Hello PF! I've been quite busy on my faculty, doing my academic final work. Anyway I need somebodies expertise which involves analog multiplexers. I am using MPC506 Datasheet http://www.ti.com/lit/gpn/mpc506 I tested it and gives nice result at 5 MHz sine wave, which is more than good for my project, which is Reconfigurable active analog filter. I am using it to multiplex different resistors and capacitor at the output. Now this might be late because my work is almost done(theoretical), but in practice i had some problems. Here is the schematic: http://pokit.org/get/img/54651df9ee54b1063e5d5656ab6bff29.jpg [Broken] Does anybody know will this work in theory? I believe I will get problems because they are in parallel in some sense. I need thoughts of experts, I prey that this works :( because I wouldn't be able to finish my project. I did simulations but, they were fine but still... Thank you!