Which accuracy should I set? (Spectre Simulation)

Discussion in 'Cadence' started by Vincent, Sep 23, 2004.

  1. Vincent

    Vincent Guest

    I'm simulating a Sampling and Hold circuit, which has 14 bit
    resolution. The simulator is spectre. When I set ‘accuracy
    (errpreset)' to ‘moderate', the result (after DFT of transient
    simulation results) shows about 12 bit resolution. However, after
    setting ‘conservative', it has about 14 bit performance. My question
    is, which result is more reliable?

    Also, with switched capacitor circuit, like this S/H, which integer
    method is better? Trap, Trapgear2 or Gear2?

    Thanks a lot.
     
    Vincent, Sep 23, 2004
    #1
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