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OPA615 PSPice model

Other Parts Discussed in Thread: OPA615, TINA-TI

Hi, 

  I'm trying to simulate the OPA615 used as nanosecond pulse integrator (e.g. Fig.47 of "sbos299e.pdf" datasheet). As a circuit simulator we are using LTspice / NGSpice / simulator. In any case we had to do manually  some translations in order to adapt the pspice netlist to the intended simulator. As a result, the outputs have no or little sense (with all simulators).

E.g. using HSpice, the OPA is integrating input pulses only if the "gnd" pin is connected to Vee, instead.
With LTSpice, the OPA is integrating the pulses  provided that  the 'C_Hold' pin is set to Vcc, no way to connect a clock to it.

The question is: did anyone try simulating the OPA615 with other than PSpice simulators?

Is there a maximum frequency for the C-Hold signal? 

Thank you in advance.

Best Regards,

  Alessio