AU2901

Philips Semiconductors Linear Products Product specification Quad voltage comparator AU2901 DESCRIPTION The AU2901 consists of four independent precision voltage comparators, with an offset voltage specification as low as 2.0mV max for each comparator, which 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 they are operated from a single power supply voltage. The AU2901 was designed to directly interface with TTL and CMOS. When operated from both plus and minus power supplies, the AU2901 will directly interface with MOS logic where their low power drain is a distinct advantage over standard comparators. PIN CONFIGURATION D, N Packages OUTPUT 2 OUTPUT 1 V+ INPUT 1 – INPUT 1 + INPUT 1 – INPUT 1 + 1 2 3 1 4 5 6 7 2 3 4 11 10 9 8 INPUT 4 + INPUT 4 – INPUT 3 + INPUT 3 – 14 13 12 OUTPUT 3 OUTPUT 4 GND TOP VIEW FEATURES Wide single supply voltage range 2.0VDC to 36VDC or dual supplies ±1.0VDC to ±18VDC EQUIVALENT CIRCUIT V+ Very low supply current drain (0.8mA) independent of supply voltage (1.0mW/comparator at 5.0VDC) Low input biasing current 25nA Low input offset current ±5nA and offset voltage Input common–mode voltage range includes groun...