The TLV185x and TLV186x devices are nanopower comparators with push-pull and open-drain output options. Operating down to 1.8V while only consuming only 440nA 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.