LM139/LM239/LM339/LM2901/LM3302 Low Power Low Offset Voltage Quad Comparators
March 2004
LM139/LM239/LM339/LM2901/LM33...
LM139/LM239/LM339/LM2901/LM3302 Low Power Low Offset
Voltage Quad Comparators
March 2004
LM139/LM239/LM339/LM2901/LM3302
Low Power Low Offset
Voltage Quad Comparators
General Description
The LM139 series consists of four independent precision
voltage comparators with an offset
voltage specification as low as 2 mV max for all four comparators. These were designed specifically to operate from a single power supply over a wide range of
voltages. Operation from split power supplies is also possible and the low power supply current drain is independent of the magnitude of the power supply
voltage. These comparators also have a unique characteristic in that the input common-mode
voltage range includes ground, even though operated from a single power supply
voltage.
Application areas include limit comparators, simple analog to digital converters; pulse, squarewave and time delay generators; wide range VCO; MOS clock timers; multivibrators and high
voltage digital logic gates. The LM139 series was designed to directly interface with TTL and
CMOS. When operated from both plus and minus power supplies, they will directly interface with MOS logic — where the low power drain of the LM339 is a distinct advantage over standard comparators.
Features
n Wide supply
voltage range
n LM139/139A Series
2 to 36 VDC or ±1 to ±18 VDC
n LM2901:
2 to 36 VDC or ±1 to ±18 VDC
n LM3302:
2 to 28 VDC or ±1 to ±14 VDC
n Very low supply current drain (0.8 mA) — independent
of supply
voltage
n ...