There have been a handful of products that have tried to be an FPGA for analog circuits, but unfortunately those applications are far, far more sensitive to sig

There have been a handful of products that have tried to be an FPGA for analog circuits, but unfortunately those applications are far, far more sensitive to signal integrity issues, so it's harder to just abstract away all the intermediate fabric that connects up your function blocks the way you can with a digital circuit. This post explains further: https://electronics.stackexchange.com/a/25529 https://electronics.stackexchange.com/a/25529 Here's an example [0] of some of the many considerations that come into play when laying out even a conventional PCB that handles analog signals, from which it's not hard to imagine how much more of issue basically all of that stuff would be when happening inside a single chip package— particularly when part of the point of analog circuits for audio processing is often to achieve the aesthetically interesting effects that happen when components are overdriven, oscillating or feeding back, in breakdown, etc. Not hard to see why modern programmable effects pedals just have a high speed DAC and do everything in discretized space. [0]: https://resources.altium.com/p/pcb-design-rules-analog-circuits https://resources.altium.com/p/pcb-design-rules-analog-circu...