Low Power Low Offset Voltage Quad ComparatorsGeneral DescriptionThe LM139 series consists of four independent precisionvoltage comparators with an offset voltage specification aslow as 2 mV max for all four comparators. These were designedspecifically to operate from a single power supplyover a wide range of voltages. Operation from split powersupplies is also possible and the low power supply currentdrain is independent of the magnitude of the power supplyvoltage. These comparators also have a unique characteristicin that the input common-mode voltage range includesground, even though operated from a single power supplyvoltage.Application areas include limit comparators, simple analog todigital converters; pulse, squarewave and time delay generators;wide range VCO; MOS clock timers; multivibratorsand high voltage digital logic gates. The LM139 series wasdesigned to directly interface with TTL and CMOS. When operatedfrom both plus and minus power supplies, they will directlyinterface with MOS logic— where the low power drainof the LM339 is a distinct advantage over standard comparators.Advantagesn High precision comparatorsn Reduced VOS drift over temperaturen Eliminates need for dual suppliesn Allows sensing near GNDn Compatible with all forms of logicn Power drain suitable for battery operationFeaturesn Wide supply voltage range— LM139/139A Series 2 to 36 VDC or ±1 to ±18 VDC— LM2901: 2 to 36 VDC or ±1 to ±18 VDC— LM3302: 2 to 28 VDC or ±1 to ±14 VDCn Very low supply current drain (0.8 mA) — independentof supply voltagen Low input biasing current: 25 nAn Low input offset current: ±5 nAn Offset voltage: ±3 mVn Input common-mode voltage range includes GNDn Differential input voltage range equal to the powersupply voltagen Low output saturation voltage: 250 mV at 4 mAn Output voltage compatible with TTL, DTL, ECL, MOSand CMOS logic systemsConnection DiagramsDS005706-27Order Number LM139AW/883 or LM139W/883 (Note 1)LM139AWRQML and LM139AWRQMLV(Note 3)See NS Package Number W14BLM139AWGRQML and LM139AWGRQMLV(Note 3)See NS Package Number WG14ANovember 1999LM139/LM239/LM339/LM2901/LM3302 Low Power Low Offset Voltage Quad Comparators©全新原装特价0755-89802518