This LM239PW comparator circuit from Texas Instruments can take any two analog input signals and produce a digital output signal that will automatically indicate the higher value. It has an open collector output. Its typical dual supply voltage is ±3|±5|±9|±12 V, with a minimum of ±1 V and maximum of ±15 V. This comparator has a temperature range of -25 °C to 85 °C. This device uses one or two power supplies. It has 4 channels per chip. This device utilizes bipolar technology.
