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CA3130 (LT)Spice model

Discussion in 'CAD' started by Johnny Boy, Oct 2, 2006.

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  1. Johnny Boy

    Johnny Boy Guest

    I've been searching, without luck, for an LTSpice compatible model for the
    CA3130, CA3140 and CA3240 op-amps.
    Can anyone point me in the right direction?

    .... Johnny
     
  2. Leon

    Leon Guest

    I'd be inclined to use a modern device for which a SPICE model is
    available.

    Leon
     
  3. Johnny Boy

    Johnny Boy Guest

    You're probably right, I actually only want to compare performance with
    a couple of "modern" devices such as the LTC6241, without wasting extra time
    building circuits for the comparison. I have a heap of CA3130s in stock and
    would like to use them for my current, (single-supply), precision rectifier
    if it's feasible.
    In simulation, at least, I can't get better performance from newer
    op-amps than I expect from the 3130, especially regarding outputs going
    somewhere (real) close to 0V and speed, (if I'm careful about choice of
    compensation caps.) I need rail-to-rail inputs and outputs, with the ability
    to handle inputs that go down to 400mV below the negative rail in a
    single-supply circuit. (I'm not asking for much - just perfection and a bit
    of magic.)

    .... Johnny
     
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