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LMV842 Spice model "RRIO" No Function

cafain
Mastermind 6615 points
Other Parts Discussed in Thread: LMV842, TINA-TI, OPA376

Hi,

Download LMV842 Spice model,I simulated with TINA-TI.

The result was that the characteristics of "RRIO" were not good.

The power supply is 3.3V, the input signal is 0-3.3V @1kHz with an offset of 1.65V.
Please provide SPICE model with "RRIO" characteristics.

Best regard

  • 0
    TI__Mastermind 20590 points
    Hello Cafain,

    I am going to move this to the General Purpose amplifier forum. Our team doesn't support this device from the automotive forum and it looks like the most recently answered questions on this device is from the General Purpose amplifier forum so hopefully they can help you.

    Best Regards, Scott
  • 0
    TI__Guru 54976 points
    Hello Cafain,

    I have confirmed that the model output does clip 800mV below V+. The real device does not do this.

    I have put in a request to the model group to fix this. This can take several weeks depending on workload.

    In the mean time, try using a OPA376 model - which is close BW and slew wise, but has better offset.

    Regards,
  • 0 in reply to Paul Grohe
    Mastermind 6615 points

    Hi,

    Thank you for your support.

    I understood that there was a mistake in the Spice model.
    I hope that the modified version will be released as soon as possible.

    Best Regards,