US Patent 10003353 Time-based delay line analog comparator

Embodiments of the present disclosure include voltage comparators. The voltage comparators may include a first input configured to receive a first analog voltage, a second input configured to receive a second analog voltage, a first digital delay line configured to propagate the first analog voltage through a first delay circuit and the second analog voltage through a second circuit, and an output circuit configured to provide a comparator output based upon whether values representing the first analog voltage or the second analog voltage propagated faster through the first digital delay line. The comparator output may be configured to identify whether the first analog voltage or the second analog voltage is greater.