John, Thanks for testing in TINA. I did test it as well with TINA, no problems so far. Unfortunately this does not help me much. What I have seen is that in a short transient analysis (sine wave 1kHz, 1.5V offset, 0.5V amplitude) the OPA320 model output shows some kind of settlement in the first 0.1us from half of the supply voltage, where as the OPA2192 ( OPA192 ) output starts right from 1.5V. Maybe this has to do with the implemented shutdown function in the OPA320 and this maybe affects the AC analysis in LTspice (?). Regards, Patrick
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