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Comparator ICs


This family of devices consists of four independent precision-voltage comparators with an offset voltage specification as low as 2 mV maximum for LM339A, LM239DT 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. LM239DT 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

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