Part # LM393 datasheet

Part Manufacturer: National Semiconductor

National Semiconductor

Part Description: LM193 LM293 LM393 LM2903 Low Power Low Offset Voltage Dual Comparators

Part Details:

LM193/LM293/LM393/LM2903 August 2002 LM193/LM293/LM393/LM2903Low Power Low Offset Voltage Dual ComparatorsGeneral Description Advantages The LM193 series consists of two independent precision n High precision comparators voltage comparators with an offset voltage specification as n Reduced V drift over temperature OS low as 2.0 mV max for two comparators which were de- n Eliminates need for dual supplies signed specifically to operate from a single power supply n Allows sensing near ground over a wide range of voltages. Operation from split power n Compatible with all forms of logic supplies is also possible and the low power supply current n Power drain suitable for battery operation drain is independent of the magnitude of the power supplyvoltage. These comparators also have a unique characteris-tic in that the input common-mode voltage range includes Features Low ground, even though operated from a single power supply n Wide supply voltage. -- Voltage range: 2.0V to 36V Application areas include limit comparators, simple analog to -- Single or dual supplies: ±1.0V to ±18V Power digital converters; pulse, squarewave and time delay gen- n Very low supply current drain (0.4 mA) -- independent erators; wide range VCO; MOS clock timers; multivibrators of supply voltage and high voltage digital logic gates. The LM193 series was n Low input biasing current: 25 nA designed to directly interface with TTL and CMOS. When n Low input offset current: ±5 nA operated from both plus and minus power supplies, the n Maximum offset voltage: ±3 mV Low LM193 series will directly interface with MOS logic where n Input common-mode voltage range includes ground their low power drain is a distinct advantage over standard n Differential input voltage range equal to the power comparators. supply voltage Offset The LM393 and LM2903 parts are available in National s n Low output saturation voltage,: 250 mV at 4 mA innovative thin micro SMD package with 8 (12 mil) large

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LM393.pdf Datasheet