arunm
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Posts: 9
Chennai, India
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I am designing a continuous-time comparator. The typical signal to it is a ramp. The ramp slope can be really small. I want to make sure that the output doesn't toggle near the comparison point. But I am not sure how much hysteresis to put in. Disturbances from power supply and other coupling can be quantified, but what about noise? Whatever hysteresis I put in, if the input signal slope is really small, then low frequency flicker noise can make the output toggle right? I would like to know if this is really a practical concern, and if it is, how do we go about solving this?
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