/diy/ - Do It Yourself

>>1743513
>le fourth turning
no thanks, I just ate
DSPs are plenty accessible to hobbyists. if the math instructions built into the medium-low-tier ARM MCUs aren't enough, FPGAs are also fairly cheap and come in reasonable QFPs
>voltage-based signal processing
but you're not always dealing with voltages
>matched pairs
easy example: precision current mirrors. complementary matched pair application: reducing even-harmonic distortion in a power amplifier
>long-tailed pairs
sometimes the extra gain of an opamp can be a liability e.g. inserts delay or poles you can't tolerate due to the instability they bring, amplifies thermal noise too much

>>1743522
same here, fren, except I skipped college and my senior year of high school entirely. I'd like to FUCK the academy. learned more from the bipolar guy down the street than from school