I have a quesion about voltage regulator accuracy. When a spec sheet lists a regulator as outputting a certain voltage (5V in my case) to within 2%, does that mean that everytime my circuit is powered up my voltage could change by up to 2%? Or are regulators "graded" at the factory such that if I have one that regulates to 4.95V that it'll always be around 4.95V?
I have a circuit with a sensor that uses 5V as a reference. If my voltage from my regulator changes by 2% every time, then this would introduce error into my circuit. I don't care if my VR puts out exactly 5V as I can calibrate my circuit. I just don't want it changing.
Or do I need to use some sort of precision reference?
I have a circuit with a sensor that uses 5V as a reference. If my voltage from my regulator changes by 2% every time, then this would introduce error into my circuit. I don't care if my VR puts out exactly 5V as I can calibrate my circuit. I just don't want it changing.
Or do I need to use some sort of precision reference?