Part # LM139JAN datasheet

Part Manufacturer: National Semiconductor

National Semiconductor

Part Description: LM139JAN Low Power Low Offset Voltage Quad Comparators

Part Details:

LM139JAN February 2005 LM139JAN Low Low Power Low Offset Voltage Quad ComparatorsGeneral Description Features Power The LM139 consists of four independent precision voltage n Wide supply voltage range 5V to 36 V or ±2.5V to DC comparators with an offset voltage specification as low as 2 ±18 VDC mV max for all four comparators. These were designed n Very low supply current drain (0.8 mA) -- independent specifically to operate from a single power supply over a of supply voltage Low wide range of voltages. Operation from split power supplies n Low input biasing current: 25 nA is also possible and the low power supply current drain is n Low input offset current: ±5 nA independent of the magnitude of the power supply voltage. n Offset voltage: ±3 mV These comparators also have a unique characteristic in that Offset n Input common-mode voltage range includes GND the input common-mode voltage range includes ground,even though operated from a single power supply voltage. n Differential input voltage range equal to the power supply voltage Application areas include limit comparators, simple analog to n Low output saturation voltage: 250 mV at 4 mA digital converters; pulse, squarewave and time delay gen- V erators; wide range VCO; MOS clock timers; multivibrators n Output voltage compatible with TTL, DTL, ECL, MOS and CMOS logic systems oltage and high voltage digital logic gates. The LM139 was de-signed to directly interface with TTL and CMOS. When op-erated from both plus and minus power supplies, they will Advantages directly interface with MOS logic -- where the low power n High precision comparators drain of the LM139 is a distinct advantage over standard n Reduced V drift over temperature Quad OS comparators. n Eliminates need for dual supplies n Allows sensing near GND

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LM139JAN.pdf Datasheet