Current mode circuits vs Voltage mode circuits speed of operation

[engrMunna]

Hi, why is it generally said that current mode signalling is faster than voltage mode signalling? How is one faster than the other? or vice versa Thanks!

 

[LvW]

Hi, why is it generally said that current mode signalling is faster than voltage mode signalling? How is one faster than the other? or vice versa Thanks!

I think, this question is not easy to answer.
There is a swiss engineer (Hanspeter Schmid) who has published some papers dealing in detail with the question "voltage mode vs. current mode".
You can find these articles here: hps. Publications

---------- Post added at 18:35 ---------- Previous post was at 18:12 ----------

BTW: The given link contains a lot of other highly interesting papers - not only technical, but also with quasi-philosophical orientation (e.g. some tricks to "win" a discussion).

---------- Post added at 19:52 ---------- Previous post was at 18:35 ----------

BTW (again): The mentioned author (Hanspeter Schmid) has written a very detailed paper explaining why the BJT is voltage controlled rather than current controlled (as was dicussed in this forum some month' ago). It can be found here: SCIENCE HOBBYIST: how transistor works, an alternate viewpoint

 

[LvW]

Correction: The author of the last article mentioned above is not Hanspeter Schmid. (The link was given on Hanspeter's webside).
The author is William J. Beaty, BSEE (University of Washington, Seattle).

 

[engrMunna]

Thats a really nice link thanks!

 

[Virt Sham]

can anyone help me in understanding current mode circuits???

 

[crutschow]

ECL is sometimes considered current-mode logic. Is that what you are referring to?

 

[LvW]

can anyone help me in understanding current mode circuits???

"Current mode" means that both input and output signals of an analog signal processing device (amplifier, filter,...) is a current rather than a voltage.