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.
op amp high gain
I agree with "drDOC"'s opinion, I only have some more comments:
1. In general, cascoding input differential pairs is always to enhance PSRR performance, instead of open loop gain;
2. The bulk of every transistor in cascoded input differential pairs should be connected to its...
Re: PSRR
It depents on the application where you use this Opamp, and the frenquency where you get this 31dB value.
For a positive supply, working as to audio/video's supplier, it's not too bad. And if PSRR=31dB under f=10MHz, it's a little impressive!
I. Ture, b/c of finite early voltage;
II. False, ICBO means "measure ICB when Emitter is open";
III. False, the curve of beta versus temperature is a bow bend.
iV. False, Ic=A*Js*exp(VBE/VT-1);
V. Ture
VI. False, depends on the ration of doping level on two sides.
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.
