OPA348: TINA TI SIMLATION ERROR: +IN CMRR

I could find 2 instances of +IN_CMRR anything missing in these netlists???

Hello Vinayak,

The op amp supply is connected backwards (you are suppling -5V)

Also odd is that all pins are labeled as pin 6. Can you send the simulation file?

OPA348.TSMSIMULATION-1 - autosave 24-07-23 14_53.TSC

I have attached the .tmc file of OPA348 which is downloaded from TI 

www.ti.com/.../sbom279

Vinayak,

The attached files also did not work correctly for me. Oddly, old simulations I had that did work before now have the same error. I do have even old file that do still work because it is an earlier version of the model.

I put this old model in your simulation file and it worked. Note that your circuit is VOUT = -1 * VIN, so a positive input is not useful. The 1k resistor values pass a fair bit of feedback current, larger values should be used.

We will look into why the current model seems to be broken.

SIMULATION-1 - autosave 24-07-23 14_53 (1).TSC