Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronic 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.

Register Log in

ideal soueces in cadence virtuoso

mirror_pole

Junior Member level 1
Joined
Nov 22, 2020
Messages
19
Helped
0
Reputation
0
Reaction score
1
Trophy points
3
Activity points
241
Hello guys,

I got a question concerning ideal sources in cadence. I build a circuit using ideal sources and want to replace them by real ones using transistors.
There is one current source which is not fixed to a rail and is therefore floating. It might sound stupid but can ideal sources have an impact on your poles?
My intention was that this floating current source which is not fixed provides a large parasitic impedance(ideal current source), so the pole assosiated with that node moves left in my bode plot.
 

Dominik Przyborowski

Advanced Member level 3
Joined
Jun 6, 2013
Messages
951
Helped
426
Reputation
854
Reaction score
417
Trophy points
1,343
Location
Norway
Activity points
7,110
Ideal current source is an open in the circuit. Moreover, every AC analysis replaces ideal sources with their internal impedances, so ac, PZ, stb analysis seeing open circuit in this place.
 

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top