Patent ID: 11899049
Assignee: REALTEK SEMICONDUCTOR CORPORATION
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 11:
12. The comparison circuit operation method of claim 7, wherein the comparison circuit is disposed in an analog-to-digital conversion circuit, the comparison circuit operation method further comprises:
enabling the comparator enabled by the enabling signal at the enabling state in each of a plurality of comparison stages so as to compare the first voltage and the second voltage respectively to generate the comparison result;
sampling a positive terminal input voltage and a negative terminal input voltage to output the first voltage and the second voltage by a digital-to-analog conversion (DAC) circuit of the comparison circuit; and
in each of the comparison stages, switching a configuration of the digital-to-analog conversion circuit by using a set of digital codes according to the comparison result, and outputting the corresponding set of digital codes as a digital output signal when a difference between the first voltage and the second voltage is smaller than a predetermined level by a control circuit of the comparison circuit.