INA849: simulation for INA849 connected with OPA211

Nan Li

Part Number: INA849
Other Parts Discussed in Thread: OPA211, , TINA-TI

Hi TI,

I'm doing one simulation.

I connect the circuit like below two figures.

I want to create one stable net which will generate stable current at "R3".

OPA211 is the buffer of INA849 out.

But the simulation result is not good.

By the way, I simulate both OPA211 and INA849, results are normal.

Best Regards,

Nan

+1 kai klaas69 over 3 years ago

Guru 140200 points

Hi Nan,

works for me in TINA-TI:

Kai

0 Nan Li over 3 years ago in reply to kai klaas69

Hi Kai,

Yes it works!!!

I add one 'tail' as your circuirt.

And I get the result I want.

But why without this 'tail' part, the simulation will make mistakes?

Thank you very much!

Nan

Amplifiers forum