Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
In an opamp, there are a few important specs. First there is the gain, which is expressed in terms of gm*R terms (for each stage). So you see that when gm changes, the total gain changes. However, this isn't usually a big deal, since the gain is made very large, and small variations don't matter much.
The bigger reason that gm is important is that the frequencies of the dominant pole and the non-dominant pole depend on gm. If these frequencies change, the bandwidth of the opamp changes.
So you can see that gm has a big impact on the gain and bandwidth of an opamp.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
