The TLV185x and TLV186x devices are nanopower comparators with push-pull and open-drain output options. Operating down to 1.8 V while only consuming only 440 nA per channel, the TLV185x and TLV186x are well suited for voltage, current, and temperature sensing in low and high voltage low-power, always-on systems. An internal power-on reset circuit ensures that the output remains in a known state during power-up and power-down. Inputs have fail-safe inputs that can tolerate input transients without damage or false outputs.