Comparison circuit, electronic circuit, and control method thereof
A comparison circuit is provided herein, which includes a multiplexer, a digital-to-analog converter, and a comparator. The multiplexer outputs a first signal or a second signal to be a selection signal according to the comparison signal. The digital-to-analog converter outputs a reference signal ac...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | A comparison circuit is provided herein, which includes a multiplexer, a digital-to-analog converter, and a comparator. The multiplexer outputs a first signal or a second signal to be a selection signal according to the comparison signal. The digital-to-analog converter outputs a reference signal according to the selection signal. The comparator compares an input voltage to the reference voltage to generate the comparison signal. A programmable gain amplifier is implemented by the comparison circuit provided herein. |
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