Re: Comparators outputs Oscillate
What is a steady DC voltage when every electronic circuit produces some noise.
When the noise at the input is amplified 200,000 times then do you think the output is a steady DC voltage? Of course not, the output is bouncing up and down by the amplified noise. Then the output is capacitive-coupled back to the input and is amplified 200,000 times again and the output is capacitive-coupled back to the input and is amplified 200,000 times again and the output is capacitive-coupled back to the input and is amplified 200,000 times again and the output is capacitive-coupled back to the input and is amplified 200,000 times again and .... it is an oscillator. Almost EVERY oscillator is started with noise.
Quote: "So what you're saying is that the stray capacitances from the output pin to the input pin there is Capacitance which converts the DC output of the comparator into AC oscillation?"
No. The stray capacitance from the output pin to the input pin couples Amplified Noise. The tiny capacitance passes only high frequencies so the oscillation is a high frequency.