COMPARATOR CIRCUIT HAVING A CALIBRATION CIRCUIT

摘要

A comparator circuit includes a comparator, a first selection circuit, and a switched-capacitor circuit. The comparator has a first terminal, a second terminal, and an output terminal. The comparator is configured to generate an output signal at the output terminal based on a first signal on the first terminal and a second signal on the second terminal. The first selection circuit is coupled with the first terminal of the comparator and configured to selectively set a first input signal or a first calibration signal as the first signal in response to a control signal. The switched-capacitor circuit is coupled with the output terminal and the second terminal of the comparator. The switched-capacitor circuit is configured to adjust and output the second signal based on the output signal.

主权项

1. A comparator circuit comprising:
a comparator having a first terminal, a second terminal, and an output terminal, the comparator being configured to generate an output signal at the output terminal based on a first signal on the first terminal and a second signal on the second terminal; a first selection circuit coupled with the first terminal of the comparator and configured to selectively set a first input signal or a first calibration signal as the first signal in response to a control signal; and a switched-capacitor circuit coupled with the output terminal and the second terminal of the comparator, the switched-capacitor circuit being configured to adjust and output the second signal based on the output signal.