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TINA/Spice/TLC2262: Some questions about TINA simulation in transient analysis and AC analysis

Part Number: TLC2262
Other Parts Discussed in Thread: TINA-TI, , OPA172, LF156

Tool/software: TINA-TI or Spice Models


I am now using TINA to simulate the behavior of an op amp TLC2262. But the result of AC analysis and transient analysis is different.

1, In the first case, it is ac analysis which operates between 1 to 500kHz and from the result below, the amplitude of the output waveform is increasing with the frequency.

2, But when it comes to transient analysis with a 1V input at 500kHz, the amplitude is about 200mV which is a conflict with the result of ac analysis who has 650mV at 500kHz.

Could anyone explain to me why the result behaves like this?

Thank you!

Best regards,