TIME-DOMAIN VOLTAGE COMPARATOR FOR AN ANALOG DIGITAL CONVERTER, CAPABLE OF GUARANTEEING A STABLE OPERATION IN A LOW VOLTAGE STATE BY MINIMIZING AN ANALOG CIRCUIT

摘要

PURPOSE: A time-domain voltage comparator for an analog digital converter is provided to reduce power consumption using time delay units.;CONSTITUTION: A time-domain voltage comparator(300) comprises a first voltage-time converter(310), a second voltage-time converter(330), and a phase detector(320). The first voltage-time converter converts an input voltage into time. The second voltage-time converter converts an input voltage into time. The phase detector detects a phase of time information converted by the second voltage-time converter. The first and second voltage-time converters make matching of the voltage-time converters easy by using time delay terminals.;COPYRIGHT KIPO 2011