I am basically trying to design an ADC in a transistor level. The option at hand is to use LTSpice. But when i start simulating more than some 40 transistors it is taking forever to simulate. I just wish to know if there are any spice simulators (FREE of cost) available in the internet which can work fast for simulating some medium scale of 100-200 transistors.
I am basically trying to design an ADC in a transistor level. The option at hand is to use LTSpice. But when i start simulating more than some 40 transistors it is taking forever to simulate. I just wish to know if there are any spice simulators (FREE of cost) available in the internet which can work fast for simulating some medium scale of 100-200 transistors.
Thanks for the reply!
I want to do it as a part of my (VLSI course) college project.
Things worked well as long as i simulated individual blocks(<some 20 mosfet), but when i integrated them to work together its taking a lot of time.
I have a full design in my mind, hopefully it will work. But no.of transistors that can be simulated turns out to be a bottle neck(presently using LTSpice).
I would appreciate if you could let me know about spice simulators(free is preferred) which satisfy my needs.
It's not the SIM package that is your problem, it's the processing speed of your computer.
Large, multi-component circuits such as you describe, using any particular SIM software (especially the free ones), chew up enormous processing power since they are, literally, mathematically calculating the individual responses of each and every component at every iteration.
Yes,Now i got it. You both are right, Mr.CowboyBob & Mr.Mike. I tried the simulation on a different computer and it worked like a charm.
Thanks guys...