Features
• Wide single supply voltage range or dual
supplies for all devices: +2 to +36 V or ±1 V to
±18 V
• Very low supply current (1.1 mA) independent
of supply voltage
• Low input bias current: 25 nA typ
• Low input offset current: ±5 nA typ
• Low input offset voltage: ±1 mV typ
• Input common-mode voltage range includes
ground
• Low output saturation voltage: 250 mV typ;
(ISINK = 4 mA)
• Differential input voltage range equal to the
supply voltage
• TTL, DTL, ECL, MOS, CMOS compatible
outputs

Description
This family of devices consists of four independent precision-voltage comparators with an offset voltage specification as low as 2 mV maximum for LM339A, LM239A, and LM139A. Each comparator has been designed specifically to operate from a single power supply over a wide range of voltages. Operation from split power supplies is also possible.
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.