LTC6268-10: Input Capacitance & Input Bias Current in LTspice


I couldn't find any answer to two questions regarding Analog's/LT's models in LTspice in general and the model of LTC6268(-10) in particular.

  • Do op amp models already include input capacitance (0.1pF resp 0.45pF for LTC6268-10)?
  • In various configurations, input bias currents are several orders of magnitude higher than specified. How good is the model in this regard?

Of course, spice cannot have perfect accuracy, but it's unclear if the LTC6268-family has a low input bias current in specific situations only – I see up to 500 uA-pp stray input currents oscillating at about 1 GHz and up to 300 pA-pp input currents at the frequencies it's amplifying at.