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TINA/Spice/THS7530: Weird behaviour when simulating along with other opamps

Part Number: THS7530
Other Parts Discussed in Thread: TINA-TI, , THS4541, OPA859

Tool/software: TINA-TI or Spice Models

Hi everyone,

This is a case where the THS7530 works but then it doesn't. It is just weird. I have attached the TINA TSC file for re-production of the issue.

If the analog chain includes the OPA859s, the THS7530 doesn't work. With the OPA859s or without them the VM1 & VM2 are exactly the same which means same CM and same differential swing.

Is there anything i should set-up in TINA. My version is the free 9.3.200.277 SF-TI.

This is the case with the SW1 & SW2 closed, SW3 connecting R5 with R4&R7 and SW4 connecting R6 with R7&R41

This is the case with the SW1 & SW2 open, SW3 connecting VG1 with R4&R7 and SW4 connecting VG1 with R7&R41

THS7530.TSC

Am i missing anything here?

Regards

Manos