If you need a digital signal to distinguish the larger of two input signals then pick up this MCP6561UT-E/OT comparator circuit from Microchip Technology today. It has a push-pull output. This comparator has a minimum operating temperature of -40 °C and a maximum of 125 °C. It has a single channel per chip. This device is made with CMOS technology. Its typical PSRR is 70 dB. This device uses a single power supply.