.com






LP339M Datasheet, Funktion
Typical Applications (V+=15 VDC) (Continued)
Squarewave Oscillator
DS005226-17
Three Level Audio Peak Indicator
www.national.com
LED Driver
DS005226-19
DS005226-22
6

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