Use this LT1016CN8 comparator circuit from Linear Technology to get the larger of the two input signals. It has a complementary output. Its typical dual supply voltage is ±3 V, with a minimum of ±2.25 V and maximum of ±5 V. This comparator has a minimum operating temperature of 0 °C and a maximum of 70 °C. Its typical PSRR is 75 dB. It has a single channel per chip. This device is made with bipolar technology. This device uses one or two power supplies.