34 Transistor CMOS Full-Adder

221

03:39:04

Instead of two AND gates and an OR gate, I used one big AND-OR hybrid to reduce the transistor count to only 34 instead of 42. In an IC, this could be reduced to 26 transistors but that's with the convenience of having a body terminal which is only easily available in ICs. If I tried to do it with 26 transistors then without a body terminal there would be some voltage drop corresponding to the transistors activation voltage.

published 8 years ago

mountainman

8 years ago

Neat

ststav

8 years ago

Wow very nice

Issacsutt

8 years ago

Jason9, I'm just curious, how have you come about to know everything you know concerning electronics?

Issacsutt

8 years ago

I like your designs, you do a nice job

jason9

8 years ago

Just messing around. When I first got this app, I was absolutely terrible at electronics. I was pretty much clueless. I have messed around a bunch and progressed greatly. I'm nit sure I even new about logic gates before I this app.

eekee

7 years ago

Kool! I tested its speed, it's not particularly slow for EC: http://everycircuit.com/circuit/6631827854065664

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