I'll post the schematic. Still curious why you wouldn't, until I spilled the beans.bobbyk said:How did you get 1.476? I've never been able to get a gain that large!
How many R's and C's did you need?
And thanks for your interest in this question! I think it's fascinating!
I shrunk the schematic to get it to fit on the forum, so I am listing the component values here:
R1=100, C1=1u
R2=316, C2=316n
R3=1k, C3=100n
R4=3.16k, C4=31.6n
R5=10k, C5=10n
R6=31.6k, C6=3.16n
R7=100k, C7=1n
R8=316k, C8=316p
R9=1Meg, C9=100p
Notice that the values are evenly spaced on a log scale. I don't know if this is optimum.
I suspect that the gain approaches 1.5 asymptotically as the number of elements approaches infinity, but I wouldn't know how to prove it.
EDIT: The output is the R9C9 junction.
EDIT: I changed all the log2 capacitors and resistors to 0.5, i.e.,
R1=100, C1=1u
R2=500, C2=500n
R3=1k, C3=100n
R4=5k, C4=50n
R5=10k, C5=10n
R6=50k, C6=5n
R7=100k, C7=1n
R8=500k, C8=500p
R9=1Meg, C9=100p
and the max gain went down slightly, to 1.470.
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