This is a module I built based on the Midimplant board. They are capable of different configurations which you can upload via midi Sysex. The website has a configuration widget here, which makes things incredibly easy. One of these options will convert midi to CV and Gate signals for 2 independent midi channels. My eventual goal is to have a 4 channel midi to CV module, so I hope to be getting another board when they are available. With that in mind, I designed the module and the PCB to be ready for my future configurations.
Here's the pinout. Something to keep in mind, is the gate signal is whatever the Positive voltage input is. my system is a standard Synthesizers.com/motm +/-15V. All my modules seem to work fine with 15v gate, so I didn't really worry about adding a voltage regulator, but it would be easy to implement if that was a requirement.