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Getting rid of AC ripple in a supply for a single supply op amp circuit

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obrien135

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If you are having trouble getting rid of ac ripple in your supply for a single supply op amp circuit, would it help to use a voltage divider instead of a zener circuit to provide the "ground" between the rails, in order to take advantage of common mode rejection?

I am adding this note to the post because I learned after posting it that PSRR has more to do with it. But I still wonder if using a divider instaed of a zener would help the situation. Can anyone respond?
 
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klystron

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CMRR only applicable for the supply voltage ; zenner plus par. cap a good idea
 

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