stelik
Newbie level 3
I am fairly new to IBIS models and I need some help simulating an IBIS file in HSpice. I am going to make a test circuit for a new I/O signaling scheme, and I will be using a buffer from On Semiconductor (like this: NB100LVEP17). However, before I do that, I need to determine the "on resistance" of the buffer, the resistance across the buffer when it is high. I need to determine this value in order to calculate the values of other components in the circuit. So what is the best way to simulate this?
I know IBIS models give you I/V curves for the buffer. Can I just use the slope of the pull-up curve and use that as the on resistance, or is there a more accurate way?
Also, how can I simulate the entire driver using IBIS model? For example, if I want to connect a PRBS signal to the input pin of the driver and view the signal on the driver's output pin, would I need to cascade the buffer's input model followed by the buffer's output model? I have been using ADS and MWO to do this, since they have built-in IBIS components, but maybe HSpice would be a better tool for this problem. Any thoughts? Thanks in advance.
I know IBIS models give you I/V curves for the buffer. Can I just use the slope of the pull-up curve and use that as the on resistance, or is there a more accurate way?
Also, how can I simulate the entire driver using IBIS model? For example, if I want to connect a PRBS signal to the input pin of the driver and view the signal on the driver's output pin, would I need to cascade the buffer's input model followed by the buffer's output model? I have been using ADS and MWO to do this, since they have built-in IBIS components, but maybe HSpice would be a better tool for this problem. Any thoughts? Thanks in advance.