peculiarity
Wide supply voltage range
LM139/139A series
2 to 36 V DC
or ± 1 to ± 18 V dc
LM2901：
2 to 36 V DC
or ± 1 to ± 18 V dc
LM3302：
2 to 28 V DC
or ± 1 to ± 14 V dc
Very low supply current consumption (0.8 mA) - independent of supply voltage
Low input bias current:
25 nA
Low input offset current:
± 5 NA
Offset voltage:
± 3 mV
The input common-mode voltage range includes GND
The differential input voltage range is equal to the supply voltage
Low output saturation voltage:
250 mV at 4 mA
Output voltages are compatible with TTL, DTL, ECL, MOS and CMOS logic systems
illustrate
The LM139 series consists of four independent precision voltage comparators with low offset voltage specifications of up to 2 mV compared to all four. This is designed to operate from a single supply voltage range. Operation from splitting the power supply is also possible and low supply current consumption is independent of the magnitude of the supply voltage. These comparisons also have a unique feature of the input common-mode voltage range including ground, although operating from a single supply voltage.
Applications include analog-to-digital converters with relatively simple limits, pulse, square wave and time delay generators, MOS clock timers for a wide range of VCOs, multivibrators, and high-voltage digital logic gates. The LM139 series is designed to interface directly with TTL and CMOS. When running from plus and minus power supplies, they will interface directly with MOS logic, and the low power consumption of the LM339 is a clear advantage over the standard comparison.
apply
High precision comparator
V OS reduces temperature drift
There is no need to power dual power supplies
Allows for a sense of grounding nearby
Compatible with all forms of logic
Power consumption, suitable for battery operation