Hello!

My name’s Lily. This is my site where I write about whatever I’ve been up to lately. Which is mostly circuits. This site supports RSS

I Want to Make an Analog IC

I’m currently pursuing my undergrad in electrical engineering, and I’ve been trying to explore niches that appeal to me so I can figure out what exactly I want to do with my career. One area that’s currently got my interest is analog IC design. It seems like it could offer the type of low abstraction problem solving I tend to like. Unfortunately it’s pretty inaccessible. Most people don’t get to make an IC (AKA ‘tape out’) until they’re in a graduate program pursuing their masters or PHD. That’s a couple years away for me, and I don’t want to wait that long. So I’m gonna make one now. ...

December 13, 2025

Designing a Gilbert Cell Based Automatic Gain Controller

Why Make This? A couple of months back I decided to try making an analog function generator. My requirements were pretty loose, I just wanted to see if I could generate some square, triangle, and sine waves. Additionally, I wanted to be able to adjust the frequency and amplitude of the waves generated. This actually turned out to be pretty easy, only taking three op-amps. ...

December 7, 2025