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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.

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