What I mean is that there are few real-life
BIBO opamps,from which SPICE models with real-life features,
such as offset and PSRR could be produced.
On 2024-12-22 15:03, Tom via groups.io
wrote:
On Sun, Dec 22, 2024 at 08:46 AM, John Woodgate wrote:
Yes, because it's quite easy, and probably cheaper,
to use 2 or 3 sections of a quad opamp to make a good
balanced-in/balanced-out circuit.
XSPICE models are minimalistic and designed for speed.
Complex models would slow simulations to a crawl. In this case
the "XSPICE way" for making a fully differential OpAmp creates a
model with limitations and the odd "feature" it doesn't care if
inputs or outputs are swapped.
--
OOO - Own Opinions Only
Best Wishes
John Woodgate
Keep trying
John Woodgate
