The LM211DT is a Voltage Comparator has low input currents and strobe. It is also designed to operate over a wide range of supply voltages from standard ±15V operational amplifier supplies down to the single 5V supply used for IC logic. Its output is compatible with RTL-DTL and TTL as well as MOS circuits and can switch voltages up to 50V at output currents as high as 50mA.