On dual 15V supply, to make a 16:1 x 2 differential mux that specs well for pro audio, it looks like ADG1407 x 2 would be the best starting point.
Optimistic expectation is -115dB THD+N into 10K, which looks attainable with that part. Relevant bandwidth is 20Hz - 200kHz. Signals are 22dBu SE or 28dBu differential.
I’m a noob with muxes, so forgive my unfamiliarity. This is for rotary switch replacement. Let’s just say the end goal is the equivalent of a 4P16T rotary switch.
1. Are there reference designs for controlling multiple 8:1 x 2 muxes from a single encoder? I’d like to avoid cascading switches.
2. Igor mentioned in 2021 that y’all were working on a THD calculator for your switches and muxes. I’m not finding it with the other calculators. Does it exist?
3. It looks like complimentary parts for relay replacement and smaller scale switching (with similarly transparent audio results) are ADG1411, 1412, 1413. Am I on the right track?
