Patent ID: 11705865

Abstract:
The present disclosure relates to a relaxation oscillator, an integrated circuit and an electronic apparatus, the relaxation oscillator comprising a first signal generation module and an oscillation module configured to output a first oscillation signal and a second oscillation signal, the first oscillation signal and the second oscillation signal being opposite in phase, the oscillation module comprising a first switch, a second switch, a capacitor, and a comparison unit. The oscillation module according to the disclosed embodiment using a floating amplifier to implement a comparator, where in a pre-charging stage, the first switch and the second switch are turned on to charge the capacitor, and a common mode of the first oscillation signal and the second oscillation signal is determined; in a comparing stage, the first switch and the second switch are turned off to output the oscillation signal. The embodiment of the present disclosure eliminates the need to provide an additional common mode feedback generation circuit, and does not require an increase in power consumption, achieving the advantages of smaller occupied area, lower power consumption, less noise, and better performance as compared with a relaxation oscillator of the related art.