MD741, a dis-integrated circuit
A 741-style op-amp made of discrete components, DIP-8 size
This is a challenge posted by Albert van Dalen that is extremely silly (so, ideal for me). So, Evil Mad Scientist Labs famously scaled up the old μA741 op-amp, splitting it into discrete parts. Can it be scaled back down to DIP-8 size, but keeping the discrete parts?
More info on Albert's personal site. I had to adapt the challenge a little bit; I found the SOT-723 transistors were still too big, so I switched to BJTs in the SOT-883L package (1.0mm by 0.6mm, a wee bit wider than an 0402 component). There are probably some more space savings to be gained by finding a cleverer part arrangement and by switching from KiCad's 0201 footprint to a more compact 0201 footprint.
Evil Mad Scientist Labs has a large 555 timer kit, also. It seemed only natural to tackle that one, too! My approach to that challenge is here.
TODO: Re-check design, order boards and parts if I'm feeling brave, order stencil if I'm not feeling that brave, figure out how I'm going to power a ±15V op-amp without access to a benchtop power supply.
