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TINA/Spice/LMP2232: Placing Dual op-amps

Paul Mayer
Intellectual 380 points
Part Number: LMP2232
Other Parts Discussed in Thread: TINA-TI,

Tool/software: TINA-TI or Spice Models

I am using TINA TI to model a circuit.  I want to place a dual op-amp and keep the pin structure for the dual.  When I place a LMP2232 (dual device) the input pins are 2 & 3 and the output pin is 1.  When I select the part again I still get pins 2,3 and 1.  How do I get the second half of the op-amp to place (pins 5, 6 &7)?

  • 0
    TI__Genius 9775 points
    Hi Paul,

    I am no 100% clear with your question, but do you intend to create dual op-amp out of LMP2332 using text netlist? or some other method?

    If you want to create using netlist, you can do as follow:


    .SUBCKT LMP2232DUAL VINP1 VINM1 VOUT1 VINP2 VINM2 VOUT2 VCC VEE
    X1 VINP1 VINM1 VCC VEE VOUT1 LMP2232
    X2 VINP2 VINM2 VCC VEE VOUT2 LMP2232
    .ENDS


    * PINOUT ORDER +IN -IN +V -V OUT
    *
    .SUBCKT LMP2232 3 4 5 2 1
    .ENDS


    But if you intend to create it using other method, can you send me some pictures or something or could you re-describe your question again?

    Herman
  • 0 in reply to Herman Theodorus
    TI__Genius 9775 points
    Hi Paul,

    Since you have not replied for quite some time, I'll assume that somehow you have already resolved your issue. I'll close this post for now, but do not hesitate to reply again if you still have some challenges.

    Herman
  • 0 in reply to Herman Theodorus
    TI__Mastermind 37310 points

    Herman,

    I think Paul was expecting the LMP2232 to contain two amps inside and the tool would track how many amplifiers have been placed.

    Paul,

    Unless you are using a tool that also does PCB which would then require a LVS, it is quite common for the design software not to distinguish among single/dual/quad packages.

    If you have to, you can follow Herman's method of creating a wrapper yourself which has the correct pin assignment:

    .SUBCKT LMP2232DUAL VOUT1 VINM1 VINP1 VEE VINP2 VINM2 VOUT2 VCC 

    Regards,
    JC

  • 0 in reply to JC Zhu
    Intellectual 380 points
    OK

    Thank you all.