Why bjt is faster than cmos

Search Advanced search…. New posts. Search forums. Log in. Install the app. Contact us. Close Menu. Welcome to EDAboard. To participate you need to register. Registration is free. Click here to register now. Register Log in. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. You are using an out of date browser. It may not display this or other websites correctly.

You should upgrade or use an alternative browser. Thread starter dineshbabumm Start date Mar 12, Status Not open for further replies. Asked 9 years, 8 months ago. Active 3 years, 11 months ago. Viewed 29k times. So why having "CMOS characteristics" makes people proud? Adam Calvet Bohl 4 4 silver badges 17 17 bronze badges. Add a comment. Active Oldest Votes. The outputs actively drive both ways. The outputs are pretty much rail-to-rail. Olin Lathrop Olin Lathrop k 36 36 gold badges silver badges bronze badges.

Oli Glaser Oli Glaser Why CMOS? But why is MOS good? I know it was used in NMOS designs like the or the Atari 's video chip, but I would think it would require the use of either passive pull-ups or cycle-based precharge intervals.

Passive pull-ups are clearly not going to be energy efficient nor fast, and cycle-based precharge intervals wouldn't seem terribly conducive to speed either. Is there some trick I'm not familiar with? Look out for Domino logic, or NORA logic; in pipelined systems, you can use clocks to drive the precharging phase, and you can interleave it over more stages to use all the edges of the clock. So it's based on dynamic logic, more than passive loading. Imagine that you have the cascade of a n-stage and a p-stage: when the clock falls, the n-stage goes in precharge mode while the p-stage evaluates the input Curd Curd The Photon The Photon k 3 3 gold badges silver badges bronze badges.

Community Bot 1. In silico In silico 1, 1 1 gold badge 11 11 silver badges 12 12 bronze badges. Manjunatha Manjunatha 1. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. So if high transconductance, high and transistors are higher in speed and So bjt is faster than mosfets But now after all the big investment in cmos technology, mosfet speed is now proportional to bjts.

Google serves cookies to analyze traffic to this site and for serving personalized ads. Learn more. Skip to content. Last updated: 30th Jan '