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

Claim 5:
6. The comparison circuit of claim 1, wherein the comparison circuit is disposed in an analog-to-digital conversion (ADC) circuit and the comparator is configured to be 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, the comparison circuit further comprises:
a digital-to-analog conversion (DAC) circuit configured to sample a positive terminal input voltage and a negative terminal input voltage to output the first voltage and the second voltage; and
a control circuit configured to, in each of the comparison stages, switch a configuration of the digital-to-analog conversion circuit by using a set of digital codes according to the comparison result, and configured to output 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.