Technical specifications regarding simulation speed

[sebastianbratescu]

Hi,

Can anyone give me some feedback on this topic?

I have a customer requesting some information regarding simulation speed ans asks me if it is possible to simulate circuits with 1ns switching time?

He wants some sort of documentation on this topic.

He is interrested also in the component availability for the followintg:

- microcontrollers PIC18 Family (Microchip),

- ADC ADC121S101 Family (Analog Devices),

- micro gates - 74AUP Family (Texas Instruments) or qeuivalent circuits from NXP,

- DC to DC convertors - Linear Tehnology.

Thanks.

[lacy]

I can offer a few answers here, but NI can provide much more info.

According to my calculations the 1ns switching time would be equivalent to 1 Gigahertz and this seems possible. I just ran a simple test circuit with an AC source across a resistor at 1 Gigahertz and it simulated fine. This would indicate to me that it should be possible. I do not know anywhere in the documentation that I have where it states any information on maximum speed or switching capabilities. This would need to be provided by NI if there is any such documents.

As far as the PICs are concerned. This would depend on whether this person needs it for simulation purposes or just layout purposes. If he just need it for board layout purposes then I believe there are about 4 in the database. The MCU Module is limited to the PIC16F84 for programming and simulation and no more can be added to it unfortunately.

There are no DC to DC converters from Linear Technology, but there are some virtual SMPS components in the database that can be used for simulation that may be comparable.

I do not know about the 74AUP. I will let NI address this further as this is all the information I have.