Hi all,
I haven't experimented with charge pumps in the past but I'm designing a circuit that needs a little extra headroom and good noise-free power. I'm considering using a Road Rage to provide either +/-9v (and run it as a bipolar supply) or +15v regulated (and set the bias with the classic voltage divider method).
My question is: the -9v tap on a Road Rage board has a simple 10uF capacitor on it for filtering, which... doesn't seem like a lot. Is the +/-9v bipolar supply going to be noisier than the 15v coming off the 78L15 regulator?
I haven't experimented with charge pumps in the past but I'm designing a circuit that needs a little extra headroom and good noise-free power. I'm considering using a Road Rage to provide either +/-9v (and run it as a bipolar supply) or +15v regulated (and set the bias with the classic voltage divider method).
My question is: the -9v tap on a Road Rage board has a simple 10uF capacitor on it for filtering, which... doesn't seem like a lot. Is the +/-9v bipolar supply going to be noisier than the 15v coming off the 78L15 regulator?