Part Number: LSF0101
Which model do i need to choose on my level shifter ibis file? I only see one terminal on my ibis file in ADS.
Would also appreciate help in simulating using the spice model.
Hi Supreeth,
The generic component can be used, and then once you import the IBIS model, the appropriate pinouts should auto-populate:
It is suggested to have the Series switch enabled to "ON" to simulate the device as a switch behavior additionally:
Since the LSF-type translators is comprised of passive FETs, the IO model should be selected depending on the voltage that output signal is being translated to. For example, if 1.8V to 3.3V simulation is desired, LSF0101_IO_33_S should be used to observe 3.3V output behavior. If the output side voltage is 1.8V, the LSF0101_IO_18_S model may be used to observe 1.8V output behavior.
Regards,
Jack
Hey Jack,
Thanks for the reply. I don't see the model you mentioned in my ibis file after importing into the ADS generic IBIS component. I'm using the one I got here -
(https://www.ti.com/product/LSF0101#design-tools-simulation ) under Design and simulation. Am I supposed to be using something else ? For reference I have attached the models I see below for your reference.
I do not see the series switch toggle you mentioned under the model tab as well. I am using ADS 2025 Update 2.
Hi Supreeth,
I am running on the 2023 ADS setup. Do you see any of the _S files at all for selection? If you open the lsf0101.ibs file alone, the S files should be visible:
Regards,
Jack
