LM339 Precision Voltage Comparators
Four independent comparators with low offset voltage and wide supply range.
- Supply Voltage (VS): 36 VDC or ±18 VDC
- Differential Input Voltage: 36 VDC
- Input Voltage: -0.3 VDC to +36 VDC
- Input Current (VIN < -0.3 VDC): 50 mA
- Output Short-Circuit to GND: Continuous
- Storage Temperature Range: -65°C to +150°C
- Lead Temperature: 260°C
Top Features:
- Wide supply voltage range
- Low supply current drain (0.8 mA)
- Low input biasing current: 25 nA
- Low output saturation voltage: 250 mV at 4 mA
The LM339 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, square wave and time delay generators; wide range VCO; MOS clock timers; multi vibrators and high voltage digital logic gates. 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.
Output voltage is compatible with TTL, DTL, ECL, MOS, and CMOS logic systems.
Related Document: LM339 IC Datasheet
* Images are for illustration only; actual product may vary.