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TINA/Spice/CD4069UB: Use of CD4069UB with VDD=15v in P spice

Mohammad Adel Amani
Prodigy 130 points
Part Number: CD4069UB
Other Parts Discussed in Thread: TINA-TI,

Tool/software: TINA-TI or Spice Models

Hi dears

I need to use CD069UB in my simulation project with OrCAD P spice. In my project the VDD of IC must to be 15 v. I selected CD4069 from CD4000 library in OrCAD software. it seems that default VDD of CD4069 is +5v.

my first question is:

How can I change the VDD of CD4069 to 15 v ?

---------------------------------------------------------------

I checked the ti.com for finding the library of CD4069 that is designed by Texas Instruments, unfortunately the cite dose not has its library.  

my second question is:

Is there any P spice library for CD4069UB that has good performance (except CD4000 library) and I be able to change its VDD to +15 or other values?

Thanks all

  • 0
    TI__Genius 9775 points
    Hi Mohammad,

    TI does not have spice model for this specific part. But you might want to check this database to find similar parts that might have model that might potentially you can use for your simulation.

    webench.ti.com/.../

    If you can't find anything that matches your need and/or can be adjusted to your voltage specification, then I would recommend to create your own digital level shifter block. Basically prior to your CD4069, put dummy digital level shifter from 15V logic to 5V and at the output from 5V to 15V.

    An example of digital level shifter subcircuit that you can use:

    .SUBCKT DIGLEVSHIFT 1 2 VDD_OLD VSS_OLD VDD_NEW VSS_NEW
    E1 3 0 VALUE = { IF( V(1) < (V(VDD_OLD)+V(VSS_OLD))/2, V(VSS_NEW), V(VDD_NEW) ) }
    R1 3 2 1
    C1 2 0 1e-12
    .ENDS

    Herman