TIME DOMAIN VOLTAGE COMPARATOR OF ANALOG-DIGITAL CONVERTER

摘要

The present invention relates to an analog-digital converter, and more specifically, to a time domain voltage comparator of an analog-digital converter for converting a voltage difference into a time difference. Thus, the invention provides a voltage comparator used for the analog-digital converter, the voltage comparator comprises: a first voltage-time converter in which at least one time delay line is connected in serial whereby a voltage is converted into time information; a second voltage-time converter in which at least one time delay line is connected in serial whereby a voltage is converted into time information; and a phase comparator which distinguishes a difference between times outputted from the first voltage-time converter and the second voltage-time converter.